Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
25/01/2024, 17:37
General
- Target 2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe
- Size 127KB
- Sample240125-v7cf5abgh3
- SHA256 c91f106a83fc6875e31848d47571d93c8a9a16bb6199070a3da7fb46b5fcac35
Score
10/10
Malware Config
Signatures
- Kinsing
Kinsing is a loader written in Golang.
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 4 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
- UPX packed file 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_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
Loading Replay Monitor...
Downloads
asih.exe
memory/1272-0-0x0000000000500000-0x000000000050F000-memory.dmp
memory/1272-1-0x0000000000730000-0x0000000000736000-memory.dmp
memory/1272-2-0x0000000000730000-0x0000000000736000-memory.dmp
memory/1272-3-0x00000000020F0000-0x00000000020F6000-memory.dmp
memory/1272-17-0x0000000000500000-0x000000000050F000-memory.dmp
memory/5100-19-0x0000000001F60000-0x0000000001F66000-memory.dmp
memory/5100-25-0x0000000002050000-0x0000000002056000-memory.dmp
memory/5100-26-0x0000000000500000-0x000000000050F000-memory.dmp