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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
11/05/2024, 14:34
General
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Target
2024-05-11_f4c6732e6082f572e97d548403f578d7_cryptolocker.exe
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Size
88KB
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MD5
f4c6732e6082f572e97d548403f578d7
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SHA1
8200660db4677ac3e2e3b84a73301cc4818d2697
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SHA256
49d0edb6a97b487d8c68bff3e6d02ecd001cc3f6372ed4b431ac32be408947d3
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SHA512
3fa3d32f43f7a669391eb2b184ad5cb68e55cc808e2f4d47e033d8f76433b5caff012ac6ea3b1f3c80a9dcf86cc540139dcf60659e0f180af64e4c9aea93e9f2
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgQq:AnBdOOtEvwDpj6zl
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\2024-05-11_f4c6732e6082f572e97d548403f578d7_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-11_f4c6732e6082f572e97d548403f578d7_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
88KB
MD52fb72ff6a08ea09a675927f2e86ed618
SHA173ee16bc9915469cbb4b1c91febd749b2282bbf6
SHA2562017fbd7e0db584a0d0bd5c4ed6f56fcd610e30d4e6840f285c40d75ad42e44f
SHA5121f2b62c5383ad50c3f7f2f326c2d9b2d8a34db472634468d86ef0031c9e1c21ad90e06bac89594f30f83111f1136cb3aeee590944f52775088021c971fb9bca7
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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