General

  • Target

    DEMURRAGE INVOICE.bat

  • Size

    697KB

  • Sample

    240912-g8nnwswalq

  • MD5

    26592310cd0668310fd082bdcbe67a34

  • SHA1

    ec06a6a20f0c2f21d44639915d415ad010cdd74f

  • SHA256

    09ff4bcebea6598159b1341704093ab1ff7e2a1eecd0cdc38cb865edb5a35b62

  • SHA512

    914437329e40b531f4f9d231cba77fff5549d724ef72c2788ebac3cfd3560b17c63cbd0e2018bfdb27d3e32eb509bbf767b8a2f1aeb833fd59568b86f6a3119a

  • SSDEEP

    12288:Gr2+Ub83qcHT4ix3dzjLx1F97kv/pg1Rac9Viwt5XHkB:MUbQ4ix3dzjLx1r7U/GWcniw5U

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5862304010:AAGELNW7Uh-qnFDDQucOIsNATlN1Btw8R-8/

Targets

    • Target

      DEMURRAGE INVOICE.bat

    • Size

      697KB

    • MD5

      26592310cd0668310fd082bdcbe67a34

    • SHA1

      ec06a6a20f0c2f21d44639915d415ad010cdd74f

    • SHA256

      09ff4bcebea6598159b1341704093ab1ff7e2a1eecd0cdc38cb865edb5a35b62

    • SHA512

      914437329e40b531f4f9d231cba77fff5549d724ef72c2788ebac3cfd3560b17c63cbd0e2018bfdb27d3e32eb509bbf767b8a2f1aeb833fd59568b86f6a3119a

    • SSDEEP

      12288:Gr2+Ub83qcHT4ix3dzjLx1F97kv/pg1Rac9Viwt5XHkB:MUbQ4ix3dzjLx1r7U/GWcniw5U

    • AgentTesla

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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.

    • 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