38,000+ FreeDrain Subdomains Found Exploiting SEO to Steal Crypto Wallet Seed Phrases
May 08, 2025
Malware / Cloud Security
Cybersecurity researchers have exposed what they say is an "industrial-scale, global cryptocurrency phishing operation" engineered to steal digital assets from cryptocurrency wallets for several years. The campaign has been codenamed FreeDrain by threat intelligence firms SentinelOne and Validin . "FreeDrain uses SEO manipulation, free-tier web services (like gitbook.io, webflow.io, and github.io), and layered redirection techniques to target cryptocurrency wallets," security researchers Kenneth Kinion, Sreekar Madabushi, and Tom Hegel said in a technical report shared with The Hacker News. "Victims search for wallet-related queries, click on high-ranking malicious results, land on lure pages, and are redirected to phishing pages that steal their seed phrases." The scale of the campaign is reflected in the fact that over 38,000 distinct FreeDrain sub-domains hosting lure pages have been identified. These pages are hosted on cloud infrastructure lik...