Threat Actor Profile
High Cybercriminal
Description

World Leaks emerged in January 2025 as a rebrand of the Hunters International ransomware operation, shifting its focus from file encryption to solely stealing sensitive data and threatening to leak it unless a ransom is paid

Confidence Score
100%
Tags
ransomware ransomware.live
First Seen

Unknown

Last Updated

Unknown

Active Status
Active
Created

April 29, 2026

Indicators of Compromise

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IOC KQL for Sentinel
STIX Data
{'added_date': '2025-05-16',
 'client': '2003264@sit.singaporetech.edu.sg',
 'description': 'World Leaks emerged in January 2025 as a rebrand of the '
                'Hunters International ransomware operation, shifting its '
                'focus from file encryption to solely stealing sensitive data '
                'and threatening to leak it unless a ransom is paid',
 'firstseen': '2022-06-23T18:57:09+00:00',
 'group': 'worldleaks',
 'has_negotiations': False,
 'has_ransomnote': True,
 'lastseen': '2026-04-28T09:26:17+00:00',
 'locations': [{'available': True,
                'fqdn': 'worldleaksartrjm3c6vasllvgacbi5u3mgzkluehrzhk2jz4taufuid.onion',
                'slug': 'https://worldleaksartrjm3c6vasllvgacbi5u3mgzkluehrzhk2jz4taufuid.onion/api/companies',
                'title': '(no title)',
                'type': 'DLS'}],
 'negotiation_count': 0,
 'ransomnotes_count': 1,
 'tiaras_metadata': {'has_negotiations': False,
                     'has_ransomnote': True,
                     'locations': [{'available': True,
                                    'fqdn': 'worldleaksartrjm3c6vasllvgacbi5u3mgzkluehrzhk2jz4taufuid.onion',
                                    'slug': 'https://worldleaksartrjm3c6vasllvgacbi5u3mgzkluehrzhk2jz4taufuid.onion/api/companies',
                                    'title': '(no title)',
                                    'type': 'DLS'}],
                     'negotiation_count': 0,
                     'ransomnotes_count': 1,
                     'ransomware_live_group': 'worldleaks',
                     'tools': {},
                     'url': 'https://www.ransomware.live/group/worldleaks',
                     'victims': 151,
                     'vulnerabilities': []},
 'tiaras_source': 'ransomware.live',
 'tools': {},
 'ttps': [],
 'url': 'https://www.ransomware.live/group/worldleaks',
 'victims': 151,
 'vulnerabilities': []}
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