Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
27/03/2024, 03:40
General
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Target
2024-03-27_4c845c8b812233154c7d36857b23f19c_cryptolocker.exe
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Size
94KB
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MD5
4c845c8b812233154c7d36857b23f19c
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SHA1
7784b3f2713e162607f85cca619b744b5b3e8c8f
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SHA256
4750c3653c7667cb4bca80551648a41a916f861c737e5424f03e7a063813d66d
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SHA512
812f7f9d621e7784719fd4b7097bfbae9856f44eb3346e0226c85560dbca46de10b0a17f840c97fad2a2d527b6f01ff502341d159706e5312f630f1e1348ceda
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/bL:zCsanOtEvwDpjBP
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\2024-03-27_4c845c8b812233154c7d36857b23f19c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-27_4c845c8b812233154c7d36857b23f19c_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.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
95KB
MD577f1f2f96e15c3e7cc2fa402f7bb9812
SHA16e716508b2e4bdea27cc671a202eff7811897861
SHA2568160d1be739897928c2b8d66d8d24e359bd62a92c0f09d77be612ac840824cad
SHA5123bdf98e0da09d71043f1fa2020ba975c191e8f3661ca37208aea02fac9c8f58822abf87368c57b81adf653c512d478a37ac69607287f09d030b8b9ed4d084997
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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