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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
07/05/2024, 04:27
General
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Target
2024-05-07_2b99f68d2c98486b9ad788fd75d433d2_cryptolocker.exe
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Size
38KB
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MD5
2b99f68d2c98486b9ad788fd75d433d2
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SHA1
04dc7081c6639e8d637870643f017690934ab974
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SHA256
9c396fae99cb452cd3f7510d6899a6b25c08ee6cbd227de00a9f9c3c37228dce
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SHA512
40454063a422671d1cd87833374c1f321711e87a7da954812cfe7fe467f8a1ba255a666908fee81bb892a45fb609190395b6cb7bb4b04a5c676388b4205bc867
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYfFM:qDdFJy3QMOtEvwDpjjWMl7Tj
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\2024-05-07_2b99f68d2c98486b9ad788fd75d433d2_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-07_2b99f68d2c98486b9ad788fd75d433d2_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
39KB
MD5508487c37bcc5b7c1e654045e031215c
SHA1e5fa92bdea87d21b6048aed6c71cd1f2170c5d03
SHA256658755ebb33d924bf76279a5efb5bb6d46234c9a4fbbe852f5e9306b1cfb3c83
SHA5129723ce711f83072a573d0796d26e07fde70fce3f9456279ec1f18dfb0ab5bb3ab12866766e7c36876211d69022a1ba98b0e6ddc71fa3f13a859945e0b775ce53
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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