Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 13:47

General

  • Target
    RFQ pdf.js
  • Size 1.8MB
  • Sample261027-q3rm2adv8t
  • SHA256 71ba0d9c87acf2666edddc511438c0889a777674536d5c3f8dc6176fe4d73424
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • Family: AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Executes dropped EXE 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 TTPs 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • ConfuserEx .NET packer 1 IoCs

    Detects ConfuserEx .NET packer.

  • Suspicious use of SetThreadContext 1 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • 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 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.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\RFQ pdf.js"
    1⤵
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_ANkUXlfnphvJ_1793108853012.ps1"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2820
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        PID:4300
    • C:\Windows\System32\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:5056
  • C:\Users\Admin\AppData\Roaming\ZUHFqcY\ZUHFqcY.exe
    C:\Users\Admin\AppData\Roaming\ZUHFqcY\ZUHFqcY.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3176

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        ps_ANkUXlfnphvJ_1793108853012.ps1

        • Path C:\Temp\ps_ANkUXlfnphvJ_1793108853012.ps1
        • Size 1.0MB
        • SHA256 e3330644b2e46e2595811132cde937bcf5e6b7f28471f7440f381f1fee18bdca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ZUHFqcY.exe

        • Path C:\Users\Admin\AppData\Roaming\ZUHFqcY\ZUHFqcY.exe
        • Size 48KB
        • SHA256 923c541ce782bf45a3d338487e6f411cd11ab0b98eb9775a2d2065dff39a4f37
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2820-21-0x0000020E538D0000-0x0000020E538E6000-memory.dmp

        memory/2820-22-0x0000020E53950000-0x0000020E53956000-memory.dmp

        memory/2820-7-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-8-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-6-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-10-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-11-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-12-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-13-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-14-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-39-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-16-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-17-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-18-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-19-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-20-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-5-0x0000020E538E0000-0x0000020E53902000-memory.dmp

        memory/2820-1-0x00007FFD7C05F000-0x00007FFD7C060000-memory.dmp

        memory/2820-15-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-36-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-35-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/2820-2-0x00007FFD7BED0000-0x00007FFD7C874000-memory.dmp

        memory/3176-31-0x0000000000760000-0x0000000000770000-memory.dmp

        memory/3176-32-0x00000000055D0000-0x0000000005AFC000-memory.dmp

        memory/4300-27-0x0000000074DB0000-0x000000007556C000-memory.dmp

        memory/4300-29-0x00000000065B0000-0x0000000006642000-memory.dmp

        memory/4300-26-0x00000000053C0000-0x0000000005426000-memory.dmp

        memory/4300-33-0x0000000006680000-0x00000000066D0000-memory.dmp

        memory/4300-34-0x00000000065A0000-0x00000000065AA000-memory.dmp

        memory/4300-25-0x0000000005980000-0x0000000005F3A000-memory.dmp

        memory/4300-24-0x0000000074DC2000-0x0000000074DC3000-memory.dmp

        memory/4300-37-0x0000000074DC2000-0x0000000074DC3000-memory.dmp

        memory/4300-38-0x0000000074DB0000-0x000000007556C000-memory.dmp

        memory/4300-23-0x0000000000400000-0x0000000000442000-memory.dmp