Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
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submitted
31/05/2024, 17:54
General
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Target
2024-05-31_3cfe8bf34c1ec44da6111406e79410eb_cryptolocker.exe
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Size
67KB
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MD5
3cfe8bf34c1ec44da6111406e79410eb
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SHA1
7cb846170b26091f9e8fc9a418d3f132479d1cc2
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SHA256
8f937fe8a26504ca263b1e982a8192c95221cdaaa8dde128c139f37f09ac1f12
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SHA512
3d7c4f00b58ce5048dfd5702e3ffd263f46631b3e9695dd4260c35e7c9e6cae827ca0f87e546322bac5c0b61d6d84e00e1e6903e0656ef15e28bf98fb1059d61
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoQRS:1nK6a+qdOOtEvwDpjL
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_3cfe8bf34c1ec44da6111406e79410eb_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_3cfe8bf34c1ec44da6111406e79410eb_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
67KB
MD5578882638da7af64a633e580518dafe1
SHA19001c345f050aceb694fab42db67c40a3c2aa5f4
SHA256c606ca34b126406e37118af59a341a756d0f5f64cbe619f7de4f3e293f507557
SHA512e4f8c91519a48709282327eb9ce058a67ea7ac4200f96ba961d68d6d6628ef6ad7895623b51d5f6af05af7f8ce23106400126b91294f614abc1b60db16ca5361
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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
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB