Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
04/05/2026, 03:33
General
- Target 2026-05-04_3441aab974392b49a7ae526c245500f7_cryptolocker_elex.exe
- Size 40KB
- Sample260504-d4b8hsfv4p
- SHA256 6ba3558759c8a635a57bad14468d84dd09d0236ee524ae818a974bee5b7dd4a2
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 4 IoCs
- 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\2026-05-04_3441aab974392b49a7ae526c245500f7_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-04_3441aab974392b49a7ae526c245500f7_cryptolocker_elex.exe"1⤵
- 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
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Downloads
rewok.exe
memory/4936-20-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4936-22-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4936-29-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4936-31-0x0000000002FC0000-0x000000000300A000-memory.dmp
memory/5804-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/5804-1-0x0000000002640000-0x0000000002646000-memory.dmp
memory/5804-2-0x0000000000400000-0x0000000000408000-memory.dmp
memory/5804-4-0x0000000000400000-0x0000000000406000-memory.dmp
memory/5804-19-0x0000000002FB0000-0x0000000002FFA000-memory.dmp