app[.]coinbaseweb3co[.]cc

Analysis of app.coinbaseweb3co.cc indicates a high‑risk brand‑impersonation campaign targeting Coinbase users. The domain was registered on November 11, 2025 through Dynadot LLC and is currently taken offline, returning HTTP 403 for all requests. DNS resolution points to the IPv6 address 2606:4700:3032::6815:4004, which belongs to AS13335 Cloudflare, Inc., confirming that the infrastructure is hosted behind Cloudflare’s network. Both authoritative nameservers, alberto.ns.cloudflare.com and opal.ns.cloudflare.com, are Cloudflare‑provided, and the site presents a valid SSL certificate issued by Google Trust Services (WE1), with HTTP Strict Transport Security (HSTS) and HTTP/3 enabled, suggesting an attempt to appear legitimate.

Google Safe Browsing has flagged the domain for social‑engineering activity, and VirusTotal records show that 16 of 95 security vendors have flagged it as malicious, reinforcing the suspicion of abuse. The domain appears on at least one public blocklist and is specifically listed by PhishDestroy as a crypto‑scam vector. The page title returned by the server is "首頁", the Chinese term for "home page", but no further content has been captured, leaving the exact visual or functional characteristics of the site unknown.

The intelligence explicitly states that the domain impersonates Coinbase, aligning with the declared scam type of a crypto‑related fraud. Defenders should immediately block the domain at perimeter and endpoint layers, monitor DNS queries for the associated Cloudflare IP range, and consider adding the domain to internal threat‑intel feeds. Continuous observation is advised to detect any re‑activation or migration to new infrastructure, as the current offline status does not preclude future use.