General

  • Target

    f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763

  • Size

    888KB

  • Sample

    241124-benh5swlat

  • MD5

    dfe7fa7881d643dc97eaa8f0e7478f28

  • SHA1

    b3e7065ed4191388f231db06b4b115ca7b64cd2f

  • SHA256

    f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763

  • SHA512

    425ed492945053bfae55675da577aa3a4038ea337948c3f41a78b9c52602b6d5f48c28f1a18fdcc1f71638906461bc446736e4e606756f85bcc16d22b7a4182f

  • SSDEEP

    12288:Y7zhNdyvUIZbV/O1bJGOD0CInmWC4H9bz97tk5J6f0uZzn9zF:Y7MvDB/l00CInCwvBO6NZz9z

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vistakencana.com.my
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    m33R3bus!

Targets

    • Target

      f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763

    • Size

      888KB

    • MD5

      dfe7fa7881d643dc97eaa8f0e7478f28

    • SHA1

      b3e7065ed4191388f231db06b4b115ca7b64cd2f

    • SHA256

      f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763

    • SHA512

      425ed492945053bfae55675da577aa3a4038ea337948c3f41a78b9c52602b6d5f48c28f1a18fdcc1f71638906461bc446736e4e606756f85bcc16d22b7a4182f

    • SSDEEP

      12288:Y7zhNdyvUIZbV/O1bJGOD0CInmWC4H9bz97tk5J6f0uZzn9zF:Y7MvDB/l00CInCwvBO6NZz9z

    • AgentTesla

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

    • Agenttesla family

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks