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Analysis
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max time kernel
148s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
12/02/2024, 04:11
General
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Target
2024-02-12_3f062d0ac36c9822b851dddf9d52979e_cryptolocker.exe
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Size
88KB
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MD5
3f062d0ac36c9822b851dddf9d52979e
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SHA1
be0f09a1b431d42d10e20409fd7f3698f3fb7b45
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SHA256
76768dc797b14f1821c10e50dda85cbe2db01c19fe7e80b69930059ffe58d413
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SHA512
a8fbe56076550b17011196ab05af8c785039ff7778ed79228b6cac3866cae90e28a2920d568d53732758fcf7595c402e80877ad94604a828ad568b3a44bd459c
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgkD:AnBdOOtEvwDpj6zS
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\2024-02-12_3f062d0ac36c9822b851dddf9d52979e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_3f062d0ac36c9822b851dddf9d52979e_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
88KB
MD58bd0c6e83009cdc3daef0ccd91f61ea9
SHA18d302eb9f68a6ea9d8517e2caac423cd094e2fda
SHA256c9c6efa23ea8c07d59c200df56929e5ec5f70fa28f728ac6352e02baf9619bb0
SHA512eb589ace398fdc0e8b57bf800a26767d99b18d90fceada74b39f8c5d021e79df6b7a1eed2ce83c37b0001a01be7ff9571640319bd7d18f326ae1445da7944cc7
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Filesize
60KB
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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
24KB
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Filesize
60KB