Analysis
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max time kernel
94s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
11/07/2024, 15:20
Static task
static1
Behavioral task
behavioral1
Sample
39ac6f78e012433fa9bf0e553cfa67e7_JaffaCakes118.dll
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
39ac6f78e012433fa9bf0e553cfa67e7_JaffaCakes118.dll
Resource
win10v2004-20240709-en
General
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Target
39ac6f78e012433fa9bf0e553cfa67e7_JaffaCakes118.dll
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Size
64KB
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MD5
39ac6f78e012433fa9bf0e553cfa67e7
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SHA1
a91489d78d3e342c55e2c6ecbdc2649334612dcb
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SHA256
2b6392d854b3747eb5b728eaf1f37dab3de9ef2ec9f6140c9e3c969ccf4fcbd3
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SHA512
ce1852f8430dd8f17ae873a9f7521265a506b658390b4fc2cfcb1237d11824870e2880a98be5c9dc6a173308b60fb1ec9c127bc7d0e12511dcc9547c2c313c23
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SSDEEP
768:zafQmHy4c93vGSxt7j7g1E9wWEWJJd3G5U3s4xQMm37L3EVgfRO+ozTlt:rmS9T5ftwWTGm3O33/IJ1
Malware Config
Signatures
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Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation cmd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000_Classes\Local Settings cmd.exe -
Runs .reg file with regedit 1 IoCs
pid Process 4900 regedit.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 932 rundll32.exe 932 rundll32.exe 932 rundll32.exe 932 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1272 wrote to memory of 932 1272 rundll32.exe 83 PID 1272 wrote to memory of 932 1272 rundll32.exe 83 PID 1272 wrote to memory of 932 1272 rundll32.exe 83 PID 932 wrote to memory of 4684 932 rundll32.exe 85 PID 932 wrote to memory of 4684 932 rundll32.exe 85 PID 932 wrote to memory of 4684 932 rundll32.exe 85 PID 4684 wrote to memory of 4900 4684 cmd.exe 89 PID 4684 wrote to memory of 4900 4684 cmd.exe 89 PID 4684 wrote to memory of 4900 4684 cmd.exe 89
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\39ac6f78e012433fa9bf0e553cfa67e7_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\39ac6f78e012433fa9bf0e553cfa67e7_JaffaCakes118.dll,#12⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:932 -
C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\a.reg3⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4684 -
C:\Windows\SysWOW64\regedit.exe"regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"4⤵
- Runs .reg file with regedit
PID:4900
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
152B
MD5b100f5324ef74ded0b998e64d07a2e19
SHA140b0d7f51bf2dd8451f1b723d21355c471a5fa46
SHA2563db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042
SHA512c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04