Analysis
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max time kernel
150s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
25-01-2024 08:35
General
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Target
2024-01-25_9fcec53986a5ded7f59f8b99f77c53c3_cryptolocker.exe
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Size
86KB
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MD5
9fcec53986a5ded7f59f8b99f77c53c3
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SHA1
303f9211c76b5da6e19eec3a80d5fc059999a42d
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SHA256
54b262f4e8128a9bbdfba5f8f7b64ca7ca6571c23c002bb9ab9a07dde4631de6
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SHA512
f5833f067186e1fd6e3f3f9ef366c1ea22c3d7f1492342d58fe20f4a2be3c0758b95fc63fc90d4931ab4151e29a462962183b556ecf03ddd7715e4ed4d4ea51b
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMg6l:AnBdOOtEvwDpj6zK
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 4 IoCs
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UPX dump on OEP (original entry point) 4 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 4 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\2024-01-25_9fcec53986a5ded7f59f8b99f77c53c3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_9fcec53986a5ded7f59f8b99f77c53c3_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
86KB
MD5cedfdeb03dcf9b16746eae99b25bd49e
SHA1b0e60d2b201a1e161225ae173911685947cf37c8
SHA25678c7d76080c7a9ae86c0ffe1b1b50a36f19659b9a82b196e052a4bfeb661bd1b
SHA512ce8eddfb28e47731507e84542b620c2db3288514a83e99a7fec5e7217cdc62ed82254e48f049649188aa3415a7e23f62af3c2641e56024ff76a939dfc2154829
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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
24KB
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Filesize
24KB
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Filesize
60KB