General

  • Target
    Teklif talebi.xls
  • Size 409KB
  • Sample240606-sa124sgf73
  • SHA256 436b6611d9594f8c40663b160281894e79f2aeeead84cd2b0d5452c88558c220
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot6570006455:AAFCghQPj4tY9k8tF4ahsDcV52ZU-i5TnG0/

Targets

    • Target
      Teklif talebi.xls
    • Size 409KB
    • SHA256 436b6611d9594f8c40663b160281894e79f2aeeead84cd2b0d5452c88558c220
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Abuses OpenXML format to download file from external location

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks