BlackJack

Blackjack, a threat actor linked to Ukraine's security apparatus, has targeted critical Russian entities such as ISPs, utilities, and military infrastructure. They have claimed responsibility for launching cyberattacks resulting in substantial damage and data exfiltration. The group allegedly used the Fuxnet malware to target sensor gateways connected to internet-connected sensors, impacting… Source: MISP

Attributed country: UA according to MISP

Relationships come from co-occurrence in the news, not attribution. Sources: MISP galaxy and SigmaHQ.