Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
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submitted
02-05-2024 05:59
General
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Target
2024-05-02_ca57c4a86ff4be1368803996983d3024_cryptolocker.exe
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Size
90KB
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MD5
ca57c4a86ff4be1368803996983d3024
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SHA1
99114ddcd085dd0d9c260fffa51ec2426e8b4880
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SHA256
d8f7ba36b1d845382eeb1b7fe8368c04ba8777d35382d8c97480336990e0047c
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SHA512
89331fc020da72a274a799e3d34e6aa961278672ec8f7b81d48b3c84ebcd8214bd67c05b617b4a940e51641145bfaddde2820236d133120ab9952e8fe7b2b64b
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgdd2:AnBdOOtEvwDpj6zK
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\2024-05-02_ca57c4a86ff4be1368803996983d3024_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-02_ca57c4a86ff4be1368803996983d3024_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
90KB
MD50f3faecffeefea549a1983669c371f11
SHA1b7e4c5b46da83eb009ee380d87c4778039df9b6b
SHA256e88f5e5528e21da66af201aba70485f7612d748c8490a29d70bb30b60dbc3b81
SHA5121bf0e9f50850e7364f42e232084b51d1093d22bb5c00115a8a447beeb3c99d0b4e54502a79563bae090ec326385fd4dab54434d6c12821ed3605b47a9bcfd4df
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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
60KB