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Ransomware Research

Medusa Stealer

Medusa Stealer was first discovered in October 2022 in enterprise cloud environments.

Name

Medusa Stealer

 

First Seen

October 2022

Targeting

Behavior of Medusa Stealer

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

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

Details

Characteristics of Medusa Stealer

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 Medusa Stealer ransomware is known to change.

Suffixes

.medusastealer

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 Medusa Stealer.

Type

File Name

Location

message

Executables

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

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 Medusa Stealer.

External Pages

  • https://medusa-stealer.cc
  • mailto:medusa-stealer@protonmail.com

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