Threat actor
UNC1549
Last fetched
UNC1549 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
Nimbus Manticore
Description
UNC1549 is an Iranian threat actor linked to Tortoiseshell and potentially the IRGC. They have been active since at least June 2022, targeting entities worldwide with a focus on the Middle East. UNC1549 uses spear-phishing and credential harvesting for initial access, deploying custom malware like MINIBIKE and MINIBUS backdoors. They have also been observed using evasion techniques and a tunneler named LIGHTRAIL in their operations.
Techniques by tactic
No ATT&CK techniques are recorded for UNC1549 in WhisperGraph.
Attributed infrastructure
None published. WhisperGraph carries no ATTRIBUTED_TO edge to UNC1549 today — this states the absence of a published link, not that UNC1549 has no infrastructure.
References
- https://www.mandiant.com/resources/blog/suspected-iranian-unc1549-targets-israel-middle-east
- https://research.checkpoint.com/2025/nimbus-manticore-deploys-new-malware-targeting-europe
- https://blog.checkpoint.com/research/iranian-threat-actor-nimbus-manticore-expands-campaigns-into-europe-with-advanced-malware-and-fake-job-lures/
© The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
Related pages
Pivot from UNC1549 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.