Analysis
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max time kernel
130s -
max time network
101s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
28-06-2024 12:59
Behavioral task
behavioral1
Sample
1a35caea333db3be203aa25000987fb4_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
1a35caea333db3be203aa25000987fb4_JaffaCakes118.dll
Resource
win10v2004-20240611-en
General
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Target
1a35caea333db3be203aa25000987fb4_JaffaCakes118.dll
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Size
60KB
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MD5
1a35caea333db3be203aa25000987fb4
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SHA1
78e9e37bdd53fca3e22adf6d4c5824f8d25fa183
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SHA256
ac2afda9e5df38f43680fc64b6718167593d940d9c1986037d128b459f42c327
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SHA512
eef8a1f6ee8838aa2cd87f91df2bfca6e6033ec95a8328de9c6578ff2326ab5381c7de597d9874664688e1a83a9dbf31d14b99135b70d479155afffb98abab75
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SSDEEP
1536:iJiYU3BupCdtWMrd4IJfzc5TOtnVxhxMU:iJil3BaCdtWxSLMTOtVxgU
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.
Processes:
cmd.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation cmd.exe -
Processes:
resource yara_rule behavioral2/memory/1844-0-0x0000000010000000-0x000000001000F000-memory.dmp vmprotect -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 2 IoCs
Processes:
rundll32.execmd.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000_Classes\Local Settings cmd.exe -
Runs .reg file with regedit 1 IoCs
Processes:
regedit.exepid process 2488 regedit.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepid process 1844 rundll32.exe 1844 rundll32.exe 1844 rundll32.exe 1844 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
rundll32.exerundll32.execmd.exedescription pid process target process PID 2236 wrote to memory of 1844 2236 rundll32.exe rundll32.exe PID 2236 wrote to memory of 1844 2236 rundll32.exe rundll32.exe PID 2236 wrote to memory of 1844 2236 rundll32.exe rundll32.exe PID 1844 wrote to memory of 2220 1844 rundll32.exe cmd.exe PID 1844 wrote to memory of 2220 1844 rundll32.exe cmd.exe PID 1844 wrote to memory of 2220 1844 rundll32.exe cmd.exe PID 2220 wrote to memory of 2488 2220 cmd.exe regedit.exe PID 2220 wrote to memory of 2488 2220 cmd.exe regedit.exe PID 2220 wrote to memory of 2488 2220 cmd.exe regedit.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1a35caea333db3be203aa25000987fb4_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1a35caea333db3be203aa25000987fb4_JaffaCakes118.dll,#12⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\SysWOW64\regedit.exe"regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"4⤵
- Runs .reg file with regedit
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\a.regFilesize
152B
MD5b100f5324ef74ded0b998e64d07a2e19
SHA140b0d7f51bf2dd8451f1b723d21355c471a5fa46
SHA2563db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042
SHA512c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04
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memory/1844-0-0x0000000010000000-0x000000001000F000-memory.dmpFilesize
60KB