General

  • Target
    RFQ-PR# PR1787523 (BA).doc.exe
  • Size 456KB
  • Sample201109-3cheym4ala
  • SHA256 82d3edc9ad7ba25feca5ef08641b0f030d92faa5dec17f3148e062b727a0240c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.toorsteel.com

  • Port

    587

  • Password

    6652372

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.toorsteel.com

  • Port

    587

  • Password

    6652372

Targets

    • Target
      RFQ-PR# PR1787523 (BA).doc.exe
    • Size 456KB
    • SHA256 82d3edc9ad7ba25feca5ef08641b0f030d92faa5dec17f3148e062b727a0240c
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • Modifies Windows Defender Real-time Protection settings

    • AgentTesla Payload

    • rezer0

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • 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.

    • Windows security modification

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks