Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
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submitted
19-02-2024 20:26
General
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Target
2024-02-19_2497b2bd465fa40c1d8ced4538d9a739_cryptolocker.exe
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Size
56KB
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MD5
2497b2bd465fa40c1d8ced4538d9a739
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SHA1
0aaecbf561f0fd549b91a676fde042470d1743a4
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SHA256
c591e4d3fa630f8c5c022527d28fdb90bc9213c1238b487d277b7bf3e98fa93c
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SHA512
e8d758eec7691c2f0ecc0d984c766baee9e3942c7cb063b606dc1e7e5ff8f48153d4d1a8d79427cbe4d54198ddc14820b30ebdf5d28760c579d46a5db10b6651
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SSDEEP
768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5axc9Cie:z6QFElP6n+gKmddpMOtEvwDpj9aYap1
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\2024-02-19_2497b2bd465fa40c1d8ced4538d9a739_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_2497b2bd465fa40c1d8ced4538d9a739_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
56KB
MD5845b9b9550e8f573dea558f702691cff
SHA1db8dbe299e329cb6fcd511292ac8d3d55ad50088
SHA2561d8fbe9648f2a9a85ef7dd6fbd388a4d9224d1982859cdd4e0ed7d309edd5fd9
SHA51202d20f36db904d05248f913ad75ed71a8ec210e4b59b281c583cf93baf880331bb3641443af915ffe326a0e5504d9e70d9b6be02c7ae119639ca28c5562f98d9
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Filesize
64KB
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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
24KB
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Filesize
64KB