Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
26/05/2024, 03:40
General
- Target 2024-05-26_5f6e0ba8da7a6f88e6d80f77aec9a0f9_cryptolocker.exe
- Size 64KB
- Sample240526-d8dxxaec73
- SHA256 35238b35648fa6b5a17f8e6f9a779c7d13ff69b9443c4580931371158bce321d
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 2 IoCs
- UPX dump on OEP (original entry point) 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\2024-05-26_5f6e0ba8da7a6f88e6d80f77aec9a0f9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-26_5f6e0ba8da7a6f88e6d80f77aec9a0f9_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/1652-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1652-1-0x0000000000670000-0x0000000000676000-memory.dmp
memory/1652-2-0x0000000000760000-0x0000000000766000-memory.dmp
memory/1652-9-0x0000000000670000-0x0000000000676000-memory.dmp
memory/1652-18-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3200-20-0x0000000002070000-0x0000000002076000-memory.dmp
memory/3200-26-0x0000000000500000-0x0000000000510000-memory.dmp