Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
25/01/2024, 15:56
General
- Target 2024-01-25_f99d0c28e52597958c35ecd0ec00f55a_cryptolocker.exe
- Size 75KB
- Sample240125-tdb3tsabc6
- SHA256 f68a0aa7625616b0e5d55f92dd68c55a7527289e2d2f1c8998a62b91281e6755
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_f99d0c28e52597958c35ecd0ec00f55a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_f99d0c28e52597958c35ecd0ec00f55a_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/224-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/224-1-0x0000000000630000-0x0000000000636000-memory.dmp
memory/224-2-0x0000000000630000-0x0000000000636000-memory.dmp
memory/224-3-0x0000000002100000-0x0000000002106000-memory.dmp
memory/224-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4212-19-0x0000000002070000-0x0000000002076000-memory.dmp
memory/4212-20-0x0000000002050000-0x0000000002056000-memory.dmp
memory/4212-26-0x0000000000500000-0x0000000000510000-memory.dmp