General

  • Target

    16db8f6a3ea389a7aa7f1f823d183336a98374d3310c28d867020ad4ab8888eb

  • Size

    932KB

  • Sample

    241225-bg1w9asqhj

  • MD5

    aa35929ae8e296cc78e754314e6f828e

  • SHA1

    3fa475c0f5ba23ae2fdc4306dea04391363d20d2

  • SHA256

    16db8f6a3ea389a7aa7f1f823d183336a98374d3310c28d867020ad4ab8888eb

  • SHA512

    36394f415fcf3d7aa212cc49aae754424422f513678e631300bc75c335f8843dbb64d3baabc39f757f9618beb95ee9df275b8ba97e854e4b5f2dd5aa9df1ba31

  • SSDEEP

    12288:deJ/sIKjehsimOMt+oNUg4nIrvSKCSJs+i4xv6RiMeV/3oBWlHAAdlGloNJqTab:YWimXbnmKrvhUs4w1xd5q

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Oola123@

Targets

    • Target

      16db8f6a3ea389a7aa7f1f823d183336a98374d3310c28d867020ad4ab8888eb

    • Size

      932KB

    • MD5

      aa35929ae8e296cc78e754314e6f828e

    • SHA1

      3fa475c0f5ba23ae2fdc4306dea04391363d20d2

    • SHA256

      16db8f6a3ea389a7aa7f1f823d183336a98374d3310c28d867020ad4ab8888eb

    • SHA512

      36394f415fcf3d7aa212cc49aae754424422f513678e631300bc75c335f8843dbb64d3baabc39f757f9618beb95ee9df275b8ba97e854e4b5f2dd5aa9df1ba31

    • SSDEEP

      12288:deJ/sIKjehsimOMt+oNUg4nIrvSKCSJs+i4xv6RiMeV/3oBWlHAAdlGloNJqTab:YWimXbnmKrvhUs4w1xd5q

    • 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