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Five Families is a hacktivist collective that has also been described as operating in ransomware-as-a-service activity. The group is associated with the member groups GhostSec, Stormous, ThreatSec, SiegedSec, and Blackforums. Reporting links the collective to hacktivist operations and to a broader ecosystem of disruptive and extortion-oriented actors, with some overlap noted alongside DDoS-focused operators such as HydraC2. In 2025, Five Families was identified as among the hacktivist groups that shifted toward ransomware-oriented operations, targeting entities in Latin America and the Caribbean, including organizations in Cuba and Brazil. Based on the available facts, the group combines politically themed or hacktivist branding with financially motivated ransomware activity.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
2 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
1 malware family attributed to this actor across reporting.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Hacktivist collective transitioning toward ransomware-as-a-service for financial gain; targeted entities in Cuba and Brazil.
Named coalition of hacktivist and ransomware-linked groups associated in the content with HydraC2.
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Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.