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Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
31/05/2024, 05:27
General
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Target
2024-05-31_4aa3e5ad6eb2be68f60efcf9ae254112_cryptolocker.exe
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Size
40KB
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MD5
4aa3e5ad6eb2be68f60efcf9ae254112
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SHA1
4a3bfa40e0dc36a97b6af1e22e018f61669594f1
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SHA256
f1a48607094cd965ac8cb221abc935a8a96f99296cf8e262a338888e7b2ccdc8
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SHA512
2107a1bb05fb4d5f43765cc23d1cb050c1ecb131d9af186a0063a4614a67336db425300ed1a4c6498c1b7a255b0f2033c0ccd07235e309b85d8ec5fd37916a00
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYan8a:qDdFJy3QMOtEvwDpjjWMl7Tdn8a
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\2024-05-31_4aa3e5ad6eb2be68f60efcf9ae254112_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_4aa3e5ad6eb2be68f60efcf9ae254112_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
40KB
MD5cdf332e53877c0cddd21b533bd90ca6e
SHA1219682cabf59626b8538ad96b1e836fb285bad86
SHA2563c4a35be48660e0669744b1d9e0b8d046466b055f6dc28b4b98a46d6b47ed600
SHA512545740a9259b1bcb25f399ae99b23fd509f6f3a03b3a46b1345bd02c0fd815da9208dcbd9631998d6e054fa5adeab458e67d336320da9806baff7a89007a96cf
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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