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Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
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submitted
24/02/2024, 04:44
General
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Target
2024-02-24_5e39436a1d0b4cd15b18c0f0bff850d6_cryptolocker.exe
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Size
100KB
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MD5
5e39436a1d0b4cd15b18c0f0bff850d6
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SHA1
2ebf190f58732db492a765086d260f718e353a23
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SHA256
31e4bf5066891c87585c2f2bd739386b250933675cc2403458682e8f61e18530
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SHA512
c0b7b8b53331bc621e7ba608ff0fec6fe6efe1625618e36327b2b3912b00b95dd673f775e4a19dc607933560c6068417c3cfa3a594fa869ae501f8143b949a67
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPeB+:AnBdOOtEvwDpj6zl
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\2024-02-24_5e39436a1d0b4cd15b18c0f0bff850d6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-24_5e39436a1d0b4cd15b18c0f0bff850d6_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
100KB
MD5f1c51187e72c89c8902b0b6321afdef5
SHA195473a8d29cb981620e7810e673510fda605ddc5
SHA2565ef1a0ccb250ed180b83a6d05e6b5132379ac700c241cbe575e2cf493219f7f2
SHA5126ba9f14d636c23f0ab61c01b73fbe88e9e1f547a14b161e50358abf1246366bfdf86b37d3f770cd8b57578cd185ca9ca3d6aa3729f7208cc72df4ab3881bfa45
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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