General

  • Target
    fec310d94ce1dc601f6721c5b3745ad98c0b981636e75bde7140dfaab312ba17
  • Size 154KB
  • Sample261102-w37bdayv9p
  • SHA256 fec310d94ce1dc601f6721c5b3745ad98c0b981636e75bde7140dfaab312ba17
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • vallxx.duckdns.org:4689

Mutex
  • LZBDpGU2NGqFwoUo

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.brightlearning.com.my

  • Port

    21

  • Password

    Lys@zw)GiT1qxo=k

Targets

    • Target
      Factura proforma impagada.vbs
    • Size 199KB
    • SHA256 8bd896323c194a21e854269411af1cce7d0f240f1038af03aaf5c4ca6f94d460
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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 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.

    • Accesses Microsoft Outlook profiles

    • Executes a VBScript file via the Windows Script Host.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks