Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
22-04-2024 17:46
General
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Target
2024-04-22_7afc322bcd8d5a20557f39d824feb6d5_cryptolocker.exe
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Size
77KB
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MD5
7afc322bcd8d5a20557f39d824feb6d5
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SHA1
55453b8dfcfa0cac88dae5cdfb871e724ff49886
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SHA256
bcda863bf78d7788c15c4c12acd0fa67f4b9ba9e80980688df852eea227a3a46
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SHA512
36180970c0780eb6682bf966767729b8a99276d51419edbeaad9cb3989617f70fa78b14da7a365c8cb53d48e7136b411278527a58eae26afa781131f2112a9b9
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdJcRF:T6a+rdOOtEvwDpjNtw
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\2024-04-22_7afc322bcd8d5a20557f39d824feb6d5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-22_7afc322bcd8d5a20557f39d824feb6d5_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
77KB
MD593dd46c7f10619f3fb9ad06aa95dd4b9
SHA129aee7c84ab3712195c51913abf6fc6b56967994
SHA2562bc6faf35db8b055b934a695607909c327123a896f31eb2cce04e656c4ea8d58
SHA5128b6a9b5eb17d1040eee6f2bfc4c7a7566144715ca223f0a58b183ee4558701bccb9d11963f8d40fa08e9c5ea2bc53583982881518bdf998c42ee40bccaba4f62
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Filesize
64KB
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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