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Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
27/09/2024, 22:54
Static task
static1
Behavioral task
behavioral1
Sample
fb0d1f697f9a1f153511ecd696874f90_JaffaCakes118.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
fb0d1f697f9a1f153511ecd696874f90_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
fb0d1f697f9a1f153511ecd696874f90_JaffaCakes118.dll
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Size
144KB
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MD5
fb0d1f697f9a1f153511ecd696874f90
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SHA1
0e6e6d10c112563e65eb753fc90bf22805d63536
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SHA256
e4798759880902ac498ddecafd10eca6e459ac5ab18aef5bba679b729113ba25
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SHA512
abc910f6f8352b163754413a12fa38106f9b8d9a75ef71631600a51b1e7ec7e52b01a67e4f1efadd10f5d164f294a1abf6529d181ffe9388b048304cb9c7d541
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SSDEEP
1536:Z6F7+RXy+NU0xNOQDWPIXqrN/8SKH334uG8P955BtpYWCVCFIfmE1KmY4ULJLiz7:Eim0/OQDMI+0L0WCQZMnd98zZ7fgMti
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation rundll32.exe -
Executes dropped EXE 1 IoCs
pid Process 1512 rundll32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32mgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Kills process with taskkill 1 IoCs
pid Process 4932 taskkill.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4932 taskkill.EXE -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3672 wrote to memory of 3528 3672 rundll32.exe 82 PID 3672 wrote to memory of 3528 3672 rundll32.exe 82 PID 3672 wrote to memory of 3528 3672 rundll32.exe 82 PID 3528 wrote to memory of 1512 3528 rundll32.exe 83 PID 3528 wrote to memory of 1512 3528 rundll32.exe 83 PID 3528 wrote to memory of 1512 3528 rundll32.exe 83 PID 3528 wrote to memory of 4932 3528 rundll32.exe 84 PID 3528 wrote to memory of 4932 3528 rundll32.exe 84 PID 3528 wrote to memory of 4932 3528 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fb0d1f697f9a1f153511ecd696874f90_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3672 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fb0d1f697f9a1f153511ecd696874f90_JaffaCakes118.dll,#12⤵
- Checks computer location settings
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3528 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1512
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C:\Windows\SysWOW64\taskkill.EXE"C:\Windows\system32\taskkill.EXE" /f /im Explorer.exe3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4932
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
76KB
MD52e7df5ae9dcabe137166989493d996a9
SHA100a2f1abd5480d5e23bf512a8ee37aa842f69b54
SHA2564c53f34aa96dc64de964e0f440218ea918b4ac56576323edb4626b17265bd8ef
SHA51238bbc02e1767a8337ce53c73c637d4d9ec883d9f966dff26fb92ecda6d56646166deb5836a7edfd43725408f2e31f07935dbfaf726e6ea77c64ade18bad42d8f