Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
19/08/2026, 04:26
General
- Target 2026-08-19_c42251fea149eb5a4736c25bd4b4a095_cryptolocker_elex.exe
- Size 53KB
- Sample260819-e22k3ada26
- SHA256 89e671fa07c2f80021998f8ca41e4bc357a7bc5c636ab0cf605d0168cb7a1bdf
Score
9/10
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\2026-08-19_c42251fea149eb5a4736c25bd4b4a095_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_c42251fea149eb5a4736c25bd4b4a095_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/2920-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/2920-1-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/2920-2-0x0000000000400000-0x0000000000408000-memory.dmp
memory/2920-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4948-18-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4948-21-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4948-29-0x0000000000400000-0x0000000000408000-memory.dmp