Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
15/08/2026, 00:23
General
- Target FSViewer.exe
- Size 8.0MB
- Sample260815-aprg4swtbx
- SHA256 0f5177f25e85418a2b9c9be2d0566c717de589e2d436cafa25686c58e9d0619c
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 2 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of SetWindowsHookEx 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\FSViewer.exe"C:\Users\Admin\AppData\Local\Temp\FSViewer.exe"1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/4148-0-0x0000000000D8C000-0x0000000000D8D000-memory.dmp
memory/4148-1-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-6-0x00000000057D0000-0x00000000057EE000-memory.dmp
memory/4148-7-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-8-0x000000006AD80000-0x000000006ADFE000-memory.dmp
memory/4148-9-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-10-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-12-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-14-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-16-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-18-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-22-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-24-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-26-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-28-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-30-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-32-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-34-0x00000000006E0000-0x0000000000F04000-memory.dmp
memory/4148-36-0x00000000006E0000-0x0000000000F04000-memory.dmp