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Analysis
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max time kernel
147s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
12/02/2024, 04:22
General
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Target
2024-02-12_8b38beaea0fb518e9c429df0c5d4d39b_cryptolocker.exe
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Size
82KB
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MD5
8b38beaea0fb518e9c429df0c5d4d39b
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SHA1
1332d693d4822af682d2184a90877d6b637ae133
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SHA256
dc9cebb95a27f8281322479e9a6ac8cf940516ccea70baf42a95260ff805042b
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SHA512
d5dab4fd1dba9ba611eff23655500167cc23187615a342ce9ed2aa57890c2a45b522da53a6284bd338ef6b7efe848ca524e1b87a5c73f5df411f934d83df9ab7
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOT7v:T6a+rdOOtEvwDpjNj
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\2024-02-12_8b38beaea0fb518e9c429df0c5d4d39b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_8b38beaea0fb518e9c429df0c5d4d39b_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
82KB
MD572ecff1721fc53a5e036025e8a2f85d6
SHA1ca3e33cce91dcbd1164b8ab8ec39829ce130fdfc
SHA256097b6530987ed31aa5353ab603c95d5317b9acdc807cab34588af5010010efd9
SHA5123258f7d1da6ea08b079547d7a04ee932107378918dc15127976945adc311dbb671a5036f57a2f6af998bd42f351e04efa784045dc6c5ccaea42f6014f65b07c7
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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