General

  • Target
    enjoy.bat
  • Size 74B
  • Sample260531-cqs4faax4q
  • SHA256 d06e32f76a1ed42e68d795d825067b4bb7da2bb5daf0dffa340b506b81e4e250
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • xworm

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    XClient.exe

  • localhost

    127.0.0.1

Targets

    • Target
      enjoy.bat
    • Size 74B
    • SHA256 d06e32f76a1ed42e68d795d825067b4bb7da2bb5daf0dffa340b506b81e4e250
    • MD5 SHA1 SHA512 TLSH
    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks