General

  • Target
    PO-20456200 Ningbo Xingrui Electronic.exe
  • Size 996KB
  • Sample200827-zyafgnqns2
  • SHA256 6bdce9236cb2c45000de6d3b5c8253d4f247c68d802f990e2f244d03d93d9df3
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.nsmelectronics.com

  • Port

    587

  • Password

    chimaobi@

Targets

    • Target
      PO-20456200 Ningbo Xingrui Electronic.exe
    • Size 996KB
    • SHA256 6bdce9236cb2c45000de6d3b5c8253d4f247c68d802f990e2f244d03d93d9df3
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks