Doppelpaymer ransomware group
Doppelpaymer is one of the extortion operations we watch continuously. This page covers what is known about the group and the current state of its leak site, which we last saw change 2y ago.
Who they are
DoppelPaymer is a ransomware family first identified in mid-2019, derived from the BitPaymer codebase and operated by the Evil Corp cybercrime group. It is known for its double-extortion approach, encrypting victim files with AES-256 and securing keys with RSA-2048, while also stealing sensitive data for public release if payment is not made. DoppelPaymer primarily targets large organizations, including those in healthcare, government, and manufacturing, with high ransom demands often in the millions of U.S. dollars. Infection vectors include phishing emails carrying Dridex or other loaders, exploitation of remote access services, and credential theft. Encrypted files typically retain their original name with a new extension, and ransom notes direct victims to Tor-based portals for negotiation. The group has been linked to attacks on institutions such as the City of Torrance, the State of Delaware, and hospital systems in Germany and the United States.
Current status
Doppelpaymer's leak site is not answering. Sites go dark for infrastructure trouble, a deliberate quiet period, or a takedown, and a good number return weeks later under the same name, so the entry stays on the list either way.
The last change we recorded on it was 2y ago (9 Dec 2024 20:40 UTC).
Which organisations this group has named, and when, is part of the SINON platform rather than this page. Create an account to search it, or to be told automatically if a name you care about turns up.
Sectors targeted
This group does not state an industry on its site, so we have nothing reliable to report. Most crews are opportunistic rather than sector-specific in any case — they hit what they can reach.
Watching for your name
If Doppelpaymer posts your company, a supplier or a subsidiary, you want to hear it from us rather than from a journalist. SINON checks these sites continuously and alerts on the names you give it.
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