coinbase-bitcoin-com-81010[.]1403438155[.]workers[.]dev

The domain coinbase-bitcoin-com-81010.1403438155.workers.dev was registered on May 15, 2024 through Cloudflare, Inc. It resolves to IP address 188.114.97.3, which belongs to AS13335 Cloudflare, Inc. and is geolocated in the United States. The site presented the page title "Suspected phishing site | Cloudflare" and is classified as a Crypto Scam that impersonates Coinbase. Security telemetry shows a Google Trust Services / WE1 SSL certificate, HSTS enforcement, Cloudflare caching, and HTTP/3 support. The domain received a Gridinsoft trust score of 0 out of 100 and is listed on one security blocklist; it is also actively blocked by PhishDestroy.

VirusTotal analysis recorded three detections out of ninety‑five scanned vendors. An HTTP request returned a 403 status code, and the domain is currently taken offline. Nameserver information was not returned.

The observable evidence confirms that the infrastructure was deliberately leveraged to host a phishing page targeting Coinbase users, likely to harvest cryptocurrency credentials. Defenders should continue to block the IP and domain at perimeter and DNS layers, monitor for any re‑registration of the same sub‑domain pattern, and update threat‑intelligence feeds with the indicator set (domain, IP, SSL fingerprint). Additional investigation is limited by the offline status of the site, so future activity should be watched for re‑appearance or related domains using the same Cloudflare‑hosted IP range.