Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
04/05/2026, 11:58
General
- Target 2026-05-04_0c11a943c69b71373fd5fec0db25d3a1_cryptolocker_elex.exe
- Size 62KB
- Sample260504-n5eedaev5m
- SHA256 662b0853788e4bdf5827abe93a6852a22cb9d24d84a95d48786e01dad648c199
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\2026-05-04_0c11a943c69b71373fd5fec0db25d3a1_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-04_0c11a943c69b71373fd5fec0db25d3a1_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/5484-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/5484-1-0x00000000020D0000-0x00000000020D6000-memory.dmp
memory/5484-2-0x0000000000400000-0x0000000000408000-memory.dmp
memory/5484-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/5484-19-0x00000000020F0000-0x0000000002186000-memory.dmp
memory/5888-20-0x0000000000400000-0x0000000000408000-memory.dmp
memory/5888-28-0x0000000000400000-0x0000000000408000-memory.dmp
memory/5888-31-0x0000000000400000-0x0000000000408000-memory.dmp
memory/5888-30-0x0000000000570000-0x0000000000606000-memory.dmp