Threat Actor Profile
High APT
Description

Star Blizzard is a cyber espionage and influence group originating in Russia that has been active since at least 2019. Star Blizzard campaigns align closely with Russian state interests and have included persistent phishing and credential theft against academic, defense, government, NGO, and think tank organizations in NATO countries, particularly the US and the UK.(Citation: Microsoft Star Blizzard August 2022)(Citation: CISA Star Blizzard Advisory December 2023)(Citation: StarBlizzard)(Citation: Google TAG COLDRIVER January 2024)

Confidence Score
90%
Known Aliases
Star Blizzard SEABORGIUM Callisto Group TA446 COLDRIVER
Tags
mitre-attack stix-2.1 intrusion-set
First Seen

Unknown

Last Updated

Unknown

Active Status
Active
Created

April 29, 2026

MITRE ATT&CK Techniques (19)
T1114.002 - Remote Email Collection
Collection
T1114.003 - Email Forwarding Rule
Collection
T1539 - Steal Web Session Cookie
Credential Access
T1078 - Valid Accounts
Defense Evasion
T1550.004 - Web Session Cookie
Defense Evasion
T1059.007 - JavaScript
Execution
T1204.002 - Malicious File
Execution
T1566.001 - Spearphishing Attachment
Initial Access
T1589 - Gather Victim Identity Information
Reconnaissance
T1593 - Search Open Websites/Domains
Reconnaissance
T1598.002 - Spearphishing Attachment
Reconnaissance
T1598.003 - Spearphishing Link
Reconnaissance
T1583 - Acquire Infrastructure
Resource Development
T1583.001 - Domains
Resource Development
T1585.001 - Social Media Accounts
Resource Development
T1585.002 - Email Accounts
Resource Development
T1586.002 - Email Accounts
Resource Development
T1588.002 - Tool
Resource Development
T1608.001 - Upload Malware
Resource Development
Indicators of Compromise

Loading IOCs…

IOC KQL for Sentinel
STIX Data
{'aliases': ['Star Blizzard',
             'SEABORGIUM',
             'Callisto Group',
             'TA446',
             'COLDRIVER'],
 'created': '2024-06-14T18:17:18.727Z',
 'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'description': '[Star Blizzard](https://attack.mitre.org/groups/G1033) is a '
                'cyber espionage and influence group originating in Russia '
                'that has been active since at least 2019. [Star '
                'Blizzard](https://attack.mitre.org/groups/G1033) campaigns '
                'align closely with Russian state interests and have included '
                'persistent phishing and credential theft against academic, '
                'defense, government, NGO, and think tank organizations in '
                'NATO countries, particularly the US and the UK.(Citation: '
                'Microsoft Star Blizzard August 2022)(Citation: CISA Star '
                'Blizzard Advisory December 2023)(Citation: '
                'StarBlizzard)(Citation: Google TAG COLDRIVER January 2024)\n',
 'external_references': [{'external_id': 'G1033',
                          'source_name': 'mitre-attack',
                          'url': 'https://attack.mitre.org/groups/G1033'},
                         {'description': '(Citation: CISA Star Blizzard '
                                         'Advisory December 2023)',
                          'source_name': 'Callisto Group'},
                         {'description': '(Citation: CISA Star Blizzard '
                                         'Advisory December 2023)',
                          'source_name': 'TA446'},
                         {'description': '(Citation: Google TAG COLDRIVER '
                                         'January 2024)',
                          'source_name': 'COLDRIVER'},
                         {'description': '(Citation: Microsoft Star Blizzard '
                                         'August 2022)',
                          'source_name': 'SEABORGIUM'},
                         {'description': 'CISA, et al. (2023, December 7). '
                                         'Russian FSB Cyber Actor Star '
                                         'Blizzard Continues Worldwide '
                                         'Spear-phishing Campaigns. Retrieved '
                                         'June 13, 2024.',
                          'source_name': 'CISA Star Blizzard Advisory December '
                                         '2023',
                          'url': 'https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-341a'},
                         {'description': 'Microsoft Threat Intelligence. '
                                         '(2022, August 15). Disrupting '
                                         'SEABORGIUM’s ongoing phishing '
                                         'operations. Retrieved June 13, 2024.',
                          'source_name': 'Microsoft Star Blizzard August 2022',
                          'url': 'https://www.microsoft.com/en-us/security/blog/2022/08/15/disrupting-seaborgiums-ongoing-phishing-operations/'},
                         {'description': 'Microsoft Threat Intelligence. '
                                         '(2023, December 7). Star Blizzard '
                                         'increases sophistication and evasion '
                                         'in ongoing attacks. Retrieved '
                                         'February 13, 2024.',
                          'source_name': 'StarBlizzard',
                          'url': 'https://www.microsoft.com/en-us/security/blog/2023/12/07/star-blizzard-increases-sophistication-and-evasion-in-ongoing-attacks/'},
                         {'description': 'Shields, W. (2024, January 18). '
                                         'Russian threat group COLDRIVER '
                                         'expands its targeting of Western '
                                         'officials to include the use of '
                                         'malware. Retrieved June 13, 2024.',
                          'source_name': 'Google TAG COLDRIVER January 2024',
                          'url': 'https://blog.google/threat-analysis-group/google-tag-coldriver-russian-phishing-malware/'}],
 'id': 'intrusion-set--9b36c218-4d80-4ec6-a68d-cc2886bbe410',
 'modified': '2025-10-22T22:12:56.172Z',
 'name': 'Star Blizzard',
 'object_marking_refs': ['marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168'],
 'revoked': False,
 'spec_version': '2.1',
 'type': 'intrusion-set',
 'x_mitre_attack_spec_version': '3.3.0',
 'x_mitre_contributors': ['Aung Kyaw Min Naing, @Nolan'],
 'x_mitre_deprecated': False,
 'x_mitre_domains': ['enterprise-attack', 'mobile-attack'],
 'x_mitre_modified_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'x_mitre_version': '2.0'}
Quick Actions
Related TTPs (19)
Remote Email Collection
Collection

Email Forwarding Rule
Collection

Steal Web Session Cookie
Credential Access

Valid Accounts
Defense Evasion

Web Session Cookie
Defense Evasion