General

  • Target
    f857735b668966b542097ff430592eb7.exe
  • Size 446KB
  • Sample230106-l3ydcsff78
  • SHA256 e4ef15651aa011744cab2c3581c4ae6234744da855df26f50f63a64a2c1034f9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Targets

    • Target
      f857735b668966b542097ff430592eb7.exe
    • Size 446KB
    • SHA256 e4ef15651aa011744cab2c3581c4ae6234744da855df26f50f63a64a2c1034f9
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks