Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/11/2026, 07:13

General

  • Target
    Franqu8Intern6-Cod-Cerr-tplgtcNum163030-Extern-FUIXHF.vbs
  • Size 7.0MB
  • Sample261113-h17bps1z5k
  • SHA256 478e2f7937a751525ade56cd4d4b80b03804c28852ed03cb371da3c8714d236b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates VirtualBox registry keys 2 TTPs 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 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 3 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Franqu8Intern6-Cod-Cerr-tplgtcNum163030-Extern-FUIXHF.vbs"
    1⤵
    • Checks computer location settings
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Users\Public\x%DegLIsyPL0qREbb8u.exe
      "C:\Users\Public\x%DegLIsyPL0qREbb8u.exe"
      2⤵
      • Enumerates VirtualBox registry keys
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks computer location settings
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3972
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Public\opOTyrXH.vbs"
        3⤵
        • Executes a VBScript file via the Windows Script Host.
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:2380
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Public\bfjwCISBTuw.vbs"
        3⤵
        • Executes a VBScript file via the Windows Script Host.
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:2800

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        bfjwCISBTuw.vbs

        • Path C:\Users\Public\bfjwCISBTuw.vbs
        • Size 565B
        • SHA256 b4d2e1c463a74a6842ee46f805264fae9b624a16ebd21bf8c8fefe2a505043a3
        • MD5 SHA1 SHA512 TLSH

        opOTyrXH.vbs

        • Path C:\Users\Public\opOTyrXH.vbs
        • Size 562B
        • SHA256 dedfa9dbd19158d4181d659f09f4d36fb21529bb5cc7a4e41c77cc6e0a7a2c51
        • MD5 SHA1 SHA512 TLSH

        x%DegLIsyPL0qREbb8u.zip

        • Path C:\Users\Public\x%DegLIsyPL0qREbb8u.zip
        • Size 4.2MB
        • SHA256 c08e416273cd89361f4bf291ba10f484631e5df8e7dba647c509ec11c6480564
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3972-41-0x0000000000FC0000-0x0000000006BB9000-memory.dmp