Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
03/06/2024, 10:33
General
- Target 2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe
- Size 65KB
- Sample240603-mlxwyacf89
- SHA256 81b87de5f20ca243f95d8d87597191a84f99843b97d6b7004415bab761fc9979
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\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_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/540-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/540-1-0x0000000000490000-0x0000000000496000-memory.dmp
memory/540-2-0x0000000000490000-0x0000000000496000-memory.dmp
memory/540-3-0x00000000005E0000-0x00000000005E6000-memory.dmp
memory/540-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4996-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4996-20-0x00000000005D0000-0x00000000005D6000-memory.dmp
memory/4996-26-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/4996-27-0x0000000000500000-0x0000000000510000-memory.dmp