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Wallstreet is a ransomware threat group associated with attacks against organizations in the United States, Sweden, the United Kingdom, Denmark, and Saudi Arabia. Its documented activity includes victim claims dating to at least September 2026. Targets span healthcare, manufacturing, architecture and professional services, electronics, packaging, real estate, construction, and nonprofit organizations. Wallstreet's victim set includes hospitals, outpatient clinics, elder-care providers, industrial manufacturers, and several Swedish architecture firms. Named targets include Green Clinic, Gibson Area Hospital & Health Services, St. Francis Healthcare Systems of Hawaii, Girl Scouts of Eastern Massachusetts, Tronex, and Beatus Cartons. Its geographic origin, organizational structure, initial-access methods, and ransomware family are not established. Available technical detail does not establish whether its operations consistently involve encryption, data theft, or combined extortion.
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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.
1 distinct technique observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Reportedly conducted a ransomware attack against Girl Scouts of Eastern Massachusetts, a US nonprofit in the education sector. The breach was reported as occurring on October 16, 2026, at 13:59 UTC and discovered at 16:00 UTC that day. The content provides no technical details or supporting attribution evidence.
Wallstreet lists Girl Scouts of Eastern Massachusetts, Inc., a US nonprofit, as a victim and claims possession of documents, emails, credentials, personal data, and media. The listing was discovered on October 16, 2026, and displays a countdown of approximately 23 hours 40 minutes, without specifying a ransom amount or stolen-data volume.
Wallstreet lists Girl Scouts of Eastern Massachusetts, Inc., a US nonprofit, as a victim, with a discovery date of October 16, 2026. The post references documents and displays a countdown of 19h 18m 08s, but provides no data volume, ransom amount, or explicit explanation of the countdown.
Wallstreet lists Girl Scouts of Eastern Massachusetts, Inc. as a victim, displaying a “Documents+4 more” label and a countdown of 16 hours, 16 minutes, and 59 seconds. The post specifies no stolen-data volume, ransom amount, or attack method.
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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.