Overview

overview

10

Static

static

10

Perm-spofer.exe

windows7-x64

10

Perm-spofer.exe

windows10-2004-x64

10

Resubmissions

22/01/2025, 15:52

250122-ta7ekavler10

22/01/2025, 15:47

250122-s8lp3stlev10

Analysis

  • max time kernel
    9s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22/01/2025, 15:47

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General

  • Target
    Perm-spofer.exe
  • Size 68KB
  • Sample250122-s8lp3stlev
  • SHA256 c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

C2

  • simply-exotic.gl.at.ply.gg:27183

Attributes
  • Install_directory

    %Temp%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Xworm family
    xworm
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\Perm-spofer.exe
    "C:\Users\Admin\AppData\Local\Temp\Perm-spofer.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Perm-spofer.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2684
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Perm-spofer.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1952
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\User'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2812
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'User'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2488
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "User" /tr "C:\Users\Admin\AppData\Local\Temp\User"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2068

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        590aee7bdd69b59b.customDestinations-ms
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
        • Size 7KB
        • SHA256 ae6c782773e5966ecf24e3dc0b4f4611cd63a41e824b064536af3e0d560338e0
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1952-15-0x000000001B5D0000-0x000000001B8B2000-memory.dmp
        Download

        memory/1952-16-0x0000000000310000-0x0000000000318000-memory.dmp
        Download

        memory/2684-7-0x0000000002D50000-0x0000000002DD0000-memory.dmp
        Download

        memory/2684-8-0x000000001B6A0000-0x000000001B982000-memory.dmp
        Download

        memory/2684-9-0x0000000002880000-0x0000000002888000-memory.dmp
        Download

        memory/2704-0-0x000007FEF5BC3000-0x000007FEF5BC4000-memory.dmp
        Download

        memory/2704-1-0x00000000010C0000-0x00000000010D8000-memory.dmp
        Download

        memory/2704-2-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp
        Download

        memory/2704-27-0x000007FEF5BC3000-0x000007FEF5BC4000-memory.dmp
        Download