Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
21/08/2026, 04:37
General
- Target 2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_cryptolocker_elex.exe
- Size 39KB
- Sample260821-e82jmsgn2z
- SHA256 ced5a81b490facab51e87e70df90c9698aea77fc2d0fd2d0f7ee9aa6cfad3a60
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).
- 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\2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_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/1676-0-0x0000000008004000-0x0000000008005000-memory.dmp
memory/1676-1-0x0000000000590000-0x0000000000596000-memory.dmp
memory/1676-2-0x0000000008000000-0x0000000008009000-memory.dmp
memory/1676-3-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/1676-17-0x0000000008000000-0x0000000008009000-memory.dmp
memory/3784-19-0x0000000002180000-0x0000000002186000-memory.dmp
memory/3784-25-0x0000000008000000-0x0000000008009000-memory.dmp
memory/3784-26-0x0000000008000000-0x0000000008009000-memory.dmp