Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
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submitted
27-04-2024 18:38
General
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Target
2024-04-27_c8e7450c7c2795708472b31153bbe4b5_cryptolocker.exe
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Size
61KB
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MD5
c8e7450c7c2795708472b31153bbe4b5
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SHA1
28d096e4620fdb0047bb9c18cf38752c91237048
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SHA256
d2d4ffe2ab53b00f0028d0ca799865a3b9e86b561647ee4658ce98b3f369465d
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SHA512
07e55b42bca27995ecab6397b3cd2d1d4baae6316c795f809616b1230caf42d20996db4327c2accd1557ae0539af55aa5961b361d2cea2ce8f7d01f55798ba45
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHNMhR:1nK6a+qdOOtEvwDpjh
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\2024-04-27_c8e7450c7c2795708472b31153bbe4b5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-27_c8e7450c7c2795708472b31153bbe4b5_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
61KB
MD5931fa9217a480926a6449bbcbbed3720
SHA17d3cd43ded14fd092e26721d2df244fe6eea53c8
SHA256084903c40bc5768c15256e1f9075ebabdd1cf44872ef63f0e9f5fcef9f827bf3
SHA5121d5bc9353b13ea9a89203cc8f7ef29b3f3d72c139226d2dfc9ebc3f7fd82082a171948d950036ed177e9d8b685b35e765f8be368ecfb7b971f945601c3efd03d
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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