RansomwareTargets Brazil

rhysida

E-mail alert on newly attributed CVEs, new victims in Brazil and verified incidents.

About the group

Rhysida is a ransomware-as-a-service (RAAS) group that emerged in May 2023. The group utilizes a namesake ransomware through phishing attacks and Cobalt Strike to breach the targets' networks and deploy their payloads.<br> <br> The group threatens to publicly distribute exfiltrated data if the ransom is not paid, and it's worth mentioning that Rhysida is still in the early stages of development.<br> <br> The ransomware leaves PDF notes in the affected folders, instructing victims to contact the group through its portal, and payment is made via Bitcoin.<br> <br> After encryption, the ransomware appends the extension '.ryshida' to encrypted files.<BR>Source: https://github.com/crocodyli/ThreatActors-TTPs

Exploited vulnerabilities 1

CVEs this group is known to exploit, per MITRE ATT&CK. Ordered by real-world severity.

Impact and victims

The group rhysida has 5 known ransomware victims. See the most affected sectors and countries and recent victims.

5known victims
5in Brazil
3sectors hit
Most attacked sectors
Education2
Manufacturing2
Healthcare1
Most affected countries
🇧🇷 Brasil5
Recent victims
Carrera ChevroletManufacturing · BR · 2025-05-26
TermolarManufacturing · BR · 2025-05-18
Sao Camilo Cachoeiro de ItapemirimEducation · BR · 2025-05-14
Unimed Vales do Taquari e Rio PardoHealthcare · BR · 2024-05-08
Federal University of Mato Grosso do SulEducation · BR · 2023-10-02

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