Cicada 3301 Strikes Dias de Primavera: A Comprehensive Look
Summary
On July 18, 2025, the ransomware group Cicada 3301 publicly claimed responsibility for an attack targeting
Dias de Primavera (diasdeprimavera.com.br), a Brazilian company. According to the threat actor’s post, they intend to release sensitive data unless negotiations are initiated.
Incident Report
| Field | Details |
|---|---|
| Target | Dias de Primavera |
| Domain | diasdeprimavera.com.br |
| Country | Brazil |
| Attacking Group | Cicada 3301 |
| Date Reported | July 18, 2025 |
| Threat Actor Statement | “The full leak will be published soon, unless a company representative contacts us via the channels provided.” |
About Dias de Primavera
Dias de Primavera is a renowned Brazilian company known for its innovative solutions and customer-centric approach. The recent attack has put their reputation at risk and highlighted the vulnerabilities present in even well-established organizations.
About Cicada 3301
Cicada 3301 is an enigmatic group known for its sophisticated cyber attacks and cryptic challenges. Their involvement in this attack raises concerns about the increasing complexity and precision of ransomware campaigns targeting various sectors globally.
How to Proactively Respond to Threats
In light of such incidents, organizations must adopt a proactive approach to cybersecurity. One effective strategy is darkweb monitoring, which allows companies to identify potential threats and data leaks before they escalate. Utilizing tools like the email breach checker at MSP Dark Intel can help organizations keep a vigilant eye on their digital assets and prevent unauthorized access.
Recommendations
- Monitor your domains and email addresses for exposure using reputable threat intelligence tools.
- Conduct a full compromise assessment and incident response drill internally.
- Verify backups and ensure they are offline and ransomware-resistant.
- Educate staff on phishing, social engineering, and lateral movement techniques used by groups like Qilin.
- Engage with cyber forensics and legal counsel before initiating contact with threat actors.
Check Your Exposure
Wondering if your organization or employees are impacted by recent breach activity?
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Check domain-wide breach exposure:
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Check if an email was breached:
mspdarkintel.com/email-breach-scan
Disclaimer
The MSPDarkIntel team does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information.
All breach data reported here is sourced from publicly available threat intelligence feeds for awareness and early-warning purposes only.
Our goal is to inform organizations of emerging threats so they can take timely defensive action.
