Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
03/02/2024, 11:28
General
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Target
2024-02-03_5153d90af37d0aca1dfec4b35680190e_cryptolocker.exe
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Size
104KB
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MD5
5153d90af37d0aca1dfec4b35680190e
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SHA1
6738203fbce87354ee099f10dfb4d10ba5a96683
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SHA256
4755d2466b59a6c98b87d0d5e48310899c40d94be7d22a574dbabdd631dd9dcc
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SHA512
8bd0f03fb33033d63793cd4bb68f2e7c67a58fa26c6262264c17ef95c8bb419adaddef74e74ebe8b194484c11881c68713ce39c2109c36085004570b6448026f
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5iF1j6GksueR:1nK6a+qdOOtEvwDpjH
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 4 IoCs
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UPX dump on OEP (original entry point) 4 IoCs
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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 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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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 WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-03_5153d90af37d0aca1dfec4b35680190e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-03_5153d90af37d0aca1dfec4b35680190e_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
104KB
MD542bd9a63ad84d8b8084fb1d8151e1963
SHA1a7bd04a2d3d71261233bab651dc087869b4e2ffe
SHA256bafc750c57ca7f53718127f0bef56c6450cf0a6fcf8d58e60881bd531f7df718
SHA512aaad18101cf96aae0b07f4424e6bfffe667d17b768434d0f7fb59ace51f857accf386682adbf87fec91b16a9824c40151aae3fc462c3278f86022582f2828ffd
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB