Overview

overview

10

Static

static

10

Shellbag anylizer.exe

windows7-x64

10

Shellbag anylizer.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    118s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    13/06/2024, 21:51

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General

  • Target
    Shellbag anylizer.exe
  • Size 69KB
  • Sample240613-1q1ehs1gkd
  • SHA256 8f2d3eeab5e5d807acff4be9b7d6b41340f0c8a891baa094543d10e65ccec7f2
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

Attributes
  • Install_directory

    %Temp%

  • install_file

    svchost.exe

  • pastebin_url

    https://pastebin.com/raw/qEVZXv39

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • 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
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • 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).

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Shellbag anylizer.exe
    "C:\Users\Admin\AppData\Local\Temp\Shellbag anylizer.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2416
    • 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\Shellbag anylizer.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2728
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Shellbag anylizer.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2680
    • 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\svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2736
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2308

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 3f4bda03b3d754b1b696a5e010de35fcf3c7751869898f5c5283aabaee49c03b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/2416-0-0x000007FEF5BF3000-0x000007FEF5BF4000-memory.dmp
        Download

        memory/2416-1-0x0000000000090000-0x00000000000A8000-memory.dmp
        Download

        memory/2416-2-0x000007FEF5BF0000-0x000007FEF65DC000-memory.dmp
        Download

        memory/2416-30-0x000007FEF5BF3000-0x000007FEF5BF4000-memory.dmp
        Download

        memory/2416-31-0x000007FEF5BF0000-0x000007FEF65DC000-memory.dmp
        Download

        memory/2680-14-0x000000001B4A0000-0x000000001B782000-memory.dmp
        Download

        memory/2680-15-0x0000000001FD0000-0x0000000001FD8000-memory.dmp
        Download

        memory/2728-7-0x000000001B400000-0x000000001B6E2000-memory.dmp
        Download

        memory/2728-8-0x0000000001D70000-0x0000000001D78000-memory.dmp
        Download