Analysis
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max time kernel
141s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
04/02/2024, 19:40
General
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Target
2024-02-04_c772eacb81086e01bdfedeb5cb1afe8a_cryptolocker.exe
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Size
63KB
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MD5
c772eacb81086e01bdfedeb5cb1afe8a
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SHA1
071b151748f93fe86410c453ec3ecc9170f3fc77
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SHA256
46ba8ca6e66b212f4d91b77044ef8ff85c9a7e2fc4dc8652323bb8751630eb7d
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SHA512
d4764aeb5e378effd05b4c8ca967863ac5273ba42aaded0a0401961799672a6811b8cc0c5ee04eea1e38b12ca7584b981770e810896e7f5d1a2eef042790829d
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjY6UX:1nK6a+qdOOtEvwDpj+
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
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Detection of Cryptolocker Samples 5 IoCs
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UPX dump on OEP (original entry point) 5 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 5 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\2024-02-04_c772eacb81086e01bdfedeb5cb1afe8a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-04_c772eacb81086e01bdfedeb5cb1afe8a_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
63KB
MD52984813935e2bd2c0503379e90c8d411
SHA1b35ee42014887921bd321c092f293294c4ae27a8
SHA256ff4be929a86330bb624f259b501af2195e2b16fc653f97fbb8592a893f8eea58
SHA5122df7d58d42b5a8f3ffa38655af4923f0f6236634ffe148fe1707e21c758e985adcd8d1131526066a1b8bd4c6f05768335e0ac315aafae0d306514db50acb36a1
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB
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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