Threat Actor Profile
Medium Cybercriminal
Description

According to PCrisk, Trigona is ransomware that encrypts files and appends the ._locked extension to filenames. Also, it drops the how_to_decrypt.hta file that opens a ransom note. An example of how Trigona renames files: it renames 1.jpg to 1.jpg._locked, 2.png to 2.png._locked, and so forth.It embeds the encrypted decryption key, the campaign ID, and the victim ID in the encrypted files.

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': None,
 'client': '2003264@sit.singaporetech.edu.sg',
 'description': 'According to PCrisk, Trigona is ransomware that encrypts '
                'files and appends the ._locked extension to filenames. Also, '
                'it drops the how_to_decrypt.hta file that opens a ransom '
                'note. An example of how Trigona renames files: it renames '
                '1.jpg to 1.jpg._locked, 2.png to 2.png._locked, and so '
                'forth.It embeds the encrypted decryption key, the campaign '
                'ID, and the victim ID in the encrypted files.',
 'firstseen': '2023-04-11T16:48:00+00:00',
 'group': 'trigona',
 'has_negotiations': False,
 'has_ransomnote': True,
 'lastseen': '2024-03-30T12:00:00+00:00',
 'locations': [{'available': False,
                'fqdn': '6n5tfadusp4sarzuxntz34q4ohspiaya2mc6aw6uhlusfqfsdomavyyd.onion',
                'slug': 'http://6n5tfadusp4sarzuxntz34q4ohspiaya2mc6aw6uhlusfqfsdomavyyd.onion',
                'title': 'Blog',
                'type': 'DLS'},
               {'available': False,
                'fqdn': 'krsbhaxbki6jr4zvwblvkaqzjkircj7cxf46qt3na5o5sj2hpikbupqd.onion',
                'slug': 'http://krsbhaxbki6jr4zvwblvkaqzjkircj7cxf46qt3na5o5sj2hpikbupqd.onion',
                'title': 'Blog',
                'type': 'DLS'},
               {'available': False,
                'fqdn': 'trigonax2zb3fw34rbaap4cqep76zofxs53zakrdgcxzq6xzt24l5lqd.onion',
                'slug': 'http://trigonax2zb3fw34rbaap4cqep76zofxs53zakrdgcxzq6xzt24l5lqd.onion',
                'title': 'Trigona is Gone',
                'type': 'DLS'},
               {'available': False,
                'fqdn': '3x55o3u2b7cjs54eifja5m3ottxntlubhjzt6k6htp5nrocjmsxxh7ad.onion',
                'slug': 'http://3x55o3u2b7cjs54eifja5m3ottxntlubhjzt6k6htp5nrocjmsxxh7ad.onion/',
                'title': 'Trigona is Gone',
                'type': 'Chat'}],
 'negotiation_count': 0,
 'ransomnotes_count': 1,
 'tiaras_metadata': {'has_negotiations': False,
                     'has_ransomnote': True,
                     'locations': [{'available': False,
                                    'fqdn': '6n5tfadusp4sarzuxntz34q4ohspiaya2mc6aw6uhlusfqfsdomavyyd.onion',
                                    'slug': 'http://6n5tfadusp4sarzuxntz34q4ohspiaya2mc6aw6uhlusfqfsdomavyyd.onion',
                                    'title': 'Blog',
                                    'type': 'DLS'},
                                   {'available': False,
                                    'fqdn': 'krsbhaxbki6jr4zvwblvkaqzjkircj7cxf46qt3na5o5sj2hpikbupqd.onion',
                                    'slug': 'http://krsbhaxbki6jr4zvwblvkaqzjkircj7cxf46qt3na5o5sj2hpikbupqd.onion',
                                    'title': 'Blog',
                                    'type': 'DLS'},
                                   {'available': False,
                                    'fqdn': 'trigonax2zb3fw34rbaap4cqep76zofxs53zakrdgcxzq6xzt24l5lqd.onion',
                                    'slug': 'http://trigonax2zb3fw34rbaap4cqep76zofxs53zakrdgcxzq6xzt24l5lqd.onion',
                                    'title': 'Trigona is Gone',
                                    'type': 'DLS'},
                                   {'available': False,
                                    'fqdn': '3x55o3u2b7cjs54eifja5m3ottxntlubhjzt6k6htp5nrocjmsxxh7ad.onion',
                                    'slug': 'http://3x55o3u2b7cjs54eifja5m3ottxntlubhjzt6k6htp5nrocjmsxxh7ad.onion/',
                                    'title': 'Trigona is Gone',
                                    'type': 'Chat'}],
                     'negotiation_count': 0,
                     'ransomnotes_count': 1,
                     'ransomware_live_group': 'trigona',
                     'tools': {'CredentialTheft': ['Mimikatz'],
                               'DefenseEvasion': [],
                               'DiscoveryEnum': ['Advanced Port Scanner',
                                                 'SoftPerfect NetScan'],
                               'Exfiltration': ['MEGA', 'RClone'],
                               'LOLBAS': [],
                               'Networking': [],
                               'Offsec': ['Cobalt Strike'],
                               'RMM-Tools': ['AnyDesk',
                                             'LogMeIn',
                                             'ScreenConnect',
                                             'Splashtop',
                                             'TeamViewer']},
                     'url': 'https://www.ransomware.live/group/trigona',
                     'victims': 49,
                     'vulnerabilities': []},
 'tiaras_source': 'ransomware.live',
 'tools': {'CredentialTheft': ['Mimikatz'],
           'DefenseEvasion': [],
           'DiscoveryEnum': ['Advanced Port Scanner', 'SoftPerfect NetScan'],
           'Exfiltration': ['MEGA', 'RClone'],
           'LOLBAS': [],
           'Networking': [],
           'Offsec': ['Cobalt Strike'],
           'RMM-Tools': ['AnyDesk',
                         'LogMeIn',
                         'ScreenConnect',
                         'Splashtop',
                         'TeamViewer']},
 'ttps': [],
 'url': 'https://www.ransomware.live/group/trigona',
 'victims': 49,
 'vulnerabilities': []}
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