Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
08/03/2024, 06:14
General
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Target
2024-03-08_b7def15b2fc6872f6bffdd8b14670618_cryptolocker.exe
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Size
88KB
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MD5
b7def15b2fc6872f6bffdd8b14670618
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SHA1
81af3d3dc0ba1ec5e446c2f1f51f66fcc5a5c82a
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SHA256
b1ae3175dd44db05d8fb6701650eaa92752274e53aa801a95266d59813f56d47
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SHA512
d6d31d3e7f7d7f9c5b624c02f22a2ea44b85199610f2865da0fa842ac0a99b4303dbd45c1b0d1d464dbd6a1a248791b81510b82cbe5e8947cdd3c0102415518a
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SSDEEP
768:qkmnjFom/kLyMro2GtOOtEvwDpjeY10Y/YMsvlMdwPK80GQuchoIgtIJ/q:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgv
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\2024-03-08_b7def15b2fc6872f6bffdd8b14670618_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-08_b7def15b2fc6872f6bffdd8b14670618_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
88KB
MD5fd7bd54bdcc0058bc866b1ad3a39a491
SHA156455700f551a50da6fc0cdbbe591ec21317df7a
SHA256405d9bda9d42f14d446572c7c52e5aaa17a4cf2dc6e46c26f1cae4ca388a2c92
SHA5129024756c511bdc95abac58d56f3946d9c52e3fb33ceb05ba6a653546ebe66197a7b32992a14fd0791ca309d38401bc926069cdf4ec4cb52bda3e3cecb06d7210
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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