General

  • Target

    37305b2adb7c1a41d8119f4c7468a05f86fcaabda638e9bdbcf2c41be283d4ce

  • Size

    781KB

  • Sample

    241016-bessvsvcmb

  • MD5

    590e89df151b7319bc09af9a0fc5bbdd

  • SHA1

    8785e3cfd74e0924aa79551bf8515b7e9bd4539c

  • SHA256

    37305b2adb7c1a41d8119f4c7468a05f86fcaabda638e9bdbcf2c41be283d4ce

  • SHA512

    d7e22133f6c25ebcfba11fd29d1d001c07ed27ee03e4da804cf954045993d7891c2bd266b434407a5494eaa3f945a9d18f75b8e19da9dbbfff4cc62a79b306fa

  • SSDEEP

    12288:cX4+v0c0epjTrX9/DQQxPEcB/tYd9uafBYGGG:ctXTB7HxPEcB/lafBYG1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.concaribe.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ro}UWgz#!38E

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.concaribe.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ro}UWgz#!38E

Targets

    • Target

      37305b2adb7c1a41d8119f4c7468a05f86fcaabda638e9bdbcf2c41be283d4ce

    • Size

      781KB

    • MD5

      590e89df151b7319bc09af9a0fc5bbdd

    • SHA1

      8785e3cfd74e0924aa79551bf8515b7e9bd4539c

    • SHA256

      37305b2adb7c1a41d8119f4c7468a05f86fcaabda638e9bdbcf2c41be283d4ce

    • SHA512

      d7e22133f6c25ebcfba11fd29d1d001c07ed27ee03e4da804cf954045993d7891c2bd266b434407a5494eaa3f945a9d18f75b8e19da9dbbfff4cc62a79b306fa

    • SSDEEP

      12288:cX4+v0c0epjTrX9/DQQxPEcB/tYd9uafBYGGG:ctXTB7HxPEcB/lafBYG1

    • AgentTesla

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

    • 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