Ransomware Research

Tisak

Tisak was first discovered in December 2023 in enterprise cloud environments.

Name

Tisak

 

First Seen

December 2023

Targeting

Behavior of Tisak

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

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

Details

Characteristics of Tisak

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 Tisak ransomware is known to change.

Suffixes

.Tisak

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 Tisak.

Type

File Name

Location

file

Tisak_Help.txt

EveryFolder

Executables

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

Executables

svhost.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 Tisak.

External Pages

  • mailto:tisak1998@skiff.com
  • mailto:tisak1998@cyberfear.com

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