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Analysis
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max time kernel
119s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
24/06/2024, 00:24
Static task
static1
Behavioral task
behavioral1
Sample
057fe3e2c3e8a329bed96f1969f1afeb_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
057fe3e2c3e8a329bed96f1969f1afeb_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
057fe3e2c3e8a329bed96f1969f1afeb_JaffaCakes118.dll
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Size
231KB
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MD5
057fe3e2c3e8a329bed96f1969f1afeb
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SHA1
cc9df692ab5be9a298834845163b9573afdabb17
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SHA256
c7ed79736ee6c5002ba7b49102beca830d50cbfa296a774ef914c52358200fa5
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SHA512
2ad7af9f5aa839c8d9c7208c7381b9fee9c576326f05984220a1e443a6818c10c893c9c532e5e4b53b38988b0a8af5dfb5748b49d3d1c6a5a603ebfbe6468d56
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SSDEEP
3072:zysX0WxnWd/IkmL+PViEbmzwtz/wk8YWbM:mskd/IkmuVfyWdMM
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\rufohlvmv = "{be907f7a-3618-8b6d-4729-3618f7f23431}" rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 1892 rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\mpajcgqhq.dll rundll32.exe File created C:\Windows\SysWOW64\ehsbuyizi.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\ehsbuyizi.dll rundll32.exe File created C:\Windows\SysWOW64\mpajcgqhq.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{be907f7a-3618-8b6d-4729-3618f7f23431}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{be907f7a-3618-8b6d-4729-3618f7f23431}\InprocServer32\ = "C:\\Windows\\SysWow64\\mpajcgqhq.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{be907f7a-3618-8b6d-4729-3618f7f23431}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{be907f7a-3618-8b6d-4729-3618f7f23431} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{be907f7a-3618-8b6d-4729-3618f7f23431}\ rundll32.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1892 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1892 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1892 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2068 wrote to memory of 1892 2068 rundll32.exe 28 PID 2068 wrote to memory of 1892 2068 rundll32.exe 28 PID 2068 wrote to memory of 1892 2068 rundll32.exe 28 PID 2068 wrote to memory of 1892 2068 rundll32.exe 28 PID 2068 wrote to memory of 1892 2068 rundll32.exe 28 PID 2068 wrote to memory of 1892 2068 rundll32.exe 28 PID 2068 wrote to memory of 1892 2068 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\057fe3e2c3e8a329bed96f1969f1afeb_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\057fe3e2c3e8a329bed96f1969f1afeb_JaffaCakes118.dll,#12⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1892
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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