pub-91119ac3a0624373ac095908b14895cf[.]r2[.]dev

PhishDestroy identifies pub-91119ac3a0624373ac095908b14895cf.r2.dev as an active credential harvesting domain with an elevated risk level. This domain is engineered to mimic legitimate login portals, tricking users into surrendering sensitive credentials. The infrastructure leverages Cloudflare's R2 object storage service, which is frequently abused by threat actors to host phishing kits with minimal overhead. Users accessing this domain risk direct exposure to credential theft, potential account takeovers, and downstream attacks such as financial fraud or corporate espionage.

This domain was flagged by 10 of 95 security vendors on VirusTotal and is currently blocked by OpenPhish and PhishingArmy, among 2 publicly available blocklists. It resolves to IP address 104.18.54.45 and is secured with a Let's Encrypt SSL certificate, enhancing its perceived legitimacy. The domain’s Cloudflare-associated structure suggests recent provisioning, with no historical reputation data supporting trustworthiness. The combination of low detection rates, reliance on reputable infrastructure, and rapid deployment patterns indicates a sophisticated, opportunistic campaign likely targeting a broad user base.

Mitigation begins with immediate network-level blocking of both the domain and its resolving IP (104.18.54.45). Users should avoid navigating to this URL under any circumstance and verify any unsolicited login prompts through official channels. Administrators are advised to scan endpoints for signs of credential compromise using behavioral anomalies such as unusual login locations or repeated failed authentication attempts. Additionally, organizations should update DNS and firewall rules to block all traffic to *.r2.dev or any similar Cloudflare-based storage endpoints known to host malicious content. Enhanced monitoring of outbound DNS queries and HTTP(S) traffic is strongly recommended to prevent data exfiltration via compromised credentials.