Microsoft Seizes RaccoonO365: 2024’s Largest Phishing-as-a-Service Credential Theft Takedown
In July 2024, Microsoft’s Digital Crimes Unit, in collaboration with law enforcement and cybersecurity partners, led a takedown of RaccoonO365—a subscription-based phishing-as-a-service platform operated by the threat group Storm-2246. Over 338 domains linked to RaccoonO365 were seized after being used to steal more than 5,000 Microsoft credentials across 94 countries since July 2024. The group’s kits, leveraging sophisticated evasion techniques and authentic-looking Microsoft branding, enabled cybercriminals to mount tax-themed and healthcare-targeted phishing campaigns, with sessions often bypassing multifactor authentication to harvest both passwords and session cookies. The breadth and pace of RaccoonO365’s operations highlight the commoditization and professionalization of cybercrime. This incident signals a shift towards scalable, as-a-service attack tools, increasing risks to organizations globally. Security teams must rapidly adapt to evolving TTPs and plug new identity-driven attack pathways, especially as phishing toolkits grow in accessibility and sophistication.
Kill Chain