Overview

overview

10

Static

static

10

patch for ...0b.exe

windows7-x64

patch for ...0b.exe

windows10-2004-x64

Analysis

  • max time kernel
    35s
  • max time network
    37s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    23/05/2024, 22:06

Sharing

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Errors

Reason
Machine shutdown
Report Analysis Logs

General

  • Target

    patch for version-d8aa63d3654646d0b.exe

  • Size

    82KB

  • MD5

    3e38bec199f483f558b0330030c4165b

  • SHA1

    5de15adf326e0827ac1162ba5c13648691bd46ca

  • SHA256

    7493e1a3a07f3e5ab65faa623d7c228360e4f3fc3492a5cbf69f1bd1e61da100

  • SHA512

    ebaa9fe2a723d5c77ed4caf6bae973dabdd3da7725b3439fe18d2410a7df7d206d49b3dd506d8ce5e9db0f2bda16a96ff16edd4e2d92fd17b9ec7d993889a802

  • SSDEEP

    1536:dB7gCNuU8ZsEuE0toc3zTB8Xo2FtsCQ7OGCnbSCUUSbK9mXSB6VPZ+bOWgu6Wxh+:dBpP8DqtvDTMqCO6nbSL7+97zbOWguhG

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    win32.exe

  • pastebin_url

    https://pastebin.com/raw/CxfMChwY

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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • 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\patch for version-d8aa63d3654646d0b.exe
    "C:\Users\Admin\AppData\Local\Temp\patch for version-d8aa63d3654646d0b.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2040
    • 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\patch for version-d8aa63d3654646d0b.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2596
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'patch for version-d8aa63d3654646d0b.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2864
    • 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\Roaming\win32.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2884
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'win32.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2496
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "win32" /tr "C:\Users\Admin\AppData\Roaming\win32.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2000
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x0
    1⤵
      PID:2832
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x1
      1⤵
        PID:2100

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
        Filesize

        7KB

        MD5

        d20002e9a95676223926aa1be3774d85

        SHA1

        8dae788db20013db919fe3ace48e5aef8fc5019d

        SHA256

        f529bcd0aa7cb2e1ac11654c022ced0ae469e5352149cc58dc5deae2e8716ba9

        SHA512

        35a502b7506e39bce5dd5836a6bbab949a9ce22bc86abd125948d637734e2ec2e49cfa9957f71345b204dc248f12ba2b048a9cc7df2f2f6baa08e1e169731c44

        Download Submit

      • memory/2040-0-0x000007FEF6093000-0x000007FEF6094000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2040-1-0x0000000000F10000-0x0000000000F2A000-memory.dmp

        Filesize

        104KB

        Download

      • memory/2040-2-0x000007FEF6090000-0x000007FEF6A7C000-memory.dmp

        Filesize

        9.9MB

        Download

      • memory/2040-30-0x000007FEF6093000-0x000007FEF6094000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2040-31-0x000007FEF6090000-0x000007FEF6A7C000-memory.dmp

        Filesize

        9.9MB

        Download

      • memory/2040-32-0x000007FEF6090000-0x000007FEF6A7C000-memory.dmp

        Filesize

        9.9MB

        Download

      • memory/2596-7-0x000000001B640000-0x000000001B922000-memory.dmp

        Filesize

        2.9MB

        Download

      • memory/2596-8-0x00000000022D0000-0x00000000022D8000-memory.dmp

        Filesize

        32KB

        Download

      • memory/2864-14-0x000000001B520000-0x000000001B802000-memory.dmp

        Filesize

        2.9MB

        Download

      • memory/2864-15-0x00000000029F0000-0x00000000029F8000-memory.dmp

        Filesize

        32KB

        Download