Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
04/04/2024, 20:33
General
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Target
2024-04-04_9775a363c84e02b55a8ad9a84a4c7dd9_cryptolocker.exe
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Size
89KB
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MD5
9775a363c84e02b55a8ad9a84a4c7dd9
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SHA1
d7eaba5102396f3b1e1bd5b848d5600cfd80fc58
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SHA256
68e1cf7fde5907d6a514789e004848b98a20de4b24d95baa87cb716da079aca0
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SHA512
ccef79020d3d4d97f44b83b5c1202c62b65c05b71feedec851cecd6778abc27a91fd0e2471de31f9a524a55f814609a62748c700b0be7077a8fab711272d275f
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgS87:AnBdOOtEvwDpj6zf
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\2024-04-04_9775a363c84e02b55a8ad9a84a4c7dd9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-04_9775a363c84e02b55a8ad9a84a4c7dd9_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
89KB
MD540f27789e60ccd89f34531720db61380
SHA1d12109274813fe3abd764a359f52c89e5eae686b
SHA256b18cf539c59e996631cbb1be1d3f216ac46dcaa72230c68a193d389e60f8a4ca
SHA512aa7b5312e46e1d78d48ffb06fc5e86fc67dbd8e0e0d23ac933eeee8bdba6b7a70bc80b03f9b3fef74c00181627427551e4bcea793215937a199072178cec5d45
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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