General

  • Target

    d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406

  • Size

    573KB

  • Sample

    220415-plb1kscad2

  • MD5

    0f658a7d511ee7205d61a7474e9c053e

  • SHA1

    4bbb4f5c695e26ec2d11f18647cacbd8a2bfee4f

  • SHA256

    d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406

  • SHA512

    70a29e983661c5eb9c419823dd381824cae6767dbeca0752e49afb3d729c7f40f870ab6186a26ccc50c116ff4eb1b860309ba8b357e90d050b57477b30d7fcda

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.shamstone.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    fo20192020

Targets

    • Target

      d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406

    • Size

      573KB

    • MD5

      0f658a7d511ee7205d61a7474e9c053e

    • SHA1

      4bbb4f5c695e26ec2d11f18647cacbd8a2bfee4f

    • SHA256

      d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406

    • SHA512

      70a29e983661c5eb9c419823dd381824cae6767dbeca0752e49afb3d729c7f40f870ab6186a26ccc50c116ff4eb1b860309ba8b357e90d050b57477b30d7fcda

    • AgentTesla

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

    • Meta Stealer Stealer

      Meta Stealer steals passwords stored in browsers, written in C++.

    • AgentTesla Payload

    • 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

    • 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