Analysis
- max time kernel
145s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
25/01/2024, 17:32
General
- Target 2024-01-25_862fb7858e5217ad87827bb6960c81e2_cryptolocker.exe
- Size 77KB
- Sample240125-v4benacfbk
- SHA256 e2090f410d4cca626001c53199a367bb00d12fcfbcd48722f806f5cdd5f62255
Malware Config
Signatures
- Kinsing
Kinsing is a loader written in Golang.
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 5 IoCs
- UPX dump on OEP (original entry point) 5 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 5 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_862fb7858e5217ad87827bb6960c81e2_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_862fb7858e5217ad87827bb6960c81e2_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
misid.exe
memory/3484-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3484-20-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/3484-26-0x0000000000660000-0x0000000000666000-memory.dmp
memory/3484-55-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4148-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4148-1-0x00000000007B0000-0x00000000007B6000-memory.dmp
memory/4148-2-0x00000000007B0000-0x00000000007B6000-memory.dmp
memory/4148-3-0x00000000007D0000-0x00000000007D6000-memory.dmp
memory/4148-18-0x0000000000500000-0x0000000000510000-memory.dmp