Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
26/04/2026, 03:29
General
- Target 2026-04-26_42a45eb5833cc271088c785dbb4df782_cryptolocker_elex.exe
- Size 61KB
- Sample260426-d2dnkaex2r
- SHA256 7083a3d1feb3c9058c6547d6a584c7dd08459d72dfbba7ce2a5c63273042ce25
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 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\2026-04-26_42a45eb5833cc271088c785dbb4df782_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-26_42a45eb5833cc271088c785dbb4df782_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
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Downloads
rewok.exe
memory/3504-20-0x0000000000400000-0x0000000000408000-memory.dmp
memory/3504-28-0x0000000000400000-0x0000000000408000-memory.dmp
memory/3504-31-0x0000000000400000-0x0000000000408000-memory.dmp
memory/3504-30-0x0000000001F50000-0x000000000200F000-memory.dmp
memory/3504-41-0x0000000001F50000-0x000000000200F000-memory.dmp
memory/4768-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/4768-1-0x00000000005E0000-0x00000000005E6000-memory.dmp
memory/4768-2-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4768-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4768-19-0x0000000002090000-0x000000000214F000-memory.dmp