Home/ Threat Actors/ APT29

🇷🇺APT29

🇷🇺 APT29 is a tracked threat actor in the Clankerusecase corpus. Attributed to RU. Primary motivation: State. We map 26 detection use cases to this actor across 77 MITRE ATT&CK techniques, with 2 threat-intel articles citing them. Active in our corpus from 2026-02-26 to 2026-05-06.

crit 1low 1

View full actor card → All threat actors MITRE ATT&CK group spec (G0016) ↗

26Use cases

2Articles

77Techniques

5IOCs

Known aliases

APT29Cozy BearNobeliumMidnight BlizzardThe DukesYTTRIUMSVRIRON RITUALIRON HEMLOCKNobleBaronDark HaloNOBELIUMUNC2452CozyDukeSolarStormBlue KitsuneUNC3524

Top techniques

T1027 · Obfuscated Files or Information T1190 · Exploit Public-Facing Application T1195.002 · Compromise Software Supply Chain

All other tracked techniques

T1003.002 · Security Account Manager T1003.004 · LSA Secrets T1005 · Data from Local System T1016.001 · Internet Connection Discovery T1021.007 · Cloud Services T1027.001 · Binary Padding T1027.002 · Software Packing T1027.006 · HTML Smuggling T1036.005 · Match Legitimate Resource Name or Location T1037 · Boot or Logon Initialization Scripts T1037.004 · RC Scripts T1047 · Windows Management Instrumentation T1053.005 · Scheduled Task T1059.001 · PowerShell T1059.005 · Visual Basic T1059.006 · Python T1059.009 · Cloud API T1068 · Exploitation for Privilege Escalation T1070.004 · File Deletion T1070.006 · Timestomp T1071 · Application Layer Protocol T1071.001 · Web Protocols T1078 · Valid Accounts T1078.003 · Local Accounts T1078.004 · Cloud Accounts T1087.004 · Cloud Account T1090.002 · External Proxy T1090.003 · Multi-hop Proxy T1090.004 · Domain Fronting T1098.002 · Additional Email Delegate Permissions T1098.005 · Device Registration T1105 · Ingress Tool Transfer T1110.001 · Password Guessing T1110.003 · Password Spraying T1114.002 · Remote Email Collection T1127.001 · MSBuild T1133 · External Remote Services T1136.003 · Cloud Account T1199 · Trusted Relationship T1203 · Exploitation for Client Execution T1204.001 · Malicious Link T1204.002 · Malicious File T1204.004 · Malicious Copy and Paste T1218 · System Binary Proxy Execution T1218.005 · Mshta T1505.003 · Web Shell T1528 · Steal Application Access Token T1546.003 · Windows Management Instrumentation Event Subscription T1546.008 · Accessibility Features T1547.001 · Registry Run Keys / Startup Folder T1548.002 · Bypass User Account Control T1550.003 · Pass the Ticket T1553.005 · Mark-of-the-Web Bypass T1556.007 · Hybrid Identity T1566 · Phishing T1566.001 · Spearphishing Attachment T1566.002 · Spearphishing Link T1566.003 · Spearphishing via Service T1568 · Dynamic Resolution T1573 · Encrypted Channel T1573.002 · Asymmetric Cryptography T1574.002 · T1574.002 T1583.006 · Web Services T1586.002 · Email Accounts T1586.003 · Cloud Accounts T1587.001 · Malware T1587.003 · Digital Certificates T1588.002 · Tool T1595.002 · Vulnerability Scanning T1621 · Multi-Factor Authentication Request Generation T1649 · Steal or Forge Authentication Certificates T1651 · Cloud Administration Command T1665 · Hide Infrastructure T1685.002 · Disable or Modify Cloud Log

Detection use cases (26)

APT29 / Midnight Blizzard — OAuth service-principal credential addition paired with high-privilege Graph/Exchange consent AI · profile SDD APT29 / NOBELIUM AD FS post-exploitation — FoggyWeb / MagicWeb DLL masquerade loaded by Microsoft.IdentityServer.ServiceHost.exe AI · profile SΣDD PlugX phishing lure — 'Meeting Invitation' email linking to gesecole.net ZIP Bespoke Renamed MSBuild.exe executing inline .csproj from user-writable path Bespoke PlugX DLL side-load — G DATA Avk.exe running from C:\Users\Public\GDatas\ Bespoke PlugX persistence — Run key 'G DATA' pointing to C:\Users\Public\GDatas\Avk.exe Bespoke PlugX C2 egress — connections to decoraat.net / decoorat.net / gesecole.net Bespoke Phishing-link click correlated to endpoint execution Internal Email attachment opened from external sender Internal Office app spawning script/LOLBin child process Internal Fake CAPTCHA / clipboard-injected PowerShell (ClickFix / FakeCaptcha) Internal Trusted vendor binary / installer launching unusual children Internal Network connections to article IPs / domains Internal File hash IOCs — endpoint file/process match Internal 1Password activity from Tor exit node MITRE match 1Password impossible-travel sign-in MITRE match AI-Agent Server (PraisonAI/MCP) Spawns OS Shell or Recon LOLBin — Unauthenticated RCE Exploitation MITRE match AI/LLM Agent Framework Runtime Spawning Shell, Recon, or Egress Child Process MITRE match AI/LLM Framework Web Service Spawns Shell or Network Tool (Agent-Framework Unauthenticated RCE) MITRE match Auth-Bypass on Public-Facing Service → Post-Exploit Action on Same Host (≤10 min) MITRE match Brand-Impersonation Domain Fetch Followed by User-Context Loader Within 10 Minutes MITRE match Cross-Platform ClickFix Paste-to-Pipe Loader (UI-Parent Shell with Decode-and-Execute Payload) MITRE match Developer package install spawning script-host with non-registry C2 within 5 minutes MITRE match Edge-service post-exploitation chain: internet-facing daemon → child shell or token redemption within 10 min of external request MITRE match Install-Triggered Registry Publish or Git Push (Supply-Chain Worm Self-Propagation) MITRE match Internet-Exposed AI Agent/LLM Service Spawns Shell or LOLBin After Inbound Connection MITRE match

Threat-intel articles (2)

low EasterBunny: advanced espionage artifacts attributed to APT29 · 2026-05-06

crit PlugX Meeting Invitation via MSBuild and GDATA · 2026-02-26

Tracked indicators

Domains (5)

decoorat.net decoraat.net gesecole.net onedow.gesecole.net onedown.gesecole.net