Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
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submitted
25/05/2024, 05:39
General
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Target
2024-05-25_ac07b6f4a8e4a90d8ab3caec305e9ff4_cryptolocker.exe
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Size
60KB
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MD5
ac07b6f4a8e4a90d8ab3caec305e9ff4
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SHA1
3baa090af01cec5b961919bc1eea2ec9e482b5f4
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SHA256
2fe618caac5c30ea1e7ce349bd8790172a8c44a032b81e3c13ee345b6c28bf15
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SHA512
7091af1b69c610f8372a8bf715f351d2e96907b0e47a6f873dbfb104bc09d954e7f0ce07880e4634dde68e4dcdd3e60f9266db836bfed53e26a3df8cbba66489
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SSDEEP
1536:z6QFElP6n+gKmddpMOtEvwDpj9aYaUf3o:z6a+CdOOtEvwDpjQ7
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\2024-05-25_ac07b6f4a8e4a90d8ab3caec305e9ff4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-25_ac07b6f4a8e4a90d8ab3caec305e9ff4_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
60KB
MD5c82593c94464a862e3f675b4b22b3c49
SHA12b7eab712d1ed51600a26a2cdc6cf27cf11e43cc
SHA2566257a9371fe45137e9ac01c1d72d9aa12d60cfe95e4e89cbb37a4d27e1e83f56
SHA5125c3164ac45978bc95b3ee99514e1232001eb9d270332ddad6fd26df165d1943168f2ee68f576068171d338eb324bf17e75551230670b7de3bc83e174b0d331af
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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