onbuy[.]top

Analysis of onbuy.top indicates it is actively hosting a credential phishing campaign. The domain resolves to the IPv4 address 43.152.25.74, which is assigned to AS139341 ACE and geolocated in Hong Kong. DNS resolution is provided by a.dnspod.com, b.dnspod.com, and c.dnspod.com. The site presents an HTTP 200 response and serves a page titled “Sign in”. TLS is supplied by a Let’s Encrypt R12 certificate, and HTTP Strict Transport Security (HSTS) is enforced. The web stack is identified as Node.js running behind Nginx, with frontend components built using React, UmiJs, Ant Design, and related libraries. The domain was registered on August 7 2025 through Gname.com Pte. Ltd. and has been flagged by multiple security vendors, with 7 of 95 VirusTotal scanners reporting malicious activity. It is listed on the PhishDestroy blocklist, carries a Gridinsoft trust score of 0 out of 100, and appears on a single additional security blocklist. The threat type is classified as credential phishing, and the risk level is assessed as high. While the page content beyond the title has not been publicly disclosed, the combination of a login‑oriented title, active TLS, and the identified technology stack is consistent with a credential‑harvesting site. Defenders should block the domain and its associated IP address at perimeter defenses, monitor DNS queries for the domain and its authoritative nameservers, and update endpoint protection signatures to include the latest VirusTotal detections. Continuous observation of the IP’s activity and periodic re‑scanning are recommended to detect any changes in payload or infrastructure.