General

  • Target

    c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe

  • Size

    635KB

  • Sample

    240923-bxwbpssfja

  • MD5

    1fb2088c9d4054cb8881b8065f8c7fcc

  • SHA1

    4adeea429e6ec3fd6c3ce62e184c61b4a1be12b1

  • SHA256

    c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622

  • SHA512

    f7935457e959d4ba4684483753e2ca02820fac4fc0c5d3f08a43108d85230dc62be4ad0dd437a276f4f10005ca585896e179a0e3e7ab6ea098b28d7076dc7bd7

  • SSDEEP

    12288:T/qRqjqYB2HqyF1ip9IfxWledlMq6mapp/VhwXyhl43E5aIsKtM:TqpUcrF+IZWljq1mp/Vh2yhl5lM

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bonnyriggdentalsurgery.com.au
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    eL)rV@QBKA#m

Targets

    • Target

      c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe

    • Size

      635KB

    • MD5

      1fb2088c9d4054cb8881b8065f8c7fcc

    • SHA1

      4adeea429e6ec3fd6c3ce62e184c61b4a1be12b1

    • SHA256

      c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622

    • SHA512

      f7935457e959d4ba4684483753e2ca02820fac4fc0c5d3f08a43108d85230dc62be4ad0dd437a276f4f10005ca585896e179a0e3e7ab6ea098b28d7076dc7bd7

    • SSDEEP

      12288:T/qRqjqYB2HqyF1ip9IfxWledlMq6mapp/VhwXyhl43E5aIsKtM:TqpUcrF+IZWljq1mp/Vh2yhl5lM

    • AgentTesla

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • 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 v15

Tasks