General

  • Target
    New Order.pdf.exe
  • Size 876KB
  • Sample210929-gkq44sdhak
  • SHA256 f7e23df2027195ee0a30647e149bd79cd77eccb8a1d82cd38cc74b364ba94a05
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.northbey-medical.com

  • Port

    587

  • Password

    XRG$jgA7

Targets

    • Target
      New Order.pdf.exe
    • Size 876KB
    • SHA256 f7e23df2027195ee0a30647e149bd79cd77eccb8a1d82cd38cc74b364ba94a05
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks