Ransomware Research

BlackRuby-2

BlackRuby-2 was first discovered in March 2018 in enterprise cloud environments.

Name

BlackRuby-2

 

First Seen

March 2018

Targeting

Behavior of BlackRuby-2

BlackRuby-2 is known to target specific file types. Below are all known file types that BlackRuby-2 is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. BlackRuby-2 updates the last modified date of the file it targets.

Details

Characteristics of BlackRuby-2

Suffixes

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 BlackRuby-2 ransomware is known to change.

Suffixes

.BlackRuby2, .BlackRubyLight

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 BlackRuby-2.

Type

File Name

Location

file

HOW-TO-DECRYPT-FILES.txt

EveryFolder

Executables

These are the names of the executables that contain the undetonated ransomware payload for BlackRuby-2.

Executables

Windows Defender.exe, blackruby lite, host64.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 BlackRuby-2.

External Pages

  • mailto:blackruby@tutanota.com
  • mailto:theblackruby@torbox3uiot6wchz.onion

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