2d9587d87fd198c15f3b2a5cac91da997899eb11c3dd46393ea025e8e3dceae1

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
28-06-2024 14:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1a755b5e39341ef5651364e803c390b7_JaffaCakes118.dll
Size

69KB
MD5

1a755b5e39341ef5651364e803c390b7
SHA1

9899d99352898764f0f220f38b9060b18800fbd6
SHA256

2d9587d87fd198c15f3b2a5cac91da997899eb11c3dd46393ea025e8e3dceae1
SHA512

f9d9ccfb48ba805c43ded49eb165c395fff0ea200591cc56d5726b480efc3a0a594c031e54bbb3ed1d6a9c795e265f6316466d5ad475f491bc0ef7378ee8a3ba
SSDEEP

1536:XkGGghJodS6nurNsK0qCgmDdfqSYdBmhgDyKxiJDOSK:X8g3osauWDwSo02CJDOS

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

behavioral1/memory/3004-0-0x0000000000400000-0x0000000000431000-memory.dmp upx
Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
stealer adware

Modify Registry
T1112

Browser Extensions
T1176

Processes:

regsvr32.exe

description ioc process

Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{3663B381-7AAB-4005-9557-2793E4339852} regsvr32.exe

resource	yara_rule
behavioral1/memory/3004-0-0x0000000000400000-0x0000000000431000-memory.dmp	upx

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{3663B381-7AAB-4005-9557-2793E4339852}	regsvr32.exe

Modifies registry class 9 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3663B381-7AAB-4005-9557-2793E4339852}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3663B381-7AAB-4005-9557-2793E4339852}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a755b5e39341ef5651364e803c390b7_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3663B381-7AAB-4005-9557-2793E4339852}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3663B381-7AAB-4005-9557-2793E4339852}\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a755b5e39341ef5651364e803c390b7_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3663B381-7AAB-4005-9557-2793E4339852}\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3663B381-7AAB-4005-9557-2793E4339852}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{3663B381-7AAB-4005-9557-2793E4339852}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 3008 wrote to memory of 3004	3008	regsvr32.exe	regsvr32.exe
PID 3008 wrote to memory of 3004	3008	regsvr32.exe	regsvr32.exe
PID 3008 wrote to memory of 3004	3008	regsvr32.exe	regsvr32.exe
PID 3008 wrote to memory of 3004	3008	regsvr32.exe	regsvr32.exe
PID 3008 wrote to memory of 3004	3008	regsvr32.exe	regsvr32.exe
PID 3008 wrote to memory of 3004	3008	regsvr32.exe	regsvr32.exe
PID 3008 wrote to memory of 3004	3008	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1a755b5e39341ef5651364e803c390b7_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3008

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\1a755b5e39341ef5651364e803c390b7_JaffaCakes118.dll
2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3004

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3004-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download