General

  • Target

    c561f79451f89d62151c3c01db971fa2f93813b1c190e8dad600111b6e68543c

  • Size

    750KB

  • Sample

    240724-bzcmdazhpq

  • MD5

    cfb3b1cee475fed60cfd7ddb63e3021a

  • SHA1

    0df13ccd6cce6679d4525e54b264bfc0b772458a

  • SHA256

    c561f79451f89d62151c3c01db971fa2f93813b1c190e8dad600111b6e68543c

  • SHA512

    0943b45e0b7742981462fcfb785332fd67289c81c44d39798e2b9c02ad7f208e1cf7c5f036a658ca4787809b82f3dd1b836e9d5479e9fbfff0997f664839cb19

  • SSDEEP

    12288:ywuV8Wf5fjKcjnW1VebF6ieLCtox0mjdZvR2imR5Pan5DsxZvD+yEGu16q7gjkrm:ywlyAoW1C6i3ox0QZvE53Sn5DsxZvDWg

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      c561f79451f89d62151c3c01db971fa2f93813b1c190e8dad600111b6e68543c

    • Size

      750KB

    • MD5

      cfb3b1cee475fed60cfd7ddb63e3021a

    • SHA1

      0df13ccd6cce6679d4525e54b264bfc0b772458a

    • SHA256

      c561f79451f89d62151c3c01db971fa2f93813b1c190e8dad600111b6e68543c

    • SHA512

      0943b45e0b7742981462fcfb785332fd67289c81c44d39798e2b9c02ad7f208e1cf7c5f036a658ca4787809b82f3dd1b836e9d5479e9fbfff0997f664839cb19

    • SSDEEP

      12288:ywuV8Wf5fjKcjnW1VebF6ieLCtox0mjdZvR2imR5Pan5DsxZvD+yEGu16q7gjkrm:ywlyAoW1C6i3ox0QZvE53Sn5DsxZvDWg

    • 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.

    • 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