Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
24-05-2024 14:18
General
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Target
2024-05-24_bfda8c4cb43449711376510b11a5cf20_cryptolocker.exe
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Size
40KB
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MD5
bfda8c4cb43449711376510b11a5cf20
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SHA1
a1869bc6bc407ab10f61448137f40e9d0d010db9
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SHA256
169b9a10f2e036694b4ba1d9b347d1738c73e12c05a56ee65e9198e5143db0ea
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SHA512
64ff214fb2a8cc865188237df15b051b45f36e1b01ceb39c27c73e751ee060bb9baf2072ec8650887e553a07b30478c7c1115c45bdb0bd05e9d66dc8516fa476
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY9pU:qDdFJy3QMOtEvwDpjjWMl7Tt
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\2024-05-24_bfda8c4cb43449711376510b11a5cf20_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-24_bfda8c4cb43449711376510b11a5cf20_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
40KB
MD5bf778b4853aca1e2abf684b2a8f9031d
SHA1fd8c45776202650e8368e123a1bcf6b858b5321a
SHA25677f34d5c8a841ba58a335fae011426258626b64fbf25079efc2e9d999372613a
SHA512d93dcdf4677fad97d051fdb84faaac7e0b3d8a0bfa86c9dc5c024610b052efffb852daf4580cf002d8a6951115c5797c031d0627a80332f435cd42335e11ca99
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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