General

  • Target
    000183_004Sorters_BratneyCompaniesFeb2020.xlsm
  • Size 139KB
  • Sample200710-lckecpys82
  • SHA256 1509ca07d232b2bb379cd9aa007112beae4ca6c88039906f4faa94b8e7ce47f3
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    http://phanmemtinhtiendanang.com/modules/mod_verison/EventCYR.exe

Targets

    • Target
      000183_004Sorters_BratneyCompaniesFeb2020.xlsm
    • Size 139KB
    • SHA256 1509ca07d232b2bb379cd9aa007112beae4ca6c88039906f4faa94b8e7ce47f3
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Blacklisted process makes network request

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 entry to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks