General

  • Target

    a60a8d9651248980e0191bab60ff352653df5cf3047b578ded01ad8096f08ffb.exe

  • Size

    697KB

  • Sample

    240519-b8l76scb8s

  • MD5

    244abef8630131d5327310feabe00de5

  • SHA1

    774a09f5bc536f8c6c6fcbf421494e85d3294610

  • SHA256

    a60a8d9651248980e0191bab60ff352653df5cf3047b578ded01ad8096f08ffb

  • SHA512

    8e715d6541c0077e059630b0d562c725256992fcd8e59f241fe4492955c79d5c0ce068a0c682e37f6d332786ebc798c5cf1e33eef4ee7b7dd5669383e51824a8

  • SSDEEP

    12288:VTdrLbDZaNRpTAbiQKh4KT0KDN6mUuUN450+//u3msFeJboJ4h7EHLkplol:vLDZMRpOb4MmJUl+3u2dboJ46kXo

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.adgumrukmusavirligi.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    GizCvk2019!.

Targets

    • Target

      a60a8d9651248980e0191bab60ff352653df5cf3047b578ded01ad8096f08ffb.exe

    • Size

      697KB

    • MD5

      244abef8630131d5327310feabe00de5

    • SHA1

      774a09f5bc536f8c6c6fcbf421494e85d3294610

    • SHA256

      a60a8d9651248980e0191bab60ff352653df5cf3047b578ded01ad8096f08ffb

    • SHA512

      8e715d6541c0077e059630b0d562c725256992fcd8e59f241fe4492955c79d5c0ce068a0c682e37f6d332786ebc798c5cf1e33eef4ee7b7dd5669383e51824a8

    • SSDEEP

      12288:VTdrLbDZaNRpTAbiQKh4KT0KDN6mUuUN450+//u3msFeJboJ4h7EHLkplol:vLDZMRpOb4MmJUl+3u2dboJ46kXo

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks