General

  • Target

    Payments.exe

  • Size

    690KB

  • Sample

    240903-lfj78athpd

  • MD5

    3881d5e96f481fa93517fb1fcbfde2ef

  • SHA1

    1cb69809cd13ce69228dbfef2d59276bb63de71b

  • SHA256

    0eaf202c1c4591c0727d872d939ad5a6e491f4385302d6e692d7ba8ea9767a05

  • SHA512

    3db9bbad0d08c3aeaf2dd4ba848658d63f088032f7a18632dc9ce6db2558a6dbebfed791e6ed1f14b05d788baa45dad13d18994aa9795b23538e12d5a2578784

  • SSDEEP

    12288:uzjLf30WH0Mks8XWhXnnZV/eUCRVMXbfkQkr47dP7zgRLk5clCqvM7O16VF69In9:Ijj0yz9nH/eUC6bLs4ZoRLScZM7O6E69

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bonnyriggdentalsurgery.com.au
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    eL)rV@QBKA#m

Targets

    • Target

      Payments.exe

    • Size

      690KB

    • MD5

      3881d5e96f481fa93517fb1fcbfde2ef

    • SHA1

      1cb69809cd13ce69228dbfef2d59276bb63de71b

    • SHA256

      0eaf202c1c4591c0727d872d939ad5a6e491f4385302d6e692d7ba8ea9767a05

    • SHA512

      3db9bbad0d08c3aeaf2dd4ba848658d63f088032f7a18632dc9ce6db2558a6dbebfed791e6ed1f14b05d788baa45dad13d18994aa9795b23538e12d5a2578784

    • SSDEEP

      12288:uzjLf30WH0Mks8XWhXnnZV/eUCRVMXbfkQkr47dP7zgRLk5clCqvM7O16VF69In9:Ijj0yz9nH/eUC6bLs4ZoRLScZM7O6E69

    • 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