General

  • Target

    74e5336cba0e80912e859b7dfc67820f6b42e2e271499c2114dd3d3e2490b173

  • Size

    603KB

  • Sample

    240925-rg8j4ashld

  • MD5

    81ca97a1bf84219a30c2e6dc08be2aab

  • SHA1

    5546f3088ef1b7b4baa666ed0c5c11abba981505

  • SHA256

    74e5336cba0e80912e859b7dfc67820f6b42e2e271499c2114dd3d3e2490b173

  • SHA512

    0a01bbd4880998cc179c21d26dde424db3090166db177dbb4fdb297f56b8abf0fd8056bc48826055c6372521df16f51c481c15faa1b3305f5eee2619ee125746

  • SSDEEP

    12288:mvNsDae+qhi/iZQEWnLO6UYiqoRLnmcTP3hl/B9x/2BCNVAMIZqwQfbUzLV4CwI:m1E53hi/qWn74pl/B9xHNVASwQIfD

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.apexrnun.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    %qroUozO;(C2Rlyb

Targets

    • Target

      w0tV0GxzmSBYvqL.exe

    • Size

      654KB

    • MD5

      45eda7a4e206150fc3550958d4b24e57

    • SHA1

      756500ad5d3329ad3bc0d5ecd4501863060868ae

    • SHA256

      29779ede9aaaa44bb3e2e2ff0ad2cb9fe642a08259584f5a01e593a1341d540c

    • SHA512

      c9fd38042159ce96e426db47c1624bcedee9fa0711d0c92c08d568d25a79d37fcf22f766c29c7137d9af09c3c8c572e0088d1f835af290777b5891d33b9fb5d8

    • SSDEEP

      12288:vL38bQb5qhitiZQb83wuCZ57C2b+ghLQHhlFBfx/kBCxtAMIZ9KbWPR6o:0IIhitSY5m2CgZ+lFBfxNxtAQbCR6o

    • AgentTesla

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

    • 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