Sophisticated Microsoft Spoof Targets Financial Departments

This post details a sophisticated Microsoft 365 spoofing campaign that evaded native defenses and targeted financial departments. It highlights the use of Microsoft-themed sender domains, PDF/HTM/HTML attachments, and advanced phishing kits. The analysis of the campaign's techniques, including domain registration timing, compromised email accounts, and the use of JavaScript escape functions for credential harvesting sites, contributes to the understanding and detection of advanced Business Email Compromise (BEC) attacks.