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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
25/05/2024, 00:55
General
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Target
2024-05-25_523e411b95e2f1331142174133befc62_cryptolocker.exe
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Size
53KB
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MD5
523e411b95e2f1331142174133befc62
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SHA1
130faa5ac9ccb777c2d7ac8400e15dacd6083fe8
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SHA256
daac2ad5a32d4a6cdadf40998e9795a6c1489ad33290049653fa9f7060323f6e
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SHA512
ad8ff9349616186922d1b819a64d41e393e4b7d5c3d0b999e9fc59c13145bc3666d7ab74699e50e1b108944e0054ee8bfdb208c240c51ba8b0f6e803aaafc6ee
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SSDEEP
768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOkgr:z6QFElP6n+gKmddpMOtEvwDpj31ikgr
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\2024-05-25_523e411b95e2f1331142174133befc62_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-25_523e411b95e2f1331142174133befc62_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
53KB
MD500bda3fcb46c0c4e19cef86e56b5bace
SHA17d4e109ba5ea80513c4ecb8a4097ba4bd47cf25d
SHA25672c86859d056480b2137ece18c7987664797208aa7256b1521232bcabc48e341
SHA512522140b9e8466e609177a64ca69d443a72d82ae56420915532ea4760374c377ab371531e243ff99191009c0f307242f5dccb2626cfacd9d36805b9d956b83f60
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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