Analysis
- user interaction
yes - max time kernel
94s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
05/07/2026, 11:07
General
- Target reFX Nexus v5.3.27.exe
- Size 23.3MB
- Sample260705-m8ezmsfx2p
- SHA256 38f9edf5b83cf6ada98531d3ee43372690d06d8ff73fb3d17d13acf63de122ca
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 11 IoCs
- 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.
- Inno Setup is an open-source installation builder for Windows applications. 3 IoCs
Inno Setup installer
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\reFX Nexus v5.3.27.exe"C:\Users\Admin\AppData\Local\Temp\reFX Nexus v5.3.27.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-VCMKH.tmp\reFX Nexus v5.3.27.tmp"C:\Users\Admin\AppData\Local\Temp\is-VCMKH.tmp\reFX Nexus v5.3.27.tmp" /SL5="$5021E,23341829,892928,C:\Users\Admin\AppData\Local\Temp\reFX Nexus v5.3.27.exe"2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
reFX Nexus v5.3.27.tmp
memory/2328-6-0x0000000000DD0000-0x0000000000DD1000-memory.dmp
memory/2328-10-0x0000000000DD0000-0x0000000000DD1000-memory.dmp
memory/2328-9-0x0000000000400000-0x000000000079D000-memory.dmp
memory/2328-12-0x0000000000400000-0x000000000079D000-memory.dmp
memory/2328-1140-0x0000000000400000-0x000000000079D000-memory.dmp
memory/5052-0-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/5052-8-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/5052-1141-0x0000000000400000-0x00000000004E8000-memory.dmp