Home/ Threat Actors/ APT34

🇮🇷APT34

🇮🇷 APT34 is a tracked threat actor in the Clankerusecase corpus. Attributed to IR. Primary motivation: State. We map 26 detection use cases to this actor across 106 MITRE ATT&CK techniques, with 4 threat-intel articles citing them. Active in our corpus from 2026-02-26 to 2026-07-21.

crit 2high 2

View full actor card → All threat actors MITRE ATT&CK group spec (G0049) ↗

26Use cases

4Articles

106Techniques

20IOCs

Known aliases

APT34OilRigHelix KittenCobalt GypsyHazel SandstormCOBALT GYPSYIRN2Evasive SerpensEUROPIUMITG13Earth SimnavazCrambusTA452

Top techniques

T1190 · Exploit Public-Facing Application T1204.002 · Malicious File T1566 · Phishing

All other tracked techniques

T1003 · OS Credential Dumping T1003.001 · LSASS Memory T1003.004 · LSA Secrets T1003.005 · Cached Domain Credentials T1005 · Data from Local System T1007 · System Service Discovery T1008 · Fallback Channels T1012 · Query Registry T1016 · System Network Configuration Discovery T1021.001 · Remote Desktop Protocol T1021.002 · SMB/Windows Admin Shares T1021.004 · SSH T1025 · Data from Removable Media T1027 · Obfuscated Files or Information T1027.005 · Indicator Removal from Tools T1027.007 · Dynamic API Resolution T1027.013 · Encrypted/Encoded File T1033 · System Owner/User Discovery T1036 · Masquerading T1036.005 · Match Legitimate Resource Name or Location T1046 · Network Service Discovery T1047 · Windows Management Instrumentation T1048.003 · Exfiltration Over Unencrypted Non-C2 Protocol T1049 · System Network Connections Discovery T1053.005 · Scheduled Task T1056.001 · Keylogging T1057 · Process Discovery T1059 · Command and Scripting Interpreter T1059.001 · PowerShell T1059.003 · Windows Command Shell T1059.005 · Visual Basic T1068 · Exploitation for Privilege Escalation T1069.001 · Local Groups T1069.002 · Domain Groups T1070.004 · File Deletion T1071 · Application Layer Protocol T1071.001 · Web Protocols T1071.004 · DNS T1072 · Software Deployment Tools T1074.001 · Local Data Staging T1078 · Valid Accounts T1078.002 · Domain Accounts T1082 · System Information Discovery T1087 · Account Discovery T1087.001 · Local Account T1087.002 · Domain Account T1098.001 · Additional Cloud Credentials T1098.005 · Device Registration T1102.002 · Bidirectional Communication T1105 · Ingress Tool Transfer T1110 · Brute Force T1110.003 · Password Spraying T1112 · Modify Registry T1113 · Screen Capture T1115 · Clipboard Data T1119 · Automated Collection T1120 · Peripheral Device Discovery T1127.001 · MSBuild T1132.001 · Standard Encoding T1133 · External Remote Services T1137.004 · Outlook Home Page T1140 · Deobfuscate/Decode Files or Information T1195 · Supply Chain Compromise T1195.002 · Compromise Software Supply Chain T1199 · Trusted Relationship T1201 · Password Policy Discovery T1203 · Exploitation for Client Execution T1204.001 · Malicious Link T1204.004 · Malicious Copy and Paste T1218 · System Binary Proxy Execution T1218.001 · Compiled HTML File T1219 · Remote Access Tools T1486 · Data Encrypted for Impact T1497.001 · System Checks T1505.003 · Web Shell T1528 · Steal Application Access Token T1543.003 · Windows Service T1547.001 · Registry Run Keys / Startup Folder T1550.001 · Application Access Token T1552.001 · Credentials In Files T1553.002 · Code Signing T1555 · Credentials from Password Stores T1555.003 · Credentials from Web Browsers T1555.004 · Windows Credential Manager T1556.002 · Password Filter DLL T1556.006 · Multi-Factor Authentication T1566.001 · Spearphishing Attachment T1566.002 · Spearphishing Link T1566.003 · Spearphishing via Service T1569.002 · Service Execution T1572 · Protocol Tunneling T1573.002 · Asymmetric Cryptography T1574.001 · DLL T1574.002 · T1574.002 T1574.014 · AppDomainManager T1583.001 · Domains T1586.002 · Email Accounts T1587.001 · Malware T1588.002 · Tool T1588.003 · Code Signing Certificates T1608.001 · Upload Malware T1621 · Multi-Factor Authentication Request Generation T1686.003 · Windows Host Firewall

Detection use cases (26)

APT34/OilRig DNS-tunnel C2 (Helminth / BONDUPDATER / QUADAGENT) — long high-fan-out subdomains from non-browser process AI · profile S APT34 weaponized-macro delivery chain — Office → PowerShell → scheduled-task persistence (Helminth/SideTwist dropper) AI · profile SΣDD Cavern Manticore WinDirStat DLL side-load of fake uxtheme.dll (Cavern backdoor) Bespoke Masqueraded uxtheme.dll dropped outside Windows dirs via SysAid/RMM deployment (Cavern Manticore) Bespoke AppDomainManager hijacking config artifact dropped in user-writable path (Screening Serpens/UNC1549) Bespoke Phishing-link click correlated to endpoint execution Internal Email attachment opened from external sender Internal Office app spawning script/LOLBin child process Internal RMM tool installed by non-IT user — remote-access utility for hands-on-keyboard Internal Trusted vendor binary / installer launching unusual children Internal CAV3RN/HOLLOWGRAPH DNS AAAA config-recovery beaconing to cloudlanecdn[.]com Bespoke CAV3RN AzureCommunication.dll config file 'logAzure.txt' written to disk Bespoke CAV3RN framework module DLLs loaded/dropped (AzureCommunication / n-HTCommp / masqueraded uxtheme) Bespoke Anomalous DLL-host process reaching Microsoft Graph/login.microsoftonline for calendar C2 Bespoke 1Password failed sign-in burst MITRE match 1Password impossible-travel sign-in MITRE match 1Password item exfiltration attempt MITRE match 1Password vault export attempted 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-category credential-store enumeration with rapid egress to anonymizing tunnel/CDN 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

Threat-intel articles (4)

high Iran War Cyber Threat Landscape | A Midyear Assessment on What Matters · 2026-07-21

high New Project CAV3RN module abuses Outlook calendar events for C2 and DNS AAAA records for configuration recovery · 2026-07-21

crit Cyber fallout from the Iran war: What to have on your radar · 2026-03-12

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

Tracked indicators

Domains (18)

accesslinkssl.com clipeditskill.com cloudlanecdn.com co.il d.53466d4c67515a.0.p.clo decoorat.net decoraat.net dns1.registrar-servers.c dns2.registrar-servers.c gesecole.net google.com.ayalon-print. login.microsoftonline.co ns1.cloudlanecdn.com ns2.cloudlanecdn.com ns3.cloudlanecdn.com ns4.cloudlanecdn.com onedow.gesecole.net onedown.gesecole.net

IP addresses (2)

144.172.108.205 216.126.237.197