General

  • Target

    f7e8acb9ce13f8754aa9fd67d3857afc.exe

  • Size

    2.5MB

  • Sample

    240625-frzt6avgjk

  • MD5

    f7e8acb9ce13f8754aa9fd67d3857afc

  • SHA1

    fcb487f57452a0d46c90bfcb103ebfa7e6d0a5bb

  • SHA256

    f783322d824a009bdcdf0ecfc1065d5039bf39c67321aedb81241eba942e2b78

  • SHA512

    8aba0e4145436ee6892b703a82b050066be14d9925acf1a5fa5a07b73ded9cee63fa3c939c11df20382cf14ee9e40b3502e9244c6d03810d3892e2159ae95cee

  • SSDEEP

    12288:Gza40RpKLO43mMyivZ30yV/4+Rr/2JyIVSztHDhbh7:GzaXnW9Z5ZEyd4E+TVSDbF

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.zoho.eu
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    office12#

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      f7e8acb9ce13f8754aa9fd67d3857afc.exe

    • Size

      2.5MB

    • MD5

      f7e8acb9ce13f8754aa9fd67d3857afc

    • SHA1

      fcb487f57452a0d46c90bfcb103ebfa7e6d0a5bb

    • SHA256

      f783322d824a009bdcdf0ecfc1065d5039bf39c67321aedb81241eba942e2b78

    • SHA512

      8aba0e4145436ee6892b703a82b050066be14d9925acf1a5fa5a07b73ded9cee63fa3c939c11df20382cf14ee9e40b3502e9244c6d03810d3892e2159ae95cee

    • SSDEEP

      12288:Gza40RpKLO43mMyivZ30yV/4+Rr/2JyIVSztHDhbh7:GzaXnW9Z5ZEyd4E+TVSDbF

    • AgentTesla

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

    • UAC bypass

    • Windows security bypass

    • 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.

    • Windows security modification

    • Checks whether UAC is enabled

    • 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