General

  • Target
    9b6deb970cd161b82df1faa5beb8d9261c6c9495f0db244a47499dcf9998d0a5.bin
  • Size 18.4MB
  • Sample260826-sn6vhsfl2t
  • SHA256 9b6deb970cd161b82df1faa5beb8d9261c6c9495f0db244a47499dcf9998d0a5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • XWorm V5.6

C2
  • 125.25.92.92:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • localhost

    127.0.0.1

Targets

    • Target
      Client-bootsfps.exe
    • Size 77KB
    • SHA256 faeca555b613c71cf015a37f8201c9e15daacef119b7c8a383b4b2cb86704db5
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Looks up external IP address via web service

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

    • Target
      Unname-Bootsfps.exe
    • Size 18.5MB
    • SHA256 20dddf2030677bbff03386edbd4249ab38a16ad15decccb063feeb4993c119fa
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: LunaStealer

      LunaStealer is an infostealer written in Python and packaged with Pyinstaller.

    • Command and Scripting Interpreter: PowerShell

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

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Disables automatic submission of suspicious files to Microsoft by Windows Defender

      Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

    • Loads dropped DLL

    • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.

      Uses the Powershell Add-MpPreference cmdlet to exclude paths from being scanned by Microsoft Defender.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks