Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
24/04/2026, 09:48
General
- Target 2026-04-24_2cc0d85c78e5f6edb9399d60c19f7b99_cryptolocker_elex.exe
- Size 33KB
- Sample260424-ls2ysset7s
- SHA256 c8efaac56e2c9f7e8d40885c757cb56ca99fd8d115764fa9969813146017ecdb
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\2026-04-24_2cc0d85c78e5f6edb9399d60c19f7b99_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-24_2cc0d85c78e5f6edb9399d60c19f7b99_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/3436-18-0x0000000000400000-0x000000000040C000-memory.dmp
memory/3436-28-0x0000000000400000-0x000000000040C000-memory.dmp
memory/3436-30-0x0000000002070000-0x00000000020CF000-memory.dmp
memory/3436-31-0x0000000000400000-0x000000000040C000-memory.dmp
memory/4636-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/4636-1-0x00000000021E0000-0x00000000021E6000-memory.dmp
memory/4636-2-0x0000000000400000-0x000000000040C000-memory.dmp
memory/4636-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4636-20-0x0000000002180000-0x00000000021DF000-memory.dmp