Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
13/10/2026, 22:21
General
- Target 2026-10-12_b7580b946fe2bb40f4b0fedb897a1454_cryptolocker_elex.exe
- Size 55KB
- Sample261013-19raysde56
- SHA256 433c7dd5e42a16f37cd6320f153786f2c65dc0a47085ba4204b69192e6869cc2
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).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- 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\2026-10-12_b7580b946fe2bb40f4b0fedb897a1454_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-12_b7580b946fe2bb40f4b0fedb897a1454_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
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
rewok.exe
memory/4516-0-0x0000000000404000-0x0000000000405000-memory.dmp
memory/4516-1-0x0000000002110000-0x0000000002116000-memory.dmp
memory/4516-2-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4516-3-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4876-18-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4876-27-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4876-29-0x0000000000400000-0x0000000000408000-memory.dmp