Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
30/05/2024, 03:49
General
- Target 2024-05-30_59a1fc39b8bfb92945dc47812377bc47_cryptolocker.exe
- Size 65KB
- Sample240530-ederdsed48
- SHA256 d681a92a53fad13666699c7b4f4289a8789051ca0dd16d2b259df3dafa24fdad
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 2 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\2024-05-30_59a1fc39b8bfb92945dc47812377bc47_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-30_59a1fc39b8bfb92945dc47812377bc47_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/1480-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1480-21-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/1480-27-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/1480-28-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3048-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3048-1-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/3048-2-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/3048-9-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/3048-19-0x0000000000500000-0x0000000000510000-memory.dmp