D
CyberIran

Silent Librarian

State-sponsored cyber threat groupTrackedPending verification

Also known as: TA407, COBALT DICKENS

CyberIRN
Identification silhouette. Not drawn to scale between entries.
Fact cardConfidence · Source
System
TypeState-sponsored cyber threat group
Alternative designationsTA407, COBALT DICKENS
ProliferationOrigin country only
Active since2013At least 2013Med[1]
MITRE ATT&CK IDG0122High[1]
Capabilities
ATT&CK techniques used13ATT&CK v20.1High[1]
Attribution and activity
Attributed sponsorIran-based Mabna Institute, acting for the IRGCHigh[1]
TargetsSilent Librarian is a group that has targeted research and proprietary data at universities, government agencies, and private sector companies worldwide since at least 2013.Med[1]
Notes
Silent Librarian is a group that has targeted research and proprietary data at universities, government agencies, and private sector companies worldwide since at least 2013. Members of Silent Librarian are known to have been affiliated with the Iran-based Mabna Institute which has conducted cyber intrusions at the behest of the government of Iran, specifically the Islamic Revolutionary Guard Corps (IRGC). Description adapted from MITRE ATT&CK®, © The MITRE Corporation, used under the ATT&CK Terms of Use.
Summary

Silent Librarian is a group that has targeted research and proprietary data at universities, government agencies, and private sector companies worldwide since at least 2013. Members of Silent Librarian are known to have been affiliated with the Iran-based Mabna Institute which has conducted cyber intrusions at the behest of the government of Iran, specifically the Islamic Revolutionary Guard Corps (IRGC).

Draft entry. Values come from the cited public sources and are awaiting editor verification.
CompareJSON
Operators
Iran
Sources
  1. Silent Librarian, Group G0122, MITRE ATT&CK
    Published/updated 2026-07-31 · Tier 2 · checked 2026-11-08
Change log
  • 2026-11-08 Entry created from MITRE ATT&CK Enterprise v20.1 (group G0122)