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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
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submitted
02/05/2024, 19:51
General
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Target
2024-05-02_638ae54d94461b28936e5e4c514c2a64_cryptolocker.exe
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Size
38KB
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MD5
638ae54d94461b28936e5e4c514c2a64
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SHA1
90535605164dd8d22f3a19399238346072329df7
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SHA256
1c3b9bac9d428081b45f7afb0f24e67e575851ee29b7153c20cc7112b970647e
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SHA512
368bcb77d8215e26bff60929d65578a5a032ddfc1e6ed13faad75db473c8e50c784917a41897958626cec0f91abbc5748398ec7d1cff0a47328b494de850c5c9
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY9iSh:qDdFJy3QMOtEvwDpjjWMl7TK
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\2024-05-02_638ae54d94461b28936e5e4c514c2a64_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-02_638ae54d94461b28936e5e4c514c2a64_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
38KB
MD5935a0196f3b6dade77abd14fdf0e3878
SHA1136b23f81e48aa27445f87561b7d087361878cd3
SHA256a90710fcb6b0ffc4d4f0128fb563890012119eda592e0bdd3e9ab058f633d1db
SHA512b52368610bcb839e9c6d522cac449222e158e61c12e4982f79f910f3a3db99db2a1f6911951dd462177394454710ae03fc4738477c9f155b644b494792a6f787
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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