mail[.]arnbsix[.]rumahsakit[.]de

The domain mail.arnbsix.rumahsakit.de is currently flagged as an active generic phishing infrastructure. It has been listed by PhishDestroy as a blocked source, and VirusTotal reports that 13 of 95 scanned security vendors have identified it as malicious. The domain appears on a single external security blocklist, confirming that at least one independent threat‑intelligence feed considers it hostile. Technical inspection shows the domain is delegated to the Cloudflare name servers aldo.ns.cloudflare.com and pat.ns.cloudflare.com, and resolves to the IPv4 address 103.52.114.215.

The use of Cloudflare’s DNS suggests that the operator is leveraging a reputable CDN to obscure the true origin of the hosting service and to gain resilience against takedown attempts. No additional metadata such as SSL certificate details, HTTP response codes, or page titles have been disclosed, leaving the exact content and the targeted brand or service unverified. Consequently, the precise phishing lure (e.g., credential‑capture page, login prompt) remains unknown, and analysts cannot confirm whether the site mimics a specific corporate login portal.

Defenders should treat the domain as high‑risk: block DNS resolution for mail.arnbsix.rumahsakit.de at the network perimeter, add the IP 103.52.114.215 to host‑based deny lists, and monitor for any outbound connections to that address. Continuous re‑scanning on VirusTotal and inclusion in internal threat‑intel feeds are recommended to capture any changes in detection scores or additional vendor observations. Organizations that employ email‑based authentication should alert users to the existence of this malicious domain and reinforce security awareness training regarding unsolicited credential requests.