Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
08/09/2026, 01:56
General
- Target 2026-09-07_ef3c0576d25e69630fadcf6218f5f99e_cryptolocker_elex.exe
- Size 41KB
- Sample260908-cc71fabl9v
- SHA256 19d8010def646be83d1d6c63ff6b8f44621f51b466c25a70e4ff655f6b378f72
Malware Config
Signatures
- Detection of CryptoLocker Variants 6 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\2026-09-07_ef3c0576d25e69630fadcf6218f5f99e_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-07_ef3c0576d25e69630fadcf6218f5f99e_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
lossy.exe
memory/3784-1-0x0000000008004000-0x0000000008005000-memory.dmp
memory/3784-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/3784-2-0x00000000021C0000-0x00000000021C6000-memory.dmp
memory/3784-3-0x0000000008000000-0x000000000800A000-memory.dmp
memory/3784-4-0x0000000002030000-0x0000000002036000-memory.dmp
memory/5096-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5096-19-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5096-21-0x0000000008000000-0x000000000800A000-memory.dmp
memory/5096-22-0x00000000004F0000-0x00000000004F6000-memory.dmp