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Microsoft SharePoint users

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インシデント 10682 Report
AI-Powered Presentation Tool Gamma Implicated in Multi-Stage Phishing Campaign

2025-04-15

Attackers reportedly exploited Gamma, an AI-powered presentation tool, to create convincing presentation pages that hosted links to a spoofed Microsoft SharePoint login portal. The phishing flow allegedly used compromised email accounts, Cloudflare Turnstile for bot evasion, and adversary-in-the-middle (AiTM) tactics to validate credentials in real time and capture session cookies. The campaign aimed to bypass MFA and compromise accounts.

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Unknown threat actors

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Unknown threat actors leveraging Gamma

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Unknown AiTM phishing campaign actors

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Gamma

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Microsoft

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Recipients of phishing emails sent from compromised accounts

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Enterprises relying on Microsoft 365 and identity services

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Organizations whose employees interacted with Gamma-hosted phishing content

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Cloudflare Turnstile

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Microsoft SharePoint

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Compromised email accounts

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AiTM phishing frameworks

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