Analysis
- max time kernel
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
25/09/2026, 18:06
General
- Target VrumVPN-Setup-1.4.8.exe
- Size 38.5MB
- Sample260925-wp3q2ashnc
- SHA256 9017247048929403e2ccf8c15f5cf1cb87fd6e5a6e43593064c289d4e0a779ea
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Stops running service(s) 4 TTPs
- Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\VrumVPN-Setup-1.4.8.exe"C:\Users\Admin\AppData\Local\Temp\VrumVPN-Setup-1.4.8.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-QQYJYZPNWY.tmp\VrumVPN-Setup-1.4.8.tmp"C:\Users\Admin\AppData\Local\Temp\is-QQYJYZPNWY.tmp\VrumVPN-Setup-1.4.8.tmp" /SL5="$400A2,39118380,1123840,C:\Users\Admin\AppData\Local\Temp\VrumVPN-Setup-1.4.8.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\sc.exe"sc.exe" stop "VrumVPNHelperService"3⤵
- Launches sc.exe
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C:\Windows\SYSTEM32\taskkill.exe"taskkill" /im VrumVPN.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\taskkill.exe"taskkill" /im VrumVPNHelperService.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\taskkill.exe"taskkill" /im FlClashCore.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\taskkill.exe"taskkill" /f /im VrumVPN.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\taskkill.exe"taskkill" /f /im VrumVPNHelperService.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\taskkill.exe"taskkill" /f /im FlClashCore.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
VrumVPN-Setup-1.4.8.tmp
memory/3780-7-0x00000000002A0000-0x00000000003C1000-memory.dmp
memory/3780-0-0x00000000002A0000-0x00000000003C1000-memory.dmp
memory/5988-16-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-20-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-8-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-12-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-14-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-6-0x00000000018A0000-0x00000000018A1000-memory.dmp
memory/5988-18-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-9-0x00000000018A0000-0x00000000018A1000-memory.dmp
memory/5988-22-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-24-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-26-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-28-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-30-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-32-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-34-0x0000000000750000-0x0000000000BCC000-memory.dmp
memory/5988-36-0x0000000000750000-0x0000000000BCC000-memory.dmp