Analysis
- max time kernel
150s - max time network
141s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
03/10/2026, 13:03
General
- Target tuxlerVPNSetup.exe
- Size 28.9MB
- Sample261003-qaeg1adc76
- SHA256 86f04b1617a9c6175e4370423bd7726bb5923c068604a39a6502fe829075da3f
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- 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. 2 IoCs
Inno Setup installer
- Kills process with taskkill 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\tuxlerVPNSetup.exe"C:\Users\Admin\AppData\Local\Temp\tuxlerVPNSetup.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-JRO12GU2CL.tmp\tuxlerVPNSetup.tmp"C:\Users\Admin\AppData\Local\Temp\is-JRO12GU2CL.tmp\tuxlerVPNSetup.tmp" /SL5="$400AA,29034187,969728,C:\Users\Admin\AppData\Local\Temp\tuxlerVPNSetup.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\taskkill.exe"C:\Windows\Sysnative\taskkill.exe" /f /im ExtensionHelperAppHelperTuxler.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\system32\taskkill.exe"C:\Windows\Sysnative\taskkill.exe" /f /im TuxlerFreeResidentialVPN.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tuxlerVPNSetup.tmp
memory/2084-18-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-24-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-38-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-11-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-12-0x0000000001100000-0x0000000001101000-memory.dmp
memory/2084-14-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-16-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-36-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-6-0x0000000001100000-0x0000000001101000-memory.dmp
memory/2084-20-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-22-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-26-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-28-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-30-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-32-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2084-34-0x0000000000590000-0x00000000009E6000-memory.dmp
memory/2652-0-0x0000000000360000-0x000000000045B000-memory.dmp
memory/2652-10-0x0000000000360000-0x000000000045B000-memory.dmp