83721-cb[.]com
“Coinbase”
Resumen de las pruebas
The domain 83721-cb.com was registered on February 28, 2026 through NameSilo, LLC and immediately began serving a crypto‑related impersonation campaign targeting Coinbase users. The site’s HTML title is reported as "Coinbase", confirming a deliberate brand‑impersonation tactic. Infrastructure analysis shows the domain resolves to the IP address 172.67.149.196, which belongs to Cloudflare, Inc. (AS13335) and is therefore hosted behind a CDN edge network. The domain uses Cloudflare’s default nameservers (justin.ns.cloudflare.com and tia.ns.cloudflare.com) but does not present an SSL/TLS certificate, leaving the connection unencrypted.
No HTTPS endpoint was observed before the site was taken offline. Reputation checks indicate that 83721-cb.com is listed on three independent security blocklists and has been flagged by 17 of 93 vendors on VirusTotal, suggesting a moderate to high confidence of malicious intent. The site is currently reported as offline, which limits further content analysis; no page screenshots or HTML samples are available.
Defensive services have already taken action: PhishDestroy, MetaMask, and SEAL have each blocked the domain. Given the confirmed brand impersonation, the presence on multiple blocklists, and the detection rate on VirusTotal, security teams should continue to enforce deny‑list rules for the domain, monitor the associated IP range for any re‑activation, and consider adding the IP address to network‑level block policies. Continuous observation of Cloudflare‑originated traffic for similar patterns is advised, as threat actors often recycle CDN infrastructure for new campaigns.
Instantánea de evidencia enviada
- Enviado
- Registros del libro
- 1
- ID del caso
PD-20260228-D5CCD4- Título de la página capturada
- Coinbase
- Artefacto PDF
- Evidencia en PDF
Fundamento jurídico
Texto completo de la evidencia
Illegal Activities: Active phishing operation targeting victims
Fraud & Deception: Impersonation of legitimate services
Identity Theft: Collection of credentials under false pretenses
Applicable Laws (US):
18 U.S.C. § 1343 - Wire Fraud
18 U.S.C. § 1030 - Computer Fraud and Abuse Act (CFAA)
15 U.S.C. § 45 - FTC Act (Deceptive Practices)
Federal laws prohibit wire fraud, computer fraud, and deceptive business practices.
Action Required: This evidence-backed report demonstrates clear violations requiring suspension per your policies. Continued hosting exposes your organization to regulatory scrutiny and potential legal liability.
Data Coverage
Inteligencia de seguridad de red
| Detection System | Indicator | Verdict | Alert |
|---|---|---|---|
| Hagezi Threat Feed | 83721-cb.com |
malicious | Sinkholed |
| OpenDNS | 83721-cb.com |
phishing | Phishing Block |
| Cloudflare DNS | 83721-cb.com |
malicious | Sinkholed |
| DigiCert UltraDNS | 83721-cb.com |
malicious | Sinkholed |
| DNS4EU | 83721-cb.com |
malicious | Sinkholed |
| DNS4EU | api.83721-cb.com |
malicious | Sinkholed |
| Cloudflare DNS | api.83721-cb.com |
malicious | Sinkholed |
| Hagezi Threat Feed | api.83721-cb.com |
malicious | Sinkholed |
| DigiCert UltraDNS | api.83721-cb.com |
malicious | Sinkholed |
| OpenDNS | api.83721-cb.com |
phishing | Phishing Block |
Proceso de respuesta ante amenazas Pipeline
Cobertura de listas de bloqueo
10 fuentes externas supervisadas · instantánea del 10/08/2026
8 fuentes externas supervisadas Sin coincidencias
Cronología de detección
-
Cloudflare Radar
Análisis de Cloudflare Radar almacenado · Abrir análisis
-
Estado del dominio
Accesible → Inaccesible
-
Cloudflare Radar
Análisis de Cloudflare Radar almacenado · Abrir análisis
Captura guardada
Inteligencia de dominios
Detalles técnicosDNS, nombres TLS y marcas de tiempo
ICANN OVERSIGHT
Acreditación y contexto RAA
Acreditación y contexto RAA
Registrar accreditation and DNS abuse obligations
For this gTLD, the registrar above operates under an ICANN accreditation agreement. The links below provide the official fee schedule and current DNS abuse compliance guidance.
Accreditation is a contract, not a safety certification.
RAA §3.18 establishes abuse-contact and handling requirements. This report can document stored outbound notices and later technical observations; it does not by itself establish receipt, investigation, remediation, or contractual non-compliance.
Análisis de VirusTotal
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