Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
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submitted
27/01/2024, 04:41
General
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Target
2024-01-27_ef9ae3c4d2b2db3984c044d8f65a7d07_cryptolocker.exe
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Size
55KB
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MD5
ef9ae3c4d2b2db3984c044d8f65a7d07
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SHA1
e7354120f17fb42999968ca096a43fdcb555546b
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SHA256
cbcd7f3aa033f5d96b18574f8152a49862da2331dd350ef493ad0ba298f0d52a
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SHA512
5e50376a5994b4088c5da2fd4d6c8854ef795804f53b12bb05a9f4d483d9f24d4f10678fe4b89b568999ea24d088afb8d6fda81326e574918e1b6cc4f432e411
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb616A:BbdDmjr+OtEvwDpjMh
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 2 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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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\2024-01-27_ef9ae3c4d2b2db3984c044d8f65a7d07_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-27_ef9ae3c4d2b2db3984c044d8f65a7d07_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
55KB
MD552b73f50342fe30f21cb3082f721c527
SHA149e1e39da317cef450e67dd254f8ed12a7d0dcd6
SHA2564ceab18772ab5839a3c926eeac0d8c170154136a58a6423cea44e0a5b7a72d18
SHA5123dd208ee382e4a15bed8111b0b3b8f306cfe19c8f6983e4f72df333523196d3c864b8137329b8348fee7b41507faa7c038dda3a2f77b8194e8be0d76daf8f9c8
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB