Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
13/06/2024, 04:34
General
- Target 2024-06-13_bfa38441ad1606f12f7bff1d7ef47e31_cryptolocker.exe
- Size 54KB
- Sample240613-e66etavajh
- SHA256 05dd1df7b48184452ebd802d42e132cb5b4bcd00ae7512ecd2ee71552b0b64b0
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 4 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\2024-06-13_bfa38441ad1606f12f7bff1d7ef47e31_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_bfa38441ad1606f12f7bff1d7ef47e31_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/428-0-0x0000000000500000-0x000000000050F000-memory.dmp
memory/428-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/428-2-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/428-9-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/428-17-0x0000000000500000-0x000000000050F000-memory.dmp
memory/4452-18-0x0000000000500000-0x000000000050F000-memory.dmp
memory/4452-20-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/4452-21-0x0000000002100000-0x0000000002106000-memory.dmp