hacker-news · Crawled Sep 13, 2026
Attackers Use Passkey Phishing to Hijack Microsoft Cloud Accounts and Exfiltrate Data
10 IoCs 2 Actors
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AI Summary
Microsoft identified two distinct attack campaigns targeting enterprise cloud environments. The first involved a large-scale phishing campaign using CEO impersonation and AI-generated content to trick finance teams into executing fraudulent ACH transfers. The second, more technically sophisticated campaign used social engineering around passkey and MFA updates to compromise Microsoft cloud identities, enabling persistent access through adversary-in-the-middle attacks and abuse of Microsoft Graph API for reconnaissance and data exfiltration. The activity is attributed to multiple threat actor groups, including Storm-3121 and Storm-3032 (UNC6671), with infrastructure linked to known cybercrime collectives.
AI-extracted · verify before operational use
Extracted Entities 2 found
Indicators of Compromise 10 extracted
| Type | Value | Detail |
|---|---|---|
| Domain | service-nowinc[.]com | Details → |
| Domain | domainlify[.]net | Details → |
| Domain | passkeyhelpdesk[.]com | Details → |
| Domain | secure-passkey[.]com | Details → |
| Domain | setupmypasskey[.]com | Details → |
| Domain | add-passkey[.]com | Details → |
| Domain | integratedsso[.]com | Details → |
| Domain | oktasession[.]com | Details → |
| Domain | syncmykey[.]com | Details → |
| Domain | portalsetuphub[.]com | Details → |
MITRE ATT&CK TTPs 88 techniques
T1003 OS Credential Dumping · Credential Access T1020 Automated Exfiltration · Exfiltration T1027 Obfuscated Files or Information · Defense Evasion T1059 Command and Scripting Interpreter · Execution T1059.001 PowerShell · Execution T1059.003 Windows Command Shell · Execution T1071.001 Web Protocols · Command And Control T1071.004 DNS · Command And Control T1078 Valid Accounts · Defense Evasion T1078.004 Cloud Accounts · Defense Evasion T1087 Account Discovery · Discovery T1087.003 Email Account · Discovery T1090 Proxy · Command And Control T1090.002 External Proxy · Command And Control T1095 Non-Application Layer Protocol · Command And Control T1105 Ingress Tool Transfer · Command And Control T1110 Brute Force · Credential Access T1110.001 Password Guessing · Credential Access T1114 Email Collection · Collection T1133 External Remote Services · Persistence T1190 Exploit Public-Facing Application · Initial Access T1213 Data from Information Repositories · Collection T1480 Execution Guardrails · Defense Evasion T1482 Domain Trust Discovery · Discovery T1486 Data Encrypted for Impact · Impact T1495 Firmware Corruption · Impact T1496 Resource Hijacking · Impact T1529 System Shutdown/Reboot · Impact T1530 Data from Cloud Storage · Collection T1531 Account Access Removal · Impact T1538 Cloud Service Dashboard · Discovery T1538.001 T1538.001 T1555 Credentials from Password Stores · Credential Access T1566 Phishing · Initial Access T1566.002 Spearphishing Link · Initial Access T1567 Exfiltration Over Web Service · Exfiltration T1567.001 Exfiltration to Code Repository · Exfiltration T1567.002 Exfiltration to Cloud Storage · Exfiltration T1568 Dynamic Resolution · Command And Control T1568.002 Domain Generation Algorithms · Command And Control T1611 Escape to Host · Privilege Escalation T1003.002 Security Account Manager · Credential Access T1021 Remote Services · Lateral Movement T1021.001 Remote Desktop Protocol · Lateral Movement T1021.002 SMB/Windows Admin Shares · Lateral Movement T1021.003 Distributed Component Object Model · Lateral Movement T1021.004 SSH · Lateral Movement T1040 Network Sniffing · Credential Access T1046 Network Service Discovery · Discovery T1055 Process Injection · Defense Evasion T1056.001 Keylogging · Collection T1056.002 GUI Input Capture · Collection T1078.002 Domain Accounts · Defense Evasion T1082 System Information Discovery · Discovery T1083 File and Directory Discovery · Discovery T1085 T1085 T1098 Account Manipulation · Persistence T1102 Web Service · Command And Control T1113 Screen Capture · Collection T1120 Peripheral Device Discovery · Discovery T1132 Data Encoding · Command And Control T1135 Network Share Discovery · Discovery T1192 T1192 T1195 Supply Chain Compromise · Initial Access T1195.002 Compromise Software Supply Chain · Initial Access T1202 Indirect Command Execution · Defense Evasion T1204.002 Malicious File · Execution T1210 Exploitation of Remote Services · Lateral Movement T1212 Exploitation for Credential Access · Credential Access T1400 T1400 T1484.001 Group Policy Modification · Defense Evasion T1485 Data Destruction · Impact T1490 Inhibit System Recovery · Impact T1491 Defacement · Impact T1499 Endpoint Denial of Service · Impact T1542 Pre-OS Boot · Defense Evasion T1543.003 Windows Service · Persistence T1557 Adversary-in-the-Middle · Credential Access T1558 Steal or Forge Kerberos Tickets · Credential Access T1558.003 Kerberoasting · Credential Access T1566.001 Spearphishing Attachment · Initial Access T1570 Lateral Tool Transfer · Lateral Movement T1573 Encrypted Channel · Command And Control T1588 Obtain Capabilities · Resource Development T1588.001 Malware · Resource Development T1595 Active Scanning · Reconnaissance T1595.002 Vulnerability Scanning · Reconnaissance T1659 Content Injection · Initial Access