Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
18/01/2024, 23:19
General
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Target
2024-01-18_c28fee5848c8e75e973087e24d8b4888_cryptolocker.exe
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Size
59KB
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MD5
c28fee5848c8e75e973087e24d8b4888
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SHA1
eb76fa468570f0ad7a66bd410aa2f1ebb390b25b
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SHA256
39b16c6eedbc7266f8194bb6bc43ca0d049481361ba46bf5e575bde5191ae5f5
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SHA512
3eba205cd07c3aab02471b4b092db1de1ad987c8e3dcd762128b78140f191480c451166d8aaab9ff6a96a1fb2446c5f25603c0e47b936f64236d3f7be8558280
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SSDEEP
768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5aFr7YOzR8k:z6QFElP6n+gKmddpMOtEvwDpj9aYaFAG
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\2024-01-18_c28fee5848c8e75e973087e24d8b4888_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-18_c28fee5848c8e75e973087e24d8b4888_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
59KB
MD55bce11d9e3ff89415f0c296eca5159e2
SHA1059e2c8fafc1ffd31b3c524e4f5daae0aae84f44
SHA256230ba65107f33ea80d8c5307c2f8a6f32b5ee1aa102a325814380da9c94d35c7
SHA512dcf54835082e01b648ab33040495b9ff77b011b71d8fb81bf367c10dd91141917b2b48067bdaa23cb5f3efac4ecfbc16a81a41347b8d834931f164b895387dec
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB