Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
28-02-2024 06:10
General
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Target
2024-02-28_3a09aa164ac5e2ecae079f170e6d49fc_cryptolocker.exe
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Size
68KB
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MD5
3a09aa164ac5e2ecae079f170e6d49fc
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SHA1
4d93ce4069fe8b44f366a8d28414ef7848b4e48e
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SHA256
2d7f75667e181cd750445c565c3481686b89c61275b51e8610624bc7f998ef7d
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SHA512
d2f335af72e78bbe5d144a89e5c3c18845a3694c3e48e06088c5551d39dcc785d0f7bc4f6f56c27bbe000618764defb2e5d7f12d623e8e16efaa62b13abcaed1
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SSDEEP
1536:z6QFElP6n+gKmddpMOtEvwDpj9aYaFAeBT:z6a+CdOOtEvwDpjQB
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\2024-02-28_3a09aa164ac5e2ecae079f170e6d49fc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-28_3a09aa164ac5e2ecae079f170e6d49fc_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
68KB
MD5b338e134269dc728b139825d773be0b1
SHA1964a3c295777f299672fbc3aad6ee550c32855de
SHA256736b68122c537996463690dd7d32a42900dc9b562b2733e5199b31a77b036cfc
SHA512f7c1294e102ada85b35407876782f325af43de0e24af06c6c4508e7db67b2e8625be5b11c358603a45a4c2d4ae56b4d5c0f41d6b5e84cd94fc5c259dd79afc91
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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