Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
11-03-2024 05:32
General
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Target
2024-03-11_34513ccb609bdf021b1929df22c34df0_cryptolocker.exe
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Size
65KB
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MD5
34513ccb609bdf021b1929df22c34df0
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SHA1
bf57f02d48b68e2c39764691d548324f3ea348db
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SHA256
f245184fb9c9b425f699ceb775d69d219b8d3ec7133021cb20846e48744e39a4
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SHA512
57a964dc6d1ed64609c259acd76680abc756029cad0a0214f2b930c0c5b0dc4d91c1a247d569343093da1b00c42b362500444f268088db0c6284ebb663ee820f
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYjc3CB+:1nK6a+qdOOtEvwDpjs+
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\2024-03-11_34513ccb609bdf021b1929df22c34df0_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-11_34513ccb609bdf021b1929df22c34df0_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
65KB
MD51937945f628f26943e0f62fcd42f1398
SHA181faa5e7cef314403c71e36bcbc188cc7cea7e6b
SHA256858f25d78f1d2dc7beaf339e3d0568f6987c0e6fdc5929d75e68774a66e3dd4b
SHA512f72d1b8df0d3622d0e59b6ba83c0bb09bf1fbdd0880fb1057bc8d12c00e7a15ce8e6a110f1566718d57c5f7b161f441a9cb86cdf21d1bedcf819df6ed982bd05
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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