Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
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submitted
20-06-2024 22:46
General
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Target
09eb557b04c1816b27f2e7b77aa49c04_JaffaCakes118.exe
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Size
911KB
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MD5
09eb557b04c1816b27f2e7b77aa49c04
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SHA1
9d15567404b0bfd2d2cb7c8125d8ecacd4597de9
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SHA256
b3a9abdc95546324e5c97b29401fc2623f030799dcfb6ec46d8e62970ec36c6c
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SHA512
18c7e4730d51c55fd51a3d089db7914079743fec4999d03d13f5163093eb18b214fb1e9f68ee83b5a336412f2399ee4d4a8632c726ba003587b6d700d95f913d
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SSDEEP
12288:+8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1r/:LUKoN0bUxgGa/pfBHDb+y1L
Malware Config
Signatures
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Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
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Modifies security service 2 TTPs 2 IoCs
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Windows security bypass 2 TTPs 2 IoCs
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Disables Task Manager via registry modification
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Windows security modification 2 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
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System policy modification 1 TTPs 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\09eb557b04c1816b27f2e7b77aa49c04_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\09eb557b04c1816b27f2e7b77aa49c04_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵
- Modifies security service
- Windows security bypass
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exeFilesize
911KB
MD509eb557b04c1816b27f2e7b77aa49c04
SHA19d15567404b0bfd2d2cb7c8125d8ecacd4597de9
SHA256b3a9abdc95546324e5c97b29401fc2623f030799dcfb6ec46d8e62970ec36c6c
SHA51218c7e4730d51c55fd51a3d089db7914079743fec4999d03d13f5163093eb18b214fb1e9f68ee83b5a336412f2399ee4d4a8632c726ba003587b6d700d95f913d
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memory/3028-15-0x0000000000400000-0x00000000004E5000-memory.dmpFilesize
916KB
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memory/3028-16-0x00000000023F0000-0x00000000023F1000-memory.dmpFilesize
4KB
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memory/3028-18-0x0000000000400000-0x00000000004E5000-memory.dmpFilesize
916KB
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memory/5116-0-0x0000000000400000-0x00000000004E5000-memory.dmpFilesize
916KB
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memory/5116-1-0x00000000024E0000-0x00000000024E1000-memory.dmpFilesize
4KB
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memory/5116-14-0x0000000000400000-0x00000000004E5000-memory.dmpFilesize
916KB