General

  • Target

    df3325fba80354987645e107d3166cfe0b97c56818903e42bb938ce6bff6675c

  • Size

    763KB

  • Sample

    241016-zkvreasane

  • MD5

    0e0627eccfb3a1a5815cbc5947096112

  • SHA1

    7d54823e2811842627f0deabe83808ac2dcf31f1

  • SHA256

    df3325fba80354987645e107d3166cfe0b97c56818903e42bb938ce6bff6675c

  • SHA512

    679c719031f680f61165af2484edb6fe657d586d6fa6cc1858aec39f269048922a908e2610c8f7880ceb2152b79fb9c29915eef1744164ca87cd5dd845d33326

  • SSDEEP

    12288:76bwoIc0N0I05GYVYaQF0sVxrRIW/RfZ+2vKeV+YaQBX2FRbrBcSF:7QwoIc0yI0kYSiseW5fLV8YuZc

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Password: rB^PG*h 6.

Targets

    • Target

      df3325fba80354987645e107d3166cfe0b97c56818903e42bb938ce6bff6675c

    • Size

      763KB

    • MD5

      0e0627eccfb3a1a5815cbc5947096112

    • SHA1

      7d54823e2811842627f0deabe83808ac2dcf31f1

    • SHA256

      df3325fba80354987645e107d3166cfe0b97c56818903e42bb938ce6bff6675c

    • SHA512

      679c719031f680f61165af2484edb6fe657d586d6fa6cc1858aec39f269048922a908e2610c8f7880ceb2152b79fb9c29915eef1744164ca87cd5dd845d33326

    • SSDEEP

      12288:76bwoIc0N0I05GYVYaQF0sVxrRIW/RfZ+2vKeV+YaQBX2FRbrBcSF:7QwoIc0yI0kYSiseW5fLV8YuZc

    • 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.

    • 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