General

  • Target

    f67b4f9bcb6968eb245d97f38246c25c2736f1c3aa90a1f62acf12df91d8623eN.exe

  • Size

    798KB

  • Sample

    241216-ak48eatqas

  • MD5

    23ec1b2da69f3e63540041a9ccd53840

  • SHA1

    e9b280977cc3ed1b9d7c8da006733840208c5380

  • SHA256

    f67b4f9bcb6968eb245d97f38246c25c2736f1c3aa90a1f62acf12df91d8623e

  • SHA512

    5914c87b8b1988e9a8022f99548065d4bb7089065da7ff84813d8be3c5901acb0f4d849d8ac47bbe46282dd9b6a68cda1e1402289a7de5963e4871420c02cac9

  • SSDEEP

    12288:o5dtLqh7pia1Ojze1Ur47uz/7lrn5h1P6XuAmoufkpDZ/7gX5s:YtfOx1Ur47elNhLd6t6

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mucahitaytekin.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Cream3040@

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      f67b4f9bcb6968eb245d97f38246c25c2736f1c3aa90a1f62acf12df91d8623eN.exe

    • Size

      798KB

    • MD5

      23ec1b2da69f3e63540041a9ccd53840

    • SHA1

      e9b280977cc3ed1b9d7c8da006733840208c5380

    • SHA256

      f67b4f9bcb6968eb245d97f38246c25c2736f1c3aa90a1f62acf12df91d8623e

    • SHA512

      5914c87b8b1988e9a8022f99548065d4bb7089065da7ff84813d8be3c5901acb0f4d849d8ac47bbe46282dd9b6a68cda1e1402289a7de5963e4871420c02cac9

    • SSDEEP

      12288:o5dtLqh7pia1Ojze1Ur47uz/7lrn5h1P6XuAmoufkpDZ/7gX5s:YtfOx1Ur47elNhLd6t6

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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