Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
05/05/2026, 07:53
General
- Target 2026-05-05_adbebe5c4f1a7d868198c50fe682c168_cryptolocker_elex.exe
- Size 40KB
- Sample260505-jrfcasey5p
- SHA256 a7c1bccb618e51e3d1d57d4d32e1ce716c4f4b6bded807892b54dbdbf6a0a236
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\2026-05-05_adbebe5c4f1a7d868198c50fe682c168_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-05_adbebe5c4f1a7d868198c50fe682c168_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/3504-30-0x0000000001EE0000-0x0000000001F9F000-memory.dmp
memory/3504-41-0x0000000001EE0000-0x0000000001F9F000-memory.dmp
memory/4832-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/4832-1-0x0000000002260000-0x0000000002266000-memory.dmp
memory/4832-2-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4832-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4832-19-0x0000000002020000-0x00000000020DF000-memory.dmp