Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
26/04/2026, 16:41
General
- Target 2026-04-26_f18bd3d0a75b7a094a9335b6f81265d0_cryptolocker_elex.exe
- Size 46KB
- Sample260426-t7kbasbw91
- SHA256 b28c2a48b4549862857381a0b75cbf43f79e5173d7694ce3832200afa76cdcd4
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 4 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\2026-04-26_f18bd3d0a75b7a094a9335b6f81265d0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-26_f18bd3d0a75b7a094a9335b6f81265d0_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
hasfj.exe
memory/4788-20-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4788-53-0x0000000000790000-0x00000000008B0000-memory.dmp
memory/4788-51-0x0000000000790000-0x00000000008B0000-memory.dmp
memory/4788-28-0x00000000037D0000-0x00000000037D7000-memory.dmp
memory/4788-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4788-27-0x0000000000790000-0x00000000008B0000-memory.dmp
memory/4788-21-0x00000000023D0000-0x00000000023D6000-memory.dmp
memory/5480-3-0x0000000003120000-0x0000000003126000-memory.dmp
memory/5480-17-0x00000000007A0000-0x00000000008C0000-memory.dmp
memory/5480-0-0x0000000008004000-0x0000000008005000-memory.dmp
memory/5480-2-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5480-1-0x0000000002E70000-0x0000000002E76000-memory.dmp