Threat Actor Profile
Medium Cybercriminal
Description

BlackLock is a rebranded version of another ransomware group known as Eldorado. It has since become one of the most active extortion syndicates in 2025, heavily targeting technology, manufacturing, construction, finance, and retail sectors.

Confidence Score
100%
Tags
ransomware ransomware.live
First Seen

Unknown

Last Updated

Unknown

Active Status
Active
Created

April 29, 2026

Indicators of Compromise

Loading IOCs…

IOC KQL for Sentinel
STIX Data
{'added_date': '2025-05-16',
 'client': '2003264@sit.singaporetech.edu.sg',
 'description': 'BlackLock is a rebranded version of another ransomware group '
                'known as Eldorado. It has since become one of the most active '
                'extortion syndicates in 2025, heavily targeting technology, '
                'manufacturing, construction, finance, and retail sectors. ',
 'firstseen': '2023-11-27T00:00:00+00:00',
 'group': 'blacklock',
 'has_negotiations': False,
 'has_ransomnote': True,
 'lastseen': '2025-07-02T16:19:01+00:00',
 'locations': [{'available': False,
                'fqdn': 'zdkexsh2e7yihw5uhg5hpsgq3dois2m5je7lzfagij2y6iw5ptl35gyd.onion',
                'slug': 'http://zdkexsh2e7yihw5uhg5hpsgq3dois2m5je7lzfagij2y6iw5ptl35gyd.onion',
                'title': 'BlackLock',
                'type': 'DLS'}],
 'negotiation_count': 0,
 'ransomnotes_count': 3,
 'tiaras_metadata': {'has_negotiations': False,
                     'has_ransomnote': True,
                     'locations': [{'available': False,
                                    'fqdn': 'zdkexsh2e7yihw5uhg5hpsgq3dois2m5je7lzfagij2y6iw5ptl35gyd.onion',
                                    'slug': 'http://zdkexsh2e7yihw5uhg5hpsgq3dois2m5je7lzfagij2y6iw5ptl35gyd.onion',
                                    'title': 'BlackLock',
                                    'type': 'DLS'}],
                     'negotiation_count': 0,
                     'ransomnotes_count': 3,
                     'ransomware_live_group': 'blacklock',
                     'tools': {},
                     'url': 'https://www.ransomware.live/group/blacklock',
                     'victims': 64,
                     'vulnerabilities': []},
 'tiaras_source': 'ransomware.live',
 'tools': {},
 'ttps': [],
 'url': 'https://www.ransomware.live/group/blacklock',
 'victims': 64,
 'vulnerabilities': []}
Quick Actions