Threat actor
LinkC Pub
Last fetched
LinkC Pub is a threat actor tracked in WhisperGraph's MITRE ATT&CK corpus, observed using 0 techniques and also known as 1 other name.
Also known as
LinkC
Description
Linkc is a newly emerged ransomware group that operates an onion-based data leak site and has claimed one victim, a U.S.-based AI and cloud service provider, H2O.ai, which was attacked on January 29, 2025. The group demanded a ransom of $15 million for data decryption and removal, showcasing access to sensitive information, including GPT model source code and customer data. Linkc's DLS is well-constructed and quick to load, indicating potential for future victim listings. However, there is currently no public acknowledgment from the victim, and the group has not engaged in discussions on cybercrime forums.
Techniques by tactic
No ATT&CK techniques are recorded for LinkC Pub in WhisperGraph.
Attributed infrastructure
None published. WhisperGraph carries no ATTRIBUTED_TO edge to LinkC Pub today — this states the absence of a published link, not that LinkC Pub has no infrastructure.
References
- https://www.redhotcyber.com/en/post/linkc-ransomware-the-new-cybercriminal-group-targeting-artificial-intelligence-data/#google_vignette
- https://www.cyfirma.com/research/tracking-ransomware-february-2025/
- https://www.cyjax.com/resources/blog/new-extortion-ransomware-group-linkc-emerges-what-you-need-to-know/
© The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
Related pages
Pivot from LinkC Pub into its techniques, tactics and any attributed infrastructure.
Queries
Resolves the slug to this actor, merging every duplicate node sharing the same name.
MATCH (a:ACTOR)
WHERE a.name =~ $pattern OR any(x IN a.aliases WHERE x =~ $pattern)
RETURN a.id AS id, a.name AS name, a.aliases AS aliases, a.description AS description,
a.references AS references, a.campaigns AS campaigns
LIMIT 25Techniques this actor uses, grouped by the tactic each one serves.
MATCH (a:ACTOR {name: $name})-[:USES_TECHNIQUE]->(t:ATTACK_PATTERN)
OPTIONAL MATCH (t)-[:USES_TACTIC]->(tac:ATTACK_PATTERN)
RETURN t.id AS techniqueId, t.name AS techniqueName, tac.id AS tacticId, tac.name AS tacticName
LIMIT 1000Infrastructure publicly attributed to this actor.
MATCH (n)-[:ATTRIBUTED_TO]->(a:ACTOR {name: $name})
RETURN labels(n)[0] AS kind, n.name AS name
LIMIT 25Or query Whisper from your own LLM workflow via the Whisper MCP server.