Analysis
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max time kernel
117s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
01-10-2024 14:41
Static task
static1
Behavioral task
behavioral1
Sample
063ac51b7cb51f92066b2665a2d6159d_JaffaCakes118.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
063ac51b7cb51f92066b2665a2d6159d_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
063ac51b7cb51f92066b2665a2d6159d_JaffaCakes118.dll
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Size
236KB
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MD5
063ac51b7cb51f92066b2665a2d6159d
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SHA1
e5bfd583873659e39e7482ddcf4765f0000c2e3f
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SHA256
678e8a1aecabefe5094369567caf62b6385a331813a4105e896bf6e99e044133
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SHA512
b103f00d900f3aafe23e50bc3e8aafb6d5a147e24f2a8ed617fd6e86af0ba0f92b6d173a21ce187fdddb5701302949c274136ab60a3e0efd0537e5d3a1a619a2
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SSDEEP
3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkIp:+Qj9U3jwO3rt5C
Malware Config
Signatures
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Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\kwdqx = "{e25cf39f-6ad4-bf29-7be5-6ad47b173ded}" rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 2984 rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\xjqdk.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\xjqdk.dll rundll32.exe File created C:\Windows\SysWOW64\fryls.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\fryls.dll rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{e25cf39f-6ad4-bf29-7be5-6ad47b173ded}\InprocServer32\ = "C:\\Windows\\SysWow64\\fryls.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{e25cf39f-6ad4-bf29-7be5-6ad47b173ded}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{e25cf39f-6ad4-bf29-7be5-6ad47b173ded} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{e25cf39f-6ad4-bf29-7be5-6ad47b173ded}\ rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{e25cf39f-6ad4-bf29-7be5-6ad47b173ded}\InprocServer32 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2984 rundll32.exe 2984 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2984 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2984 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3012 wrote to memory of 2984 3012 rundll32.exe 30 PID 3012 wrote to memory of 2984 3012 rundll32.exe 30 PID 3012 wrote to memory of 2984 3012 rundll32.exe 30 PID 3012 wrote to memory of 2984 3012 rundll32.exe 30 PID 3012 wrote to memory of 2984 3012 rundll32.exe 30 PID 3012 wrote to memory of 2984 3012 rundll32.exe 30 PID 3012 wrote to memory of 2984 3012 rundll32.exe 30
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\063ac51b7cb51f92066b2665a2d6159d_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3012 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\063ac51b7cb51f92066b2665a2d6159d_JaffaCakes118.dll,#12⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2984
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
625KB
MD595e2376b3323f062eb562b8586d0f14a
SHA1453d4c3bf4a489433b593420a37bbffb7749875a
SHA256bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017
SHA512b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d