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Analysis
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max time kernel
155s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
18/02/2024, 03:40
General
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Target
2024-02-18_77604a2c7a05bd854b81a9e27c5724f7_cryptolocker.exe
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Size
65KB
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MD5
77604a2c7a05bd854b81a9e27c5724f7
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SHA1
16140367d6c298578822ba45c537ace625c0aa96
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SHA256
8bca1ff5a4aad33378ef7c26187297cb0f85805dd5b726751ebc7d2c2a751b90
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SHA512
16f7b80b79e51ac533fdac4971e8525726abc76097c0999dbd7f11986facaa4cb6634af5a2c341b4465c2fa050cfc143e6cdfecb3345a646dc128e2569a3efc3
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYjc3CBX:1nK6a+qdOOtEvwDpjsX
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\2024-02-18_77604a2c7a05bd854b81a9e27c5724f7_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-18_77604a2c7a05bd854b81a9e27c5724f7_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
65KB
MD5ed9b576e2efa9bb55a7b69f09736061a
SHA150e49fbf5bb7f6803f02d2334d1fd54018706d08
SHA256b9dc6b31ae8e1547e7e046e984cedb957b4283a665da318b436197e6a7e5eede
SHA51272c981269893877b157ec5f25ddf20556e606ffc700156cd548e7a1919f4f56f1c11f7b0689db32cf96cbbdd0da2b9621c2ce6fbc59e8e4e5d521941d2053e0c
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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
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB