Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
12-02-2024 05:33
General
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Target
2024-02-12_39f4110b0e047b10cc0380553f8deb67_cryptolocker.exe
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Size
88KB
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MD5
39f4110b0e047b10cc0380553f8deb67
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SHA1
8c1c66a71ad3ab2ae81ab140daf0451f5296b8d6
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SHA256
8c0ed1c396c42d3a8f2786c63edb46a0921e9592f236320cf42a565f2f88e303
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SHA512
c0224451ea6a7b64df78ebbbc48686a5d15b7db1cf1ebd639ab29c23ef7630d0e6066b11e60d450ebdd15b361fb09e8f963ee7a163d97eff7db7b6f88cd05820
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgdC:AnBdOOtEvwDpj6zw
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_39f4110b0e047b10cc0380553f8deb67_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_39f4110b0e047b10cc0380553f8deb67_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
MD5cc8317d284286d15034cdb11c260aeeb
SHA1abb78420a36609fd2e5fbe1e2978ded8ee717ab8
SHA2563237a1d722c66ec80193d3510efbb9e7d68d30366bf4ad2ccc4797efebb965d3
SHA512b59bfd484657c6969b70981c0789b226e33f3154d850c1d2ceac6f4f03fd6185904e5395775643f0a4d28b1536bbfd52b97bd422f8142030facf87ff3b9dfbfa
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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