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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, 21:27
General
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Target
2024-04-27_b1b9fa34deca2f0918c07e8988df8675_cryptolocker.exe
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Size
79KB
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MD5
b1b9fa34deca2f0918c07e8988df8675
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SHA1
1b230dc2ae8f531e95f76797f72a2680cb5d80f6
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SHA256
354c7883c36c383933863ea7d7e5cc1042e4674ea40d9b9f38b993623d044fcc
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SHA512
b66bb28ed3d3d493e6911f86002ec3559775f755b498aeaeed0cb6ffd55890df0086f089fe059756aacbc0602900af12aba8f989fb1cbdbae92e7ddb787e9d87
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOA+YSafiPuqd8:T6a+rdOOtEvwDpjNcF
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_b1b9fa34deca2f0918c07e8988df8675_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-27_b1b9fa34deca2f0918c07e8988df8675_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
79KB
MD54ea20028393120ad0e2632b0d7400ac7
SHA18c45cd2eaa74590c91a8cf76a08f90cbcf66e210
SHA25659226448fee9c9f3b5be8608c1bf0daf25eea68f86a1686ce0aa7f2fbb20aefa
SHA512737e07ad2f0f31cb9c4f777ca5a04997c7d9c5f2403c6d19d6c632f734c237618bddea512d52a335162971fbe28c20cf99c341b338a1a5a2f1bc77ed3b756783
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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
24KB
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Filesize
24KB
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Filesize
64KB