Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
23/04/2024, 18:26
General
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Target
2024-04-23_89fdfd72f4251dcdb3ecdf55af827aef_cryptolocker.exe
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Size
64KB
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MD5
89fdfd72f4251dcdb3ecdf55af827aef
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SHA1
5337b1c8cb807a2ff6bfee348ac66d96ff9d897b
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SHA256
bd87a0f5daf5ee62aedefaaa9bf58c9747f80630d74768b8c9c2343dc33dbc1d
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SHA512
b703fe115618cae90751674fdc6ff4e9465f3783618171bcdab5cd487fb85c959307f082ed3cb15b1b04fa5efdae25daadf2d6ecf236c012dc807f2eb89f6426
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYZ8xDyK:1nK6a+qdOOtEvwDpjN
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\2024-04-23_89fdfd72f4251dcdb3ecdf55af827aef_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-23_89fdfd72f4251dcdb3ecdf55af827aef_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
65KB
MD5fa71f54c611b76f0a996c2e605368cd2
SHA10d907be863489561d28784886d052d528e779f42
SHA256d0d072f0708b3c42ea14fae0892be6e61525bc7ca01c222003a88e4cc9e1db86
SHA5121ee30dcae151b95d8a5479ed93cde3e13754b084dd6d4a89fba8a5339c360ec848523d882600de750ee69c52c66fa96fe511350b9293fca95e56354a5b1bfe8d
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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