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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
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submitted
14/06/2024, 13:58
General
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Target
2024-06-14_b4ebc701cf15ee8ce2d2e755742859a1_cryptolocker.exe
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Size
39KB
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MD5
b4ebc701cf15ee8ce2d2e755742859a1
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SHA1
ff77ba6f6a6c9bfeb69d8a8a40a4ba987234c900
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SHA256
5ed8bcccd96582cb3c4404c3ae9ce872034ed635b831ac03fefe9d3729723723
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SHA512
3aae81756a3bad3ddc55f6a3fb921c145b9bedb36db8f6f63dfa88dc5d80386e135e35c01af1079cde283e7b626b26e2ade7e09426b369b60b9c80eae394eccf
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBsYG:qDdFJy3QMOtEvwDpjjWMl7TdvG
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\2024-06-14_b4ebc701cf15ee8ce2d2e755742859a1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-14_b4ebc701cf15ee8ce2d2e755742859a1_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
39KB
MD5449886dc6295cf31868fd37994326572
SHA1dbbfa26d8163d476ce53e40d57227f28b3243141
SHA2568950ae765264c97f556d2bf6fdf7a05a752eaf4915fb65e32508f8c8ed392db1
SHA512aa328c2733065202933f9c534e0d3620a4fd636f8ead56f06325353671a0da7689a03ef092ab1a3bc9b23931cad576b6d68cce41841c93e44a9c2bb6b2cad760
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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