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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240220-en -
resource tags
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submitted
20/02/2024, 11:36
General
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Target
2024-02-20_72aee8a945ba8fc28330b0d674b90b77_cryptolocker.exe
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Size
89KB
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MD5
72aee8a945ba8fc28330b0d674b90b77
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SHA1
3ce61f2dbf228bd7093df9c5d3c652a99afde3b5
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SHA256
addff22bf83f7cf2f2c7844cdc387a4cd56b0b80555ade6826c2c79f765e0e49
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SHA512
952d14d9639f765019bb97942097e059ca1a9b9b4510bea39978a88955fd91eeef7572e5445da972861d396479c249faa753b93b3489cb77966d5390b7933824
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgdxN:AnBdOOtEvwDpj6z9
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\2024-02-20_72aee8a945ba8fc28330b0d674b90b77_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-20_72aee8a945ba8fc28330b0d674b90b77_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
89KB
MD58c498acb110b4877875c17688a6f90a7
SHA14cebfc6e8c5ea4da6ba8245ec3014e2fc0016797
SHA256a1d297d7c7b17b8c1730fce86b207800d444696511514b7b9bac473d3b26a8e9
SHA512da6f66e653c0d6a3a0096cee227394430eba058351a3a02cad4c653f1c001192c8075321c43883c97ea019158e4bbf3184f3ef8ee8b137c044b098d302a0343c
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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