atacadaotmc.com.br hosted a fake login screen titled "Login — Completa Rio Webmail". It was built to harvest the email credentials of people who use Completa Rio's webmail service. PhishDestroy first flagged it on 2026-09-03. The site has been offline since 2026-09-18, and as of 2026-10-19 its DNS no longer resolves.
How the scam works
Webmail phishing usually starts with an email that warns of a full mailbox, a pending security check or an account suspension, and links to a page styled like the provider's sign-in form. Here the bait was a copy of the Completa Rio Webmail login. Anything typed into it went to the operators instead of the real service. With a working mailbox password, attackers can read private mail, reset passwords on other services tied to that address, and send fresh phishing to the victim's contacts from a trusted account.
Evidence
Seven of 89 VirusTotal engines marked the domain as malicious when it was checked on 2026-09-11: alphaMountain.ai, Forcepoint ThreatSeeker, Gridinsoft, Kaspersky, LevelBlue, SOCRadar and VIPRE. That is a modest count, but it comes from unrelated vendors that agree on the verdict. The domain also appears in four AlienVault OTX threat pulses and on the PhishDestroy blocklist.
Infrastructure
The domain was registered on 2026-08-28, only six days before PhishDestroy detected it. A newly registered domain going live almost immediately is typical of short-lived phishing campaigns. The site was hosted at 88.222.222.255 on a network in Cyprus, far from the Brazilian audience its .com.br name and branding addressed. It ran for about two weeks after detection before going dark.
What to do
If you entered your Completa Rio Webmail password on this page, change it now from the provider's official site. Use a new password you have never used elsewhere. Turn on two-factor authentication if it is offered, and check your mailbox for forwarding rules, filters or recovery details you did not set. Change the password on any other account that shared it, and warn your contacts to distrust unexpected messages sent from your address around that time. Defenders should block the domain and its hosting IP, search mail logs for messages linking to it, and reset credentials for any users who clicked through.
発行者 Let's Encrypt· stored validity ends in 82 days
Network & certificates
Stored technical evidence
Network & DNS
Resolved IP
88.222.222.255
Observed location
CY
Server header
hcdn
ネームサーバー 2
byte.dns-parking.com
pixel.dns-parking.com
Mail routing 2 MX records
mx1.hostinger.compriority 5
mx2.hostinger.compriority 10
Location describes the IP network.
TLS証明書
Issuer
Let's Encrypt
Valid until
2026-11-26 00:00:00
Validity
Within stored validity dates
Collection source
PhishDestroy collector
Saved certificate metadata. Certificate dates without a timezone are shown as stored. Transport encryption does not establish that the site is trustworthy.
Primary outcomeDNS 非アクティブreason: DNS NXDOMAIN80% confidence
Attributionsource: Dns Cache
Evidence layersAvailability: DNS inactiveContent: UnreachableDNS: NXDOMAINRegistration: Unknown
Latest HTTP observation不明Probe Inconclusive20%2026-10-19 01:15:30 UTC
RDAP registration不明
Observed timelinelast reachable: 2026-09-17 10:08:45 UTCcurrent episode first observed: 2026-09-30 16:14:55 UTCobserved RIP window: 2026-09-17 10:08:45 UTC → 2026-09-30 16:14:55 UTC · 318.10hmidpoint estimate ≈ 2026-09-24 01:11:50 UTC · precision low · basis bounded
Availability, content, DNS and registration are independent evidence layers. NXDOMAIN, an unreachable origin or missing content alone does not prove registrar action. A registrar or provider is credited only when a direct technical marker identifies that actor. Report causality is shown separately.
使用技術 · 3 identified
R
React
JavaScript frameworks
React is an open-source JavaScript library for building user interfaces or UI components.
Keep original emails, receipts, messages and screenshots in a secure place. A factual timeline helps the receiving authority understand what happened. IC3 evidence guidance ↗
Payment records — if you paid, save the receipt, amount, date, payment provider and recipient details.
Your bank or payment provider — contact its fraud team promptly through official contact details if money or card information was exposed.
地元の警察 — たとえ直ちに行動を起こせなくても、公式な記録が残される
A report is not a guarantee of recovery or investigation, but prompt, accurate transaction data can help authorities and service providers trace the incident.
詐欺による金銭の返還を装った詐欺 — fraudsters pose as recovery agents and demand upfront fees. Never share a seed phrase or pay before independently verifying the provider
About this reportSources, observation dates and corrections
This report combines saved page captures, registration and network records, scanner results and PhishDestroy reporting history. Each source keeps its own observation date. Open a source report to inspect the original result.
The AI-assisted analysis was written on . It describes the evidence available at that time; later source checks can change.
A capture documents what was shown. A scanner result records that provider’s assessment at the time of its check. Neither a valid certificate nor a zero-detection result is a guarantee of safety.
(BR)
