Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
14-03-2024 15:41
General
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Target
2024-03-14_821d964c8858560f13f6efb653543f98_cryptolocker.exe
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Size
63KB
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MD5
821d964c8858560f13f6efb653543f98
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SHA1
394b180916231850bfc2e86a28830033a2570d51
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SHA256
7266defaddc8c225899cf81cdfaf4c5b39882d120e3c4b10a285ff12038687cc
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SHA512
7e14847dba1604d94fe962bc9da9798e5d39f2519730ad31b9f5b49853124c09329bec13f62c5ec0f52283d6aeba247f01445cf575be990063527d2f59a2a5fb
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAo7cz:1nK6a+qdOOtEvwDpjY
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\2024-03-14_821d964c8858560f13f6efb653543f98_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-14_821d964c8858560f13f6efb653543f98_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
64KB
MD5ffbccb965ac69210d73017a41201ecbe
SHA1f4066c77172472672f26251c282bb2cb8eff57e9
SHA256e852a153823fc53304f1735b921bde1aea583c44a2a9b50ec4f8625d6d0836ee
SHA512d6e6f68e8da3c709f25c881b9d6edd172d5c009c42b63e4dfd47317a991d5fdbe4026225fbc9dfc00df601feb3217758d2e1e2484a76cae08cedbff6c4420fbf
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Filesize
60KB
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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
24KB
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Filesize
60KB