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Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
23/06/2024, 22:58
Static task
static1
Behavioral task
behavioral1
Sample
038ba7b5c0a0e6ab89c26423bd8763cb_JaffaCakes118.dll
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
038ba7b5c0a0e6ab89c26423bd8763cb_JaffaCakes118.dll
Resource
win10v2004-20240226-en
General
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Target
038ba7b5c0a0e6ab89c26423bd8763cb_JaffaCakes118.dll
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Size
231KB
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MD5
038ba7b5c0a0e6ab89c26423bd8763cb
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SHA1
095279862cbfb9cffd95d467c4d1e6e2ddc36338
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SHA256
d07bd867efce0b632713fe6c4b69f0e33f3bb65d5256413dd5afd581af044b8f
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SHA512
3a0380648039a75a1061dd4b227596126d4af52e48d61e105185ad27ecf7af06d020a1f7680decf91d0dfc6f7036ef5015802a1bfa7d3a56fc4dab00c310bd83
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SSDEEP
3072:zysX0WxnWd/IkmL+PViEbmzwtz/wk8YWbO:mskd/IkmuVfyWdMO
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\irljk = "{271129d1-af99-f4ee-b0aa-af99a159c509}" rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 1636 rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\dmgef.dll rundll32.exe File created C:\Windows\SysWOW64\veywx.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\veywx.dll rundll32.exe File created C:\Windows\SysWOW64\dmgef.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{271129d1-af99-f4ee-b0aa-af99a159c509}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{271129d1-af99-f4ee-b0aa-af99a159c509} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{271129d1-af99-f4ee-b0aa-af99a159c509}\ rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{271129d1-af99-f4ee-b0aa-af99a159c509}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{271129d1-af99-f4ee-b0aa-af99a159c509}\InprocServer32\ = "C:\\Windows\\SysWow64\\dmgef.dll" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1636 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1636 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1636 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1576 wrote to memory of 1636 1576 rundll32.exe 28 PID 1576 wrote to memory of 1636 1576 rundll32.exe 28 PID 1576 wrote to memory of 1636 1576 rundll32.exe 28 PID 1576 wrote to memory of 1636 1576 rundll32.exe 28 PID 1576 wrote to memory of 1636 1576 rundll32.exe 28 PID 1576 wrote to memory of 1636 1576 rundll32.exe 28 PID 1576 wrote to memory of 1636 1576 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\038ba7b5c0a0e6ab89c26423bd8763cb_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1576 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\038ba7b5c0a0e6ab89c26423bd8763cb_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:1636
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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