General

  • Target

    edf10d14260b6616cfa9316be0a377f0cc958b4ccac4492e01d75e16554e4f26

  • Size

    768KB

  • Sample

    250115-vbraeaylev

  • MD5

    f124adc0878529f656be66100ae43df1

  • SHA1

    230ead3f4d42d4b84a6d9fa52d34827cc3097b6e

  • SHA256

    edf10d14260b6616cfa9316be0a377f0cc958b4ccac4492e01d75e16554e4f26

  • SHA512

    f08b97bf894fde033380e99287bcc10d35ab9d59448d57823d72fcf4cf2e6acc33e80d79fb11dd325d1ddfb47f180136238692dbae13c371e97330e441dc25bf

  • SSDEEP

    24576:Oe9+R2axp5tPuXjcHf4Y2LAMUNtdepf35OM:OeQR2axtuXQ/4Ybt4POM

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.strato.de
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Oy1)8JSu_qPx(rzV_{Xu

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      edf10d14260b6616cfa9316be0a377f0cc958b4ccac4492e01d75e16554e4f26

    • Size

      768KB

    • MD5

      f124adc0878529f656be66100ae43df1

    • SHA1

      230ead3f4d42d4b84a6d9fa52d34827cc3097b6e

    • SHA256

      edf10d14260b6616cfa9316be0a377f0cc958b4ccac4492e01d75e16554e4f26

    • SHA512

      f08b97bf894fde033380e99287bcc10d35ab9d59448d57823d72fcf4cf2e6acc33e80d79fb11dd325d1ddfb47f180136238692dbae13c371e97330e441dc25bf

    • SSDEEP

      24576:Oe9+R2axp5tPuXjcHf4Y2LAMUNtdepf35OM:OeQR2axtuXQ/4Ybt4POM

    • AgentTesla

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

    • Agenttesla family

    • 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.

    • Adds Run key to start application

    • 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