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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
13/07/2024, 07:43
Static task
static1
Behavioral task
behavioral1
Sample
40c9ec09300645004af4ce1b5594901e_JaffaCakes118.dll
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
40c9ec09300645004af4ce1b5594901e_JaffaCakes118.dll
Resource
win10v2004-20240709-en
General
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Target
40c9ec09300645004af4ce1b5594901e_JaffaCakes118.dll
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Size
36KB
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MD5
40c9ec09300645004af4ce1b5594901e
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SHA1
e48edd5ce62db95592c6dd92cbee66eebabd0c22
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SHA256
8e6e70cfd53cb4c611302cc01b910f642c6334e63f605aa319c003cb44d5af5e
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SHA512
290b09d0bdd7a6cefd7eae97be818f91fdc2eaf5da80a0cccae906b9d10b8ba49b0c9fd7f30ae544008e69c344e942af14197f6481ed7ab742f81e541a36c7cf
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SSDEEP
768:jt8dldJN5LXcyXrCD1tDMByGqnXm3+AVWEvaLW:EdzcyXrC/GsnXiVWEvaLW
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 1120 regedit.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 720 rundll32.exe 720 rundll32.exe 720 rundll32.exe 720 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3456 wrote to memory of 720 3456 rundll32.exe 83 PID 3456 wrote to memory of 720 3456 rundll32.exe 83 PID 3456 wrote to memory of 720 3456 rundll32.exe 83 PID 720 wrote to memory of 2964 720 rundll32.exe 85 PID 720 wrote to memory of 2964 720 rundll32.exe 85 PID 720 wrote to memory of 2964 720 rundll32.exe 85 PID 2964 wrote to memory of 1120 2964 cmd.exe 88 PID 2964 wrote to memory of 1120 2964 cmd.exe 88 PID 2964 wrote to memory of 1120 2964 cmd.exe 88
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\40c9ec09300645004af4ce1b5594901e_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3456 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\40c9ec09300645004af4ce1b5594901e_JaffaCakes118.dll,#12⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:720 -
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:2964 -
C:\Windows\SysWOW64\regedit.exe"regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"4⤵
- Runs .reg file with regedit
PID:1120
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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