Ransomware Research

About Babuk


Babuk was first discovered in December 2020 in enterprise cloud environments.

Name Babuk
First Seen December 2020


To better understand Babuk, we can trace it’s origins. Below is a snapshot of Babuk’s genealogy.


Behavior of Babuk

Babuk is known to target specific file types. Below are all known file types that Babuk is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. Babuk updates the last modified date of the file it targets.

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Characteristics of Babuk

Here are some of the unique characteristics that are helpful to know about Babuk.


Some ransomware will change or append a suffix to the end of the file after they are encrypted, including changing the extension of a file. Here are some of the possible suffixes that Babuk ransomware is known to change.

Suffixes.__NIST_K571__, .babyk, .doydo, .encrypted, .Rook, .blastoise, .cyber, .kings, .ljubi, .democ, .AstraLocker, .zazas, .crypt, .Astra, .babuk2, .piton, .delta

Ransomware Notes

Not all ransomware leaves a note. However, some ransomware leaves the infected party instructions on what the user should do to get rid of the ransomware, or satisfy the ransom. This often involves transferring money, often bitcoin or another cryptocurrency to a designated wallet.

Below are the type(s) of notes, content, and typical locations where Elastio has found ransom notes from Babuk.

File NameHow To Restore Your Files.txt
File NameHelp Restore Your Files.txt


These are the names of the executables that contain the undetonated ransomware payload for Babuk.

Executablesserco.exe, crypto.exe, r_server.exe, servspool.exe, kings.exe, Stage1.exe, RS_Doydo.exe, orion.exe, update.exe

External Pages

Ransomware often links to external pages such as payment pages, telegram contacts, etc. Below are some of the URLs Elastio has found to be associated with Babuk.

External Pages
  • http://babukq4e2p4wu4iq.onion
  • http://gtmx56k4hutn3ikv.onion
  • http://isqtoimht5llucldrw7flyak2n5zdu4dmd7kdfs6tuasrxq7qydqs2qd.onion
  • mailto:babukrip@protonmail.ch
  • mailto:babuckransom@tutanote.com
  • mailto:recover300dollars@gmail.com
  • mailto:successroket@onionmail.org
  • mailto:valorantskins108@gmail.com
  • mailto:chernobylransomware@protonmail.com
  • mailto:cyberwar4@rambler.ru
  • mailto:decryptydata2@gmx.net
  • mailto:alexnoyz2@mein.gmx
  • mailto:ljubisupporte@protonmail.com
  • mailto:support.3330@gmail.com
  • mailto:deltapaymentbitcoin@gmail.com
  • mailto:retrievedata300@gmail.com
  • mailto:decryptdelta@gmail.com
How Elastio can help

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