General

  • Target

    1bfe0097e024c7455bc0973ca320da229351ab046634e9326d5a0ab6c4cbc14b

  • Size

    596KB

  • Sample

    241117-bgzzyssjal

  • MD5

    ab740185b31f30f22edb07dc7d6867f6

  • SHA1

    5fd98ecf544b898f5e8609c7ed13847ee729eb66

  • SHA256

    1bfe0097e024c7455bc0973ca320da229351ab046634e9326d5a0ab6c4cbc14b

  • SHA512

    54f2e0cfa149a1159d6ab2c23947b589a081b84acee90115e005e7748c5e6456a403ab76f2f0f9dd4b9eb515f9221b44c61cf7c9a87297022699a51ba7107d15

  • SSDEEP

    12288:shix+bcrQH9mnis2V09jgS4iTE61wpwiTerLHQfSJX:R6jmniejgEg61wp/TeXg8

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6852245174:AAHgk_9s-tH6YNacTaCnQz56uJMggI0fZDw/

Targets

    • Target

      image.exe

    • Size

      1.8MB

    • MD5

      73c13ccef8a21994322a9d6088753294

    • SHA1

      7b3d167c9d3af83abe772040fe87507e08a56665

    • SHA256

      aa4b277c8b219071a9d1196920c5929ed3c7b368b14e2daf241e1001216c25b3

    • SHA512

      c8943fcfe0fa4da8c9b9e8cff0dbe032b806fa520eeceb4f05c56a95afe93b60ea4ae375d53ffb53194ee52c774961cad0209608a5aeb120439361ab534c2ac5

    • SSDEEP

      12288:Ehsv71fj25HTvgxSoog9so0aFj+HIbJCRTGvDsFbsQ4cp:E2p6pkSoeo0a44CRG7Ioi

    • AgentTesla

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

    • Agenttesla family

    • UAC bypass

    • Windows security bypass

    • 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.

    • Windows security modification

    • Checks whether UAC is enabled

    • 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