Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
19/02/2024, 01:42
General
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Target
2024-02-19_99cf265bfcdc606e7eec424693ba3738_cryptolocker.exe
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Size
62KB
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MD5
99cf265bfcdc606e7eec424693ba3738
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SHA1
83a50c9089b4fc1ccf8daa0a0de034e436be1f78
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SHA256
c58a25a4d00c0dba3232c97c9813d3dc6f1eb0666cf556aae59c83f876029b0e
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SHA512
d72900ef01d5df6358adea8a351967221c09e36b4403a4c37eb6db2837d1697bfd4f09be3f30af914dc369d803cdcb26177695361ac1463317910f52de064a8f
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYZ8M:1nK6a+qdOOtEvwDpjk
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 4 IoCs
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UPX dump on OEP (original entry point) 4 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 4 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\2024-02-19_99cf265bfcdc606e7eec424693ba3738_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_99cf265bfcdc606e7eec424693ba3738_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
62KB
MD57340135fc85db5a113a994734ec46460
SHA16d35ee8176f93315e5d1649d2662edd4e7295d17
SHA256bbbb06dd888cb5826cc77d3213723c1b67701ce6ec85b2ef8159685afbd81ba3
SHA512d8da0a08f23f8f9ba1f00769df278e6d8b6e3e7ca41acf5850cd5e5a9f8f65cc178a347f3b3938e4b2dc407e23c3a0f664c9285dc31a5340ab64db65b9b28499
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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
24KB
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Filesize
24KB
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Filesize
60KB