Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
04/05/2026, 08:31
General
- Target 2026-05-04_955071ea8b7967ac8c69f1485763ae72_cryptolocker_elex.exe
- Size 97KB
- Sample260504-key5baav7q
- SHA256 6ed4aed67ee543fc65bd1b9e8ea6ba52c2a74256d527b8e4d647a754067a9d5b
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
- Custom signatureDetection of Cryptolocker Samples 1 IoCs
- Checks computer location settings 2 TTPs 2 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\2026-05-04_955071ea8b7967ac8c69f1485763ae72_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-04_955071ea8b7967ac8c69f1485763ae72_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
hurok.exe
memory/1248-0-0x0000000000570000-0x0000000000576000-memory.dmp
memory/1248-1-0x0000000000570000-0x0000000000576000-memory.dmp
memory/1248-2-0x0000000000400000-0x0000000000406000-memory.dmp
memory/1248-18-0x0000000002200000-0x000000000225F000-memory.dmp
memory/4864-20-0x0000000000580000-0x0000000000586000-memory.dmp
memory/4864-28-0x00000000005F0000-0x000000000064F000-memory.dmp
memory/4864-48-0x00000000005F0000-0x000000000064F000-memory.dmp