Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
16/04/2026, 08:43
General
- Target 2026-04-16_86f583a1cc02685d454cadb04f831dc9_cryptolocker_elex.exe
- Size 61KB
- Sample260416-kml5qaew6x
- SHA256 e57c4b1d0243df12fcb02ced6b822c9ddad0cf12bdbafd92dd7da6bf2b762fc2
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-16_86f583a1cc02685d454cadb04f831dc9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-16_86f583a1cc02685d454cadb04f831dc9_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
rewok.exe
memory/3720-18-0x0000000000400000-0x0000000000408000-memory.dmp
memory/3720-22-0x0000000000400000-0x0000000000408000-memory.dmp
memory/3720-30-0x0000000001F50000-0x0000000001FC5000-memory.dmp
memory/4608-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/4608-1-0x00000000022C0000-0x00000000022C6000-memory.dmp
memory/4608-2-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4608-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4608-20-0x00000000006C0000-0x0000000000735000-memory.dmp