Threat Actor Profile
Low
Cybercriminal
Description
Babuk Ransomware is a sophisticated ransomware compiled for several platforms. Windows and ARM for Linux are the most used compiled versions, but ESX and a 32bit old PE executable were observed over time. as well It uses an Elliptic Curve Algorithm (Montgomery Algorithm) to build the encryption keys.
Confidence Score
Tags
ransomware
ransomware.live
First Seen
Unknown
Last Updated
Unknown
Active Status
ActiveCreated
April 29, 2026
Indicators of Compromise
Loading IOCs…
IOC KQL for Sentinel
STIX Data
{'added_date': None,
'client': '2003264@sit.singaporetech.edu.sg',
'description': 'Babuk Ransomware is a sophisticated ransomware compiled for '
'several platforms. Windows and ARM for Linux are the most '
'used compiled versions, but ESX and a 32bit old PE executable '
'were observed over time. as well It uses an Elliptic Curve '
'Algorithm (Montgomery Algorithm) to build the encryption '
'keys.\n',
'firstseen': '2020-10-25T00:00:00+00:00',
'group': 'babuk',
'has_negotiations': True,
'has_ransomnote': False,
'lastseen': '2021-07-27T17:24:57+00:00',
'locations': [{'available': False,
'fqdn': 'nq4zyac4ukl4tykmidbzgdlvaboqeqsemkp4t35bzvjeve6zm2lqcjid.onion',
'slug': 'http://nq4zyac4ukl4tykmidbzgdlvaboqeqsemkp4t35bzvjeve6zm2lqcjid.onion/',
'title': 'Babuk - Leaks site',
'type': 'DLS'}],
'negotiation_count': 2,
'ransomnotes_count': 0,
'tiaras_metadata': {'has_negotiations': True,
'has_ransomnote': False,
'locations': [{'available': False,
'fqdn': 'nq4zyac4ukl4tykmidbzgdlvaboqeqsemkp4t35bzvjeve6zm2lqcjid.onion',
'slug': 'http://nq4zyac4ukl4tykmidbzgdlvaboqeqsemkp4t35bzvjeve6zm2lqcjid.onion/',
'title': 'Babuk - Leaks site',
'type': 'DLS'}],
'negotiation_count': 2,
'ransomnotes_count': 0,
'ransomware_live_group': 'babuk',
'tools': {'CredentialTheft': [],
'DefenseEvasion': [],
'DiscoveryEnum': [],
'Exfiltration': ['File[.]io'],
'LOLBAS': [],
'Networking': [],
'Offsec': [],
'RMM-Tools': []},
'url': 'https://www.ransomware.live/group/babuk',
'victims': 8,
'vulnerabilities': []},
'tiaras_source': 'ransomware.live',
'tools': {'CredentialTheft': [],
'DefenseEvasion': [],
'DiscoveryEnum': [],
'Exfiltration': ['File[.]io'],
'LOLBAS': [],
'Networking': [],
'Offsec': [],
'RMM-Tools': []},
'ttps': [],
'url': 'https://www.ransomware.live/group/babuk',
'victims': 8,
'vulnerabilities': []}