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Ransomware Research

Mimic

Mimic was first discovered in September 2024 in enterprise cloud environments.

Name

Mimic

 

First Seen

September 2024

Targeting

Behavior of Mimic

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

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

Details

Characteristics of Mimic

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 Mimic ransomware is known to change.

Suffixes

/.datastore@cyberfear.com-S{40,50}$/

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 Mimic.

Type

File Name

Location

file

README.txt

RootDiscs, Desktop

Executables

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

Executables

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 Mimic.

External Pages

  • mailto:datastore@cyberfear.com
  • mailto:back2up@swismail.com

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