General

  • Target
    SecuriteInfo.com.Suspicious.Win32.Save.a.7720.5364
  • Size 509KB
  • Sample220414-rz96mschfl
  • SHA256 8a8bfcc1479d1515623ce9217dcb0814ece18e75758102909eb2f67a29ddabfa
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.vivaldi.net

  • Port

    587

  • Password

    Success101@@

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.vivaldi.net

  • Port

    587

  • Password

    Success101@@

Targets

    • Target
      SecuriteInfo.com.Suspicious.Win32.Save.a.7720.5364
    • Size 509KB
    • SHA256 8a8bfcc1479d1515623ce9217dcb0814ece18e75758102909eb2f67a29ddabfa
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • Drops file in Drivers directory

    • 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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks