The Crimson Kingsnake threat actor has been using typo-squatted domains to send out emails impersonating top law firms. The group uses the domains to create fake email addresses and carries out Business Email Compromise (BEC) attacks by sending emails to recipients across the world. The emails include a fake invoice directing payments to a threat actor-controlled bank account. The invoices include the letterhead and logos of the impersonated firms, and the domains appear to be legitimate at first glance. According to researchers at Abnormal Security, the impersonated firms include:
- Allen & Overy
- Clifford Chance
- Deloitte
- Dentons
- Eversheds Sutherland
- Herbert Smith Freehills
- Hogan Lovells
- Kirkland & Ellis
- Lindsay Hart
- Manix Law Firm
- Monlex International
- Morrison Foerster
- Simmons & Simmons
- Sullivan & Cromwell
There are no specific industries or countries that these attacks are targeting. If the recipient is reluctant for any reason, the group will go a step further and either provide a fake description for a service or insert a reply from an executive that is approving the transaction.