TIARAS - cryptnet

Threat Actor Profile

Low Cybercriminal

Description

According to OALabs, this ransomware has the following features: * Files are encrypted with AES CBC using a generated 256 bit key and IV.* The generated AES keys are encrypted using a hard coded RSA key and appended to the encrypted files.

Confidence Score

100%

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 OALabs, this ransomware has the following '
                'features: * Files are encrypted with AES CBC using a '
                'generated 256 bit key and IV.* The generated AES keys are '
                'encrypted using a hard coded RSA key and appended to the '
                'encrypted files.',
 'firstseen': '2023-04-19T20:00:01.214643+00:00',
 'group': 'cryptnet',
 'has_negotiations': False,
 'has_ransomnote': True,
 'lastseen': '2023-04-19T20:00:01.214643+00:00',
 'locations': [{'available': False,
                'fqdn': 'blog6zw62uijolee7e6aqqnqaszs3ckr5iphzdzsazgrpvtqtjwqryid.onion',
                'slug': 'http://blog6zw62uijolee7e6aqqnqaszs3ckr5iphzdzsazgrpvtqtjwqryid.onion/',
                'title': 'CryptNet NEWS',
                'type': 'DLS'},
               {'available': False,
                'fqdn': 'cryptr3fmuv4di5uiczofjuypopr63x2gltlsvhur2ump4ebru2xd3yd.onion',
                'slug': 'http://cryptr3fmuv4di5uiczofjuypopr63x2gltlsvhur2ump4ebru2xd3yd.onion/login',
                'title': 'CryptNet RECOVERY',
                'type': 'DLS'}],
 'negotiation_count': 0,
 'ransomnotes_count': 1,
 'tiaras_metadata': {'has_negotiations': False,
                     'has_ransomnote': True,
                     'locations': [{'available': False,
                                    'fqdn': 'blog6zw62uijolee7e6aqqnqaszs3ckr5iphzdzsazgrpvtqtjwqryid.onion',
                                    'slug': 'http://blog6zw62uijolee7e6aqqnqaszs3ckr5iphzdzsazgrpvtqtjwqryid.onion/',
                                    'title': 'CryptNet NEWS',
                                    'type': 'DLS'},
                                   {'available': False,
                                    'fqdn': 'cryptr3fmuv4di5uiczofjuypopr63x2gltlsvhur2ump4ebru2xd3yd.onion',
                                    'slug': 'http://cryptr3fmuv4di5uiczofjuypopr63x2gltlsvhur2ump4ebru2xd3yd.onion/login',
                                    'title': 'CryptNet RECOVERY',
                                    'type': 'DLS'}],
                     'negotiation_count': 0,
                     'ransomnotes_count': 1,
                     'ransomware_live_group': 'cryptnet',
                     'tools': {},
                     'url': 'https://www.ransomware.live/group/cryptnet',
                     'victims': 2,
                     'vulnerabilities': []},
 'tiaras_source': 'ransomware.live',
 'tools': {},
 'ttps': [],
 'url': 'https://www.ransomware.live/group/cryptnet',
 'victims': 2,
 'vulnerabilities': []}