General

  • Target

    QuickSetup.exe

  • Size

    4.7MB

  • Sample

    240711-s6sevatann

  • MD5

    04b18e6ea8c1cb84434ef3564e206ac6

  • SHA1

    d0b4772cd7b9e1567f614a294a998dcda5500690

  • SHA256

    0f849453310d6fec8f147a81f45b1932f21dc92053704234a393d625ea7da840

  • SHA512

    369f7f70e958f776b73f1a8be39aaba80ecc2e3b6a64f2c4214368fad955727998064debc7ed2cceef837a80017ad4796579c47305c7996296528c7a80feb8a4

  • SSDEEP

    3072:YJWxTtu4aOcZAkAcWDAi0cPF5UKHWl6+mVP15UjlU9hBGDayCxE1QrJs93Bz65/h:c4JSAYWPUAWlClUjlU9hBUEe93xBt25l

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    KMSauto.exe

  • pastebin_url

    https://pastebin.com/raw/yDh2MHWR

Targets

    • Target

      QuickSetup.exe

    • Size

      4.7MB

    • MD5

      04b18e6ea8c1cb84434ef3564e206ac6

    • SHA1

      d0b4772cd7b9e1567f614a294a998dcda5500690

    • SHA256

      0f849453310d6fec8f147a81f45b1932f21dc92053704234a393d625ea7da840

    • SHA512

      369f7f70e958f776b73f1a8be39aaba80ecc2e3b6a64f2c4214368fad955727998064debc7ed2cceef837a80017ad4796579c47305c7996296528c7a80feb8a4

    • SSDEEP

      3072:YJWxTtu4aOcZAkAcWDAi0cPF5UKHWl6+mVP15UjlU9hBGDayCxE1QrJs93Bz65/h:c4JSAYWPUAWlClUjlU9hBUEe93xBt25l

    • Detect Xworm Payload

    • XenArmor Suite

      XenArmor is as suite of password recovery tools for various application.

    • 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.

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • UPX packed file

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • 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

MITRE ATT&CK Enterprise v15

Tasks