Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
19/08/2026, 22:49
General
- Target 2026-08-19_5ce242d619a83d062007ed9a10ed3d37_cryptolocker_elex.exe
- Size 51KB
- Sample260819-2ry4hsverb
- SHA256 cf580418bc473b69c59fa30d7a4e4f3cdf21a12d5e7dbe6906fe294f3dbd88c1
Score
9/10
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\2026-08-19_5ce242d619a83d062007ed9a10ed3d37_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_5ce242d619a83d062007ed9a10ed3d37_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/4808-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/4808-1-0x0000000002340000-0x0000000002346000-memory.dmp
memory/4808-2-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4808-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4820-17-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4820-21-0x0000000000400000-0x0000000000408000-memory.dmp