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D4rk4rmy is a ransomware threat actor that emerged in 2024 and remained active into 2025. It has been identified as a newly active ransomware group with a dedicated leak-site style public victim-claim presence and has publicly claimed compromises across multiple sectors. Reported victims include organizations in higher education, financial services, legal services, hospitality, and other commercial enterprises, indicating opportunistic multi-sector targeting rather than a narrowly specialized victim profile. Known aliases include d4rk4rmy and d4rk_4rmy. The group is associated with ransomware operations and public extortion behavior through victim naming on leak infrastructure. Reported victim claims include organizations such as Loyola University Chicago, Bridgewater Associates, Vinson & Elkins, the University of Puerto Rico Rio Piedras Campus, and Monte-Carlo Société des Bains de Mer. Available reporting supports classification as a financially motivated cybercriminal actor engaged in extortion-oriented ransomware activity. High-confidence public information in the supplied material does not establish a specific national affiliation, malware lineage, or distinctive tradecraft beyond its role as an emerging ransomware operator using public victim claims.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Named as a new ransomware variant/gang emerging in 2024 and associated with victim claims posted in July 2024.
A newly active ransomware group in July 2025, part of the emerging threat landscape.
D4rk4rmy is a hacking group that claimed responsibility for breaching Monte-Carlo Société des Bains de Mer.
D4rk4rmy is a hacking group that initially managed DarkForums, a forum for trading hacked data that rose in prominence after the takedown of BreachForums.
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.