Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
11/06/2024, 12:31
General
- Target 2024-06-11_398b321ef83cbd6d17576b8aacc56181_cryptolocker.exe
- Size 52KB
- Sample240611-pqa9vaxdnk
- SHA256 626d943938777d326a375d8e921c60a016d602658f18e323363bc7c601c40371
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 3 IoCs
- UPX dump on OEP (original entry point) 5 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-11_398b321ef83cbd6d17576b8aacc56181_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_398b321ef83cbd6d17576b8aacc56181_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/3988-19-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3988-21-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/3988-27-0x0000000000660000-0x0000000000666000-memory.dmp
memory/3988-28-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4748-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4748-1-0x0000000002050000-0x0000000002056000-memory.dmp
memory/4748-2-0x0000000002080000-0x0000000002086000-memory.dmp
memory/4748-9-0x0000000002050000-0x0000000002056000-memory.dmp
memory/4748-18-0x0000000000500000-0x0000000000510000-memory.dmp