Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
29-01-2024 15:56
General
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Target
2024-01-29_a245389bf2b93dfda59696c9d53d93e3_cryptolocker.exe
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Size
64KB
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MD5
a245389bf2b93dfda59696c9d53d93e3
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SHA1
920513c65c57a25623f8394946241acb168da08b
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SHA256
80ab284f2d811a89b874226862e362372eb20c7bca4163977961fb6aea936855
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SHA512
0492f830e7cbe0cf430147a0ca36ee73acdd5e2e34c2e25419867f2512874e59547768c4c5f96ae6e874bb4490151a54f756b684ede158f294c979e70da26310
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjY6Uk:1nK6a+qdOOtEvwDpj5
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\2024-01-29_a245389bf2b93dfda59696c9d53d93e3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-29_a245389bf2b93dfda59696c9d53d93e3_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
64KB
MD5f2e2641961c923baec4db79d0f88d1a2
SHA10e353d4ef632a56baec8d22e148397689a24512d
SHA256c4872e49013e90c62f61881b4ecd135a46072c370035f2e87f2837880e6f7b8a
SHA5124481070360970e17a9d29df8b2b5cd985dafab69ebe4eacfdf6d9b47133305e2ac1f930bbdd1c725d7dd458558e2f2ecce11503e58da426c18e5fc74aa2f8669
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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
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB