Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
25/01/2024, 15:47
General
- Target 2024-01-25_ba94f8c382fd544c70dd6db0768ea6d0_cryptolocker.exe
- Size 73KB
- Sample240125-s8nvfaaac8
- SHA256 08b47eb168d94c0230714f7f182df7d4f162c4dbd4428c8ff205de07cd79d8b5
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_ba94f8c382fd544c70dd6db0768ea6d0_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_ba94f8c382fd544c70dd6db0768ea6d0_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/1008-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1008-1-0x0000000000660000-0x0000000000666000-memory.dmp
memory/1008-2-0x0000000000660000-0x0000000000666000-memory.dmp
memory/1008-3-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/1008-21-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4004-18-0x0000000001F40000-0x0000000001F46000-memory.dmp
memory/4004-20-0x0000000001F20000-0x0000000001F26000-memory.dmp
memory/4004-26-0x0000000000500000-0x0000000000510000-memory.dmp