metasploit | 1acd18c1ef588ec974897a15acb1f6ba0fd4065caaed18ba258d467bef213cde

Analysis

max time kernel
149s
max time network
87s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28-06-2024 02:27

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General

Target

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
Size

181KB
MD5

1874c9726275e7c0267a06321c3df630
SHA1

eb5115d6190d863726ff14443c2af5d2510be30f
SHA256

1acd18c1ef588ec974897a15acb1f6ba0fd4065caaed18ba258d467bef213cde
SHA512

74a4f500b8850c9a9fddd66fce68ea604552043f3bb680621c422810d342e48e3a4396b3bd35fe0d67411777da8719c7dcb55470b4ca80f33186914b569ddfb0
SSDEEP

3072:dUY+Ovbqs52owfxKDRmfixvdt1UPooskOX7tb/fXtJQZy:tviHpunTouLRvQY

Score

10^/10

metasploit backdoor evasion persistence trojan upx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Modifies firewall policy service 3 TTPs 8 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

wmpsk86.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsk86.exe = "C:\\Windows\\SysWOW64\\wmpsk86.exe:*:Enabled:Windows Service Monitor"	wmpsk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpsk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpsk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpsk86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsk86.exe = "C:\\Windows\\SysWOW64\\wmpsk86.exe:*:Enabled:Windows Service Monitor"	wmpsk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpsk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpsk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpsk86.exe

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
Deletes itself 1 IoCs

Processes:

wmpsk86.exe

pid process

2084 wmpsk86.exe
Executes dropped EXE 2 IoCs

Processes:

wmpsk86.exewmpsk86.exe

pid process

1716 wmpsk86.exe
2084 wmpsk86.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe

pid	process
2084	wmpsk86.exe

pid	process
1716	wmpsk86.exe
2084	wmpsk86.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/2452-0-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2452-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2452-3-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2452-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2084-43-0x0000000000400000-0x0000000000430000-memory.dmp	upx
behavioral2/memory/2452-44-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2084-46-0x0000000000400000-0x000000000044C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Processes:

wmpsk86.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Service Monitor = "C:\\Windows\\SysWOW64\\wmpsk86.exe" wmpsk86.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Service Monitor = "C:\\Windows\\SysWOW64\\wmpsk86.exe"	wmpsk86.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exewmpsk86.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpsk86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpsk86.exe

Drops file in System32 directory 4 IoCs

Processes:

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exewmpsk86.exe

description	ioc	process
File created	C:\Windows\SysWOW64\wmpsk86.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpsk86.exe
File opened for modification	C:\Windows\SysWOW64\	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpsk86.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exewmpsk86.exe

description	pid	process	target process
PID 4272 set thread context of 2452	4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
PID 1716 set thread context of 2084	1716	wmpsk86.exe	wmpsk86.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exewmpsk86.exe

pid	process
2452	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
2452	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
2452	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
2452	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
2084	wmpsk86.exe
2084	wmpsk86.exe
2084	wmpsk86.exe
2084	wmpsk86.exe

Suspicious use of UnmapMainImage 2 IoCs

Processes:

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exewmpsk86.exe

pid process

4272 1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
1716 wmpsk86.exe

pid	process
4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
1716	wmpsk86.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe1874c9726275e7c0267a06321c3df630_JaffaCakes118.exewmpsk86.exewmpsk86.exe

description	pid	process	target process
PID 4272 wrote to memory of 2452	4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
PID 4272 wrote to memory of 2452	4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
PID 4272 wrote to memory of 2452	4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
PID 4272 wrote to memory of 2452	4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
PID 4272 wrote to memory of 2452	4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
PID 4272 wrote to memory of 2452	4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
PID 4272 wrote to memory of 2452	4272	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
PID 2452 wrote to memory of 1716	2452	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	wmpsk86.exe
PID 2452 wrote to memory of 1716	2452	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	wmpsk86.exe
PID 2452 wrote to memory of 1716	2452	1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe	wmpsk86.exe
PID 1716 wrote to memory of 2084	1716	wmpsk86.exe	wmpsk86.exe
PID 1716 wrote to memory of 2084	1716	wmpsk86.exe	wmpsk86.exe
PID 1716 wrote to memory of 2084	1716	wmpsk86.exe	wmpsk86.exe
PID 1716 wrote to memory of 2084	1716	wmpsk86.exe	wmpsk86.exe
PID 1716 wrote to memory of 2084	1716	wmpsk86.exe	wmpsk86.exe
PID 1716 wrote to memory of 2084	1716	wmpsk86.exe	wmpsk86.exe
PID 1716 wrote to memory of 2084	1716	wmpsk86.exe	wmpsk86.exe
PID 2084 wrote to memory of 3436	2084	wmpsk86.exe	Explorer.EXE
PID 2084 wrote to memory of 3436	2084	wmpsk86.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3436

C:\Users\Admin\AppData\Local\Temp\1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4272

C:\Users\Admin\AppData\Local\Temp\1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1874c9726275e7c0267a06321c3df630_JaffaCakes118.exe"
3⤵
- Checks computer location settings
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2452

C:\Windows\SysWOW64\wmpsk86.exe
"C:\Windows\SysWOW64\wmpsk86.exe" C:\Users\Admin\AppData\Local\Temp\1874C9~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\SysWOW64\wmpsk86.exe
"C:\Windows\SysWOW64\wmpsk86.exe" C:\Users\Admin\AppData\Local\Temp\1874C9~1.EXE
5⤵
- Modifies firewall policy service
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2084

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Windows\SysWOW64\wmpsk86.exe
Filesize
181KB

MD5
1874c9726275e7c0267a06321c3df630

SHA1
eb5115d6190d863726ff14443c2af5d2510be30f

SHA256
1acd18c1ef588ec974897a15acb1f6ba0fd4065caaed18ba258d467bef213cde

SHA512
74a4f500b8850c9a9fddd66fce68ea604552043f3bb680621c422810d342e48e3a4396b3bd35fe0d67411777da8719c7dcb55470b4ca80f33186914b569ddfb0

Download Submit
memory/2084-43-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2084-46-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2452-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2452-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2452-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2452-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2452-44-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download