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Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
30/09/2024, 10:20
Static task
static1
Behavioral task
behavioral1
Sample
00d46bb8df8ac3e1754b85e4d7b24f5d_JaffaCakes118.dll
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
00d46bb8df8ac3e1754b85e4d7b24f5d_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
00d46bb8df8ac3e1754b85e4d7b24f5d_JaffaCakes118.dll
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Size
236KB
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MD5
00d46bb8df8ac3e1754b85e4d7b24f5d
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SHA1
a214474cca26ad34c7c1a49271321bd43dcf8dda
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SHA256
b5ca0d52188aadc5ad4c0429bedbf698f5ee76b5324deaabbcbc072217502536
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SHA512
254543b470b4fa161b971362c8bf3ded3d284fa9228dd6ebf9367d989c7820fd3a1d1a27403044778d2cc5ad11c24536b3133851d7711f90f293e4a411df413d
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SSDEEP
3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkIi:+Qj9U3jwO3rt5d
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\tpxnn = "{fd57f612-75df-ca24-86e0-75df7e9ac6ff}" rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 2572 rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\gckaa.dll rundll32.exe File created C:\Windows\SysWOW64\oksii.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\oksii.dll rundll32.exe File created C:\Windows\SysWOW64\gckaa.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\{fd57f612-75df-ca24-86e0-75df7e9ac6ff}\ rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fd57f612-75df-ca24-86e0-75df7e9ac6ff}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fd57f612-75df-ca24-86e0-75df7e9ac6ff}\InprocServer32\ = "C:\\Windows\\SysWow64\\oksii.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fd57f612-75df-ca24-86e0-75df7e9ac6ff}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fd57f612-75df-ca24-86e0-75df7e9ac6ff} rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2572 rundll32.exe 2572 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2572 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2572 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2064 wrote to memory of 2572 2064 rundll32.exe 30 PID 2064 wrote to memory of 2572 2064 rundll32.exe 30 PID 2064 wrote to memory of 2572 2064 rundll32.exe 30 PID 2064 wrote to memory of 2572 2064 rundll32.exe 30 PID 2064 wrote to memory of 2572 2064 rundll32.exe 30 PID 2064 wrote to memory of 2572 2064 rundll32.exe 30 PID 2064 wrote to memory of 2572 2064 rundll32.exe 30
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\00d46bb8df8ac3e1754b85e4d7b24f5d_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\00d46bb8df8ac3e1754b85e4d7b24f5d_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:2572
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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