Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
31-05-2024 19:55
General
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Target
2024-05-31_93944b39ae50b4505c419a73c107e7fa_cryptolocker.exe
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Size
53KB
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MD5
93944b39ae50b4505c419a73c107e7fa
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SHA1
f3e1c99cd56e52cbc58eb2ec65949d0244edf6f8
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SHA256
6fff0030146174eccdcd4e39ceeb16718de6eac53fd06c4fecc6b08a7046523b
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SHA512
93874d9e448548765f7163489b89f04c6ddfdcbe7bd656200156c4b546b1b94262c26b6d842b86d63f950ec9d5e1845801b8f9924327923cc89befd176bffd5f
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SSDEEP
768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOJ:z6QFElP6n+gKmddpMOtEvwDpj31iJ
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\2024-05-31_93944b39ae50b4505c419a73c107e7fa_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_93944b39ae50b4505c419a73c107e7fa_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
53KB
MD5372a030bd6163f5bd0305b4a34dcf4b0
SHA10db9786f3685480fd17cbf20407ff36412a6683b
SHA2565b191707235b074e4c3754e78597f169203c1032032b2db0a0c91330fc5bdb6c
SHA512f5cdea05dc617444f8684e3bab291b2bb3648b2b4312cee2a97e5c5f7c93fef68d64fef8b1a5a10627079687a881703471e6b55ff73c8e4785ce3c7893819a66
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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