Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
30/09/2024, 08:42
Static task
static1
Behavioral task
behavioral1
Sample
006fa54aa96d7a0de2620e11959ca5b4_JaffaCakes118.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
006fa54aa96d7a0de2620e11959ca5b4_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
006fa54aa96d7a0de2620e11959ca5b4_JaffaCakes118.dll
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Size
236KB
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MD5
006fa54aa96d7a0de2620e11959ca5b4
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SHA1
8813b72651248d370d66ab8c3d7ce9cfbf6779c6
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SHA256
7f7321e3840be17153704a059f6129a6d1896f8ae7166ea4143a24df2e82d0a6
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SHA512
b5754db9efe2958a751ab8abc41aefd1b882440838a1fc04177c845e90f0c43dfc5c461925bdaaa9e22d35005be1be34870fb6f1039c05921802d8ed5096ad08
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SSDEEP
3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkI4:+Qj9U3jwO3rt5n
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\tsp = "{f6b40738-7e3c-c381-8f4d-7e3c8fb01332}" rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 2712 rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\gfc.dll rundll32.exe File created C:\Windows\SysWOW64\onk.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\onk.dll rundll32.exe File created C:\Windows\SysWOW64\gfc.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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f6b40738-7e3c-c381-8f4d-7e3c8fb01332} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f6b40738-7e3c-c381-8f4d-7e3c8fb01332}\ rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f6b40738-7e3c-c381-8f4d-7e3c8fb01332}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f6b40738-7e3c-c381-8f4d-7e3c8fb01332}\InprocServer32\ = "C:\\Windows\\SysWow64\\onk.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f6b40738-7e3c-c381-8f4d-7e3c8fb01332}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2712 rundll32.exe 2712 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2712 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2712 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2076 wrote to memory of 2712 2076 rundll32.exe 30 PID 2076 wrote to memory of 2712 2076 rundll32.exe 30 PID 2076 wrote to memory of 2712 2076 rundll32.exe 30 PID 2076 wrote to memory of 2712 2076 rundll32.exe 30 PID 2076 wrote to memory of 2712 2076 rundll32.exe 30 PID 2076 wrote to memory of 2712 2076 rundll32.exe 30 PID 2076 wrote to memory of 2712 2076 rundll32.exe 30
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\006fa54aa96d7a0de2620e11959ca5b4_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2076 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\006fa54aa96d7a0de2620e11959ca5b4_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:2712
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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