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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
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submitted
30/04/2024, 02:52
General
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Target
2024-04-30_a20b0bff9547a4cd3b07441c6e1f08eb_cryptolocker.exe
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Size
64KB
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MD5
a20b0bff9547a4cd3b07441c6e1f08eb
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SHA1
789e050005769a715b3b199c63a3dfc9aa2a1286
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SHA256
1285802afe2aa367443cf49cf03c7a11139d200e3fd2c9bb53457dd8b4152f4d
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SHA512
d51705967d47a1990efe3da01b5d952c5e3ca91bd2cff6105bb606c2cae0aafe88659a2c25d7006b7f74ed3e11fb0a33e9720db6fa2943ca825ed42d1e19d3a9
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAo3:1nK6a+qdOOtEvwDpjZ
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\2024-04-30_a20b0bff9547a4cd3b07441c6e1f08eb_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-30_a20b0bff9547a4cd3b07441c6e1f08eb_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
64KB
MD5f215f8ab9b0fdda0bd7642e8f8862d64
SHA11687bb4cd949468f82d93698c11a2f3d4dbd71a7
SHA2563c15d787793a89c21becee9e05a36396f6568813bc0eed8f8276cc73b7c74c67
SHA51265a1f6f83452c7fc7bfa98e7becb5508734168f02f6b2be7958074cc5dadb6dde95c6d123708dec14fe24567363597195abb9645914ac8dc14627df46477c403
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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
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB