whapptr4[.]com[.]cn

Analysis of whapptr4.com.cn indicates a confirmed phishing domain targeting users of WhatsApp Web, as evidenced by its page title 'WhatsApp網頁版｜居家遠距辦公專用網路通訊工具' and multiple security vendor detections. The domain was registered on June 16, 2026, through 万商云集（成都）科技股份有限公司, a registrar with a history of hosting fraudulent infrastructure. It resolves to IP address 188.114.97.3, part of Cloudflare's network (AS13335), a common tactic to obscure hosting origins and leverage Cloudflare's DDoS protection and SSL services. The domain uses Cloudflare nameservers (emerie.ns.cloudflare.com, ethan.ns.cloudflare.com) and employs Cloudflare Browser Insights and HTTP/3, further indicating an attempt to mimic legitimate service delivery while evading detection.

Security vendors have flagged this domain extensively: 16 of 91 vendors on VirusTotal classify it as malicious, and it appears on at least one security blocklist. Gridinsoft assigns a trust score of 0/100, reinforcing its classification as high-risk. The SSL certificate, issued by Google Trust Services (WE1), is valid but does not mitigate the domain's malicious intent, as phishing sites frequently use legitimate certificates to appear trustworthy. The domain is currently offline, likely taken down following detection by PhishDestroy or similar security services, but its infrastructure remains a potential vector for future campaigns.

Defenders should treat this domain as a confirmed phishing threat. Indicators of compromise include the IP address 188.114.97.3, the Cloudflare nameservers, and the domain's registration details. Organizations should block the domain at the DNS and proxy levels, monitor for connections to the associated IP, and alert users to the risks of WhatsApp Web phishing attempts. Given the domain's recent creation and rapid takedown, it is likely part of a larger, evolving phishing operation targeting remote workers under the guise of legitimate communication tools.