Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
15/04/2026, 08:08
General
- Target 2026-04-15_d561706bb4a9717fbb7b9ef1d0d5f5df_cryptolocker_elex.exe
- Size 57KB
- Sample260415-j111csct9x
- SHA256 fc272026fed16cadf3f0f0d4477314031424fda86edb46069db3c224aa925e84
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\2026-04-15_d561706bb4a9717fbb7b9ef1d0d5f5df_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-15_d561706bb4a9717fbb7b9ef1d0d5f5df_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/1788-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/1788-1-0x00000000021E0000-0x00000000021E6000-memory.dmp
memory/1788-2-0x0000000000400000-0x000000000040C000-memory.dmp
memory/1788-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/1788-20-0x0000000002130000-0x00000000021AA000-memory.dmp
memory/2344-18-0x0000000000400000-0x000000000040C000-memory.dmp
memory/2344-28-0x0000000000400000-0x000000000040C000-memory.dmp
memory/2344-31-0x0000000000400000-0x000000000040C000-memory.dmp
memory/2344-30-0x0000000002370000-0x00000000023EA000-memory.dmp
memory/2344-55-0x0000000002370000-0x00000000023EA000-memory.dmp