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Doommageddon is an emerging ransomware and data-theft extortion group first observed in 2026. It has claimed or been attributed with ransomware incidents against organizations in Brazil, the United States, Turkey, and Paraguay, including healthcare providers, financial services firms, real-estate businesses, logistics companies, and business-service organizations. Its operations use leak-site-style victim listings, publication deadlines, and data-release threats to pressure victims. In one reported healthcare incident in Brazil, the actor claimed it would release stolen patient data in successive waves, beginning with medical records and expanding to personal and clinical information and full databases. Publicly reported victim records also indicate both upcoming publication threats and at least one leaked-data case. The available reporting does not establish the group’s geographic origin, technical intrusion methods, malware implementation, or whether encryption was deployed in individual incidents.
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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.
4 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Claimed ransomware attack against INCOR Group, with an upcoming status and a stated deadline of September 20, 2026.
Claimed ransomware attack against Akpera Gayrimenkul Yatırım A.Ş. in Turkey; the incident was listed as upcoming, with a deadline of September 15, 2026.
Conducting a ransomware and apparent data-extortion attack against SITTNAK Lojistik A.Ş. in Turkey.
A newly emerged data theft/ransomware group.
Match sector + geo + tech-stack targeting against your real footprint.
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.