Analysis
- max time kernel
142s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
25/01/2024, 17:48
General
- Target 2024-01-25_3489dda3478cb34b4024cd4376e0c9c8_cryptolocker.exe
- Size 59KB
- Sample240125-wdj5jschhr
- SHA256 43df89f3436e4539a5ec30aada203fa03c7897877c27b18eab987f056fcb039b
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_3489dda3478cb34b4024cd4376e0c9c8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_3489dda3478cb34b4024cd4376e0c9c8_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/1296-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1296-1-0x0000000000660000-0x0000000000666000-memory.dmp
memory/1296-2-0x0000000000660000-0x0000000000666000-memory.dmp
memory/1296-3-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/1296-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4916-20-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/4916-19-0x0000000000590000-0x0000000000596000-memory.dmp
memory/4916-26-0x0000000000500000-0x0000000000510000-memory.dmp