mercadolibreui[.]com

This domain, mercadolibreui.com, is classified as a high-risk generic phishing threat. Analysis indicates it is actively targeting users of the legitimate MercadoLibre platform, likely through fraudulent login pages or payment redirection schemes designed to harvest credentials and financial data. The domain’s infrastructure and detection metrics confirm its malicious intent, with no legitimate use case identified. Infrastructure analysis reveals the following technical indicators: mercadolibreui.com was registered on July 07, 2026, through Dominet (HK) Limited, a registrar frequently associated with abusive domains. It resolves to the IP address 202.162.109.120, which has no prior association with legitimate MercadoLibre services. The domain is flagged by 15 out of 95 security vendors on VirusTotal, a detection rate consistent with confirmed phishing campaigns. It employs a Let’s Encrypt SSL certificate, which, while providing encryption, does not validate legitimacy. No reputable blocklists or trust scores currently endorse this domain, further confirming its fraudulent nature. Mitigation steps for this specific threat type include immediate blocking of the domain and its resolving IP (202.162.109.120) at the network perimeter. Organizations should deploy email and web filtering rules to prevent user access, particularly for employees or customers who may interact with MercadoLibre. Endpoint protection solutions should be updated to recognize the domain’s indicators of compromise (IoCs), including its SSL certificate fingerprint and associated IP. User awareness training should emphasize the risks of credential submission on unfamiliar domains, even if they mimic trusted brands. Incident response teams should monitor for any successful connections to this domain, as they may indicate compromised credentials or ongoing fraud attempts.