kakaotalk[.]zone

Analysis of the domain kakaotalk.zone confirms active brand-impersonation phishing targeting ChatGPT users. The domain was registered on February 21, 2026, through NiceNIC International Group Co., Limited, a registrar frequently associated with high-risk domains. Infrastructure analysis reveals Cloudflare hosting (AS13335) with nameservers justin.ns.cloudflare.com and margot.ns.cloudflare.com, resolving to IP 121.53.221.97, geolocated in the United States. The site currently returns HTTP status 521, indicating a server-side error or deliberate misconfiguration, while employing Cloudflare technologies and HTTP/3 for traffic obfuscation.

Gridinsoft assigns a trust score of 0/100, and the domain appears on three security blocklists, including PhishDestroy, MetaMask, and SEAL. Two of 93 security vendors on VirusTotal flag the domain as malicious, though the absence of additional detections does not imply safety. The SSL certificate is issued by Google Trust Services (WE1), a common choice for both legitimate and malicious sites leveraging Cloudflare. The page title '카카오' (Kakao) contrasts with the reported brand target, ChatGPT, suggesting either a deliberate misdirection or a template mismatch.

Defenders should note the domain's active status and high-risk indicators, including registrar history, Cloudflare obfuscation, and blocklist presence. While the exact phishing mechanism remains unconfirmed due to the HTTP 521 status, the combination of brand impersonation, low trust scores, and security vendor detections justifies immediate blocking. Network administrators are advised to monitor associated IPs and nameservers for related malicious activity, as this infrastructure may be reused across multiple campaigns.