General

  • Target

    83e79cb64075989a2f7887f3b079b8dfeed2b79c0e1e7626e20a5db8426459b4

  • Size

    598KB

  • Sample

    241016-pqmb4szbmb

  • MD5

    32b928080ebd486a6542755fecc9b4c1

  • SHA1

    bd1a02644f27d60c4b029a1c2b8221631e76e1fe

  • SHA256

    83e79cb64075989a2f7887f3b079b8dfeed2b79c0e1e7626e20a5db8426459b4

  • SHA512

    8d5f6b1b2f66100cd01c29d865a39e83463ecf35bf0b1b8ded20eb2003b71b647bd38ecff3dd355510c0654aa96cab0a88beb8ec219588143bc47ceac70af7fb

  • SSDEEP

    12288:TBxDDPsePuWA6ocBAJEKp5SCwh2pYqgAlWBa2NzL00vGj2Fyq:THPa6ocFKpEGxEVL00uj2Fl

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.apexrnun.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    dU*wU0)yR;?4q|-#

Targets

    • Target

      fEv4R2ahiLCQa5O.exe

    • Size

      638KB

    • MD5

      dbca4dfc56a3a8e5207a6ca4ecf941e5

    • SHA1

      062c4c90724f3700e239aef60ce567cfae518db4

    • SHA256

      9085dc203b9498343a992249942f8b6408180baa2bba58fb799c81a0d1855686

    • SHA512

      df2a6a8cf5f3fb676cbd6cc3d3f00dcc76183412213fccda1bc63e63bb8f81ecfa5a29293e61bbf01231c6208b0d80c16d367a56616eb8ab542bdf3c0006912c

    • SSDEEP

      12288:zUwqkE/ZBxDBP4Kzg0yWAbjRvmZprNh9vMVotriOoxtHkD3WWRIb1jzCMcEQ:zUwm/Z9/zKJvmZprNLMOtlFDWb1zCr

    • 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