Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
08/04/2024, 16:49
General
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Target
2024-04-08_f7f560b82a1c53147a51d5e35c44aab6_cryptolocker.exe
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Size
128KB
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MD5
f7f560b82a1c53147a51d5e35c44aab6
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SHA1
3b724ba00e0092ec90286f978cc622611a0b2438
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SHA256
a46b04fa6407888819857919de1dfa4ed60b16de024f899fe3efcdd637c3e2c4
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SHA512
a2718142c7cc553d5ca4d189f8e3a612401a104f84ad32650bccc1f91d41b6f19014c5b1693adfacd8e3e7d40bb9bd32c977ee8a9bc6a94f38067112654ced72
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699GNtL1eI7r:AnBdOOtEvwDpj6z+
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\2024-04-08_f7f560b82a1c53147a51d5e35c44aab6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-08_f7f560b82a1c53147a51d5e35c44aab6_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
Loading Replay Monitor...
Downloads
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Filesize
129KB
MD528b75e2d8117c927bb6bc47e53cd3aa3
SHA11770784a1dbee3f536a1b5426dbc12b6cc13090b
SHA256208b4564507375e4d4ea4348ad2a268eea45ec4bf732bc40b770a51ba3e5f569
SHA5120a45a4f3c612cf28c5a7d9cf56571614f9034604210fe2cf671e5968d20c8c988d1277d41913d7b2068a8159f01c865e40dc025d8a960c199fb1e7c427253191
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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