Analysis

  • max time kernel
    17s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 09:46

General

  • Target
    extension-fix-7U1477.hta
  • Size 3KB
  • Sample260803-lr1z4sgl21
  • SHA256 05a2e0a5dd806766863033e9ed409633083e721ca9de1036baf8348caa9bab11
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 28 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\extension-fix-7U1477.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Badlisted process makes network request
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:5720
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4640
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:2952
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4892
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:2400
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2844
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:4396
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1828
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:5028
    • C:\Windows\SysWOW64\attrib.exe
      "C:\Windows\System32\attrib.exe" +h +s "C:\qntuevxg\"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:1212
    • C:\qntuevxg\qntuevxg.exe
      "C:\qntuevxg\qntuevxg.exe" C:\qntuevxg\qntuevxg
      2⤵
        PID:5980
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
        2⤵
          PID:4376
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
            3⤵
              PID:5660
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c ping -n 300 -w 1000 127.0.0.1 >nul
            2⤵
            • Executes a command shell one-liner
            • System Network Configuration Discovery: Internet Connection Discovery
            PID:3596
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 300 -w 1000 127.0.0.1
              3⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:2500

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              a1.zip

              • Path C:\qntuevxg\a1.zip
              • Size 494KB
              • SHA256 ebf20583195bd4a090836e3fb9012ec6be96aff0043e9065c0fdad848ca86482
              • MD5 SHA1 SHA512 SSDEEP TLSH

              a2.zip

              • Path C:\qntuevxg\a2.zip
              • Size 1.3MB
              • SHA256 163d1e248eacdc33919e1586b7d63e5d4650fb222d4f820c1097c8e9d5e1accf
              • MD5 SHA1 SHA512 SSDEEP TLSH

              a3.zip

              • Path C:\qntuevxg\a3.zip
              • Size 2KB
              • SHA256 2a093a2ca115c216c5403e56b0d0f2c86b545426136bfb1f4ae433e4b7ed757d
              • MD5 SHA1 SHA512 TLSH

              qntuevxg

              • Path C:\qntuevxg\qntuevxg
              • Size 1.3MB
              • SHA256 30af0a4b9b7c7d8cf41c169be3d51c03d9dabd0c18ed699b31850b618b5db55e
              • MD5 SHA1 SHA512 SSDEEP TLSH

              qntuevxg.exe

              • Path C:\qntuevxg\qntuevxg.exe
              • Size 957KB
              • SHA256 bdd2b7236a110b04c288380ad56e8d7909411da93eed2921301206de0cb0dda1
              • MD5 SHA1 SHA512 SSDEEP TLSH