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
12-02-2024 10:28
General
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Target
2024-02-12_ef9d94c5994fd403b5df091e2bffde0f_cryptolocker.exe
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Size
116KB
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MD5
ef9d94c5994fd403b5df091e2bffde0f
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SHA1
5a068d0f62746d15bcdb3e1aa74472cf78cedbf6
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SHA256
c0046eacc19a914dddd383769376bcb24b0596705d3fb5bd97cc6d2b70f39da3
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SHA512
3cedb17db2575c2e223dd7b170f0e8ea8a824f611675075d51f99b7b09bfb05d387d22332a7b6c4189515f4ff37470a49fbbb7628f9b1e7e511cadef05c556c3
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SSDEEP
1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgp01q:z6a+CdOOtEvwDpjczc
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\2024-02-12_ef9d94c5994fd403b5df091e2bffde0f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_ef9d94c5994fd403b5df091e2bffde0f_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
116KB
MD530ae50eb691b0cd944b56299e98845cd
SHA14a565b8184bfe8087f8b2c340c27561ad968f2bf
SHA25687a722fc2fbdc969fb72781893e1d1d8ca85b5ed1acfb9ad05745e8502d4e1a8
SHA5125dfbf9de3d2e0beca1e720ef226978bc175cc5a8e1a0af1eb806ff99f2f2efd4fc846b1d173fb5cb496d1948c3f373f77ac1557c4a89edca75f46f967b3ddd19
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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
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB