General

  • Target
    4b53a882fc87d037002401e58db022d2d9436c4e591b9f8b6817286267074295
  • Size 393KB
  • Sample220712-mcqq9sgfb6
  • SHA256 4b53a882fc87d037002401e58db022d2d9436c4e591b9f8b6817286267074295
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.cpworldindia.com

  • Port

    587

  • Password

    imprtcs@2019

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.cpworldindia.com

  • Port

    587

  • Password

    imprtcs@2019

Targets

    • Target
      RFQ.exe
    • Size 414KB
    • SHA256 6de7efc9e04cb4db0acc603a7ed700b186d0545acd0e8e84a1d8cce668202dc8
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    • suricata: ET MALWARE AgentTesla Exfil Via SMTP

      suricata: ET MALWARE AgentTesla Exfil Via SMTP

    • AgentTesla payload

    • ReZer0 packer

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

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks