coinex[.]gdn

The domain coinex.gdn was observed hosting a Google impersonation campaign that has since been taken offline. Infrastructure analysis shows the domain resolved to IP address 104.21.24.229, which belongs to Cloudflare, Inc. (AS13335) and is geolocated in the United States. The authoritative name servers are alla.ns.cloudflare.com and sonny.ns.cloudflare.com, confirming the use of Cloudflare's DNS service. The TLS certificate presented by the site was issued by Google Trust Services under the WE1 identifier, a detail that may have been employed to increase perceived legitimacy. The page title returned by the server was "CoinEx", and the site advertised technology stacks including Ant Design, React, Amazon Web Services, HSTS, Cloudflare Browser Insights, Cloudflare, and HTTP/3, indicating a modern web framework hosted on cloud infrastructure.

Detection data shows that 16 of 95 security vendors on VirusTotal flagged the domain, and the site was listed on a single external security blocklist. It was also blocked by the PhishDestroy feed. The Gridinsoft trust scoring system assigned a score of 0 out of 100, reflecting a high confidence in malicious intent. The campaign was classified as a tech support scam, and the brand target was identified as Google.

Defenders should add coinex.gdn and its resolved IP 104.21.24.229 to their deny or monitoring lists, especially where Cloudflare‑derived traffic is permitted. Correlate any internal logs that reference these IPs or the Cloudflare name servers to identify potential exposure. Although the domain is currently offline, threat‑intelligence platforms should retain the indicator set for future use, and security solutions should continue to reference the 16 vendor detections and the blocklist entry to prevent re‑use of the infrastructure in subsequent campaigns.