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DEFCOMX64 is a Brazil-linked threat actor and brand associated with the alias P4R4ZYT3. The actor has been observed targeting Brazilian public-sector entities and other Brazil-related organizations, combining underground forum activity, breach disclosures, defacement operations, and Telegram-based propaganda and coordination. Activity attributed to this actor shows a progression from database breach announcements and forum promotion toward a more overt hacktivist-style posture, including politically framed messaging and public calls for intensified action against state government targets in Roraima. The actor’s operations have included claimed database compromises, publication of stolen data samples, and website defacements. Reported intrusion methods include SQL injection in at least one claimed compromise. DEFCOMX64 branding has appeared consistently across underground forum profiles, breach announcements, defacement activity, and Telegram infrastructure, indicating a consolidated operational identity. The actor has also used recruitment-style messaging to encourage others to join DEFCOMX64. Known activity indicates a primary focus on Brazilian government-linked victims, with additional defacement victims observed in Germany. The actor has used underground communities such as DarkForums, Umbra, and Hell of Hackers for self-attribution, promotion, and dissemination of breach claims. Telegram has served as a key platform for identity building, audience engagement, and operational signaling. The actor has also been observed seeking access to XWorm, suggesting interest in remote-access tooling for post-compromise operations. Overall, DEFCOMX64 is best characterized as a politically themed, Brazil-linked intrusion and defacement actor with hacktivist-style messaging, public self-promotion, and demonstrated involvement in data theft and disclosure affecting government-related targets.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
4 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
2 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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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.
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Domains, IPs, and hashes tied to this actor, refreshed continuously.