Ransomware Research

About Annabelle 2.1

Annabelle 2.1

Annabelle 2.1 was first discovered in March 2019 in enterprise cloud environments.

Name Annabelle 2.1
First Seen March 2019


To better understand Annabelle 2.1, we can trace it’s origins. Below is a snapshot of Annabelle 2.1’s genealogy.

Annabelle » Annabelle 2.1

Behavior of Annabelle 2.1

Annabelle 2.1 is known to target specific file types. Below are all known file types that Annabelle 2.1 is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. Annabelle 2.1 unknown the last modified date of the file it targets.

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Characteristics of Annabelle 2.1

Here are some of the unique characteristics that are helpful to know about Annabelle 2.1.


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 Annabelle 2.1 ransomware is known to change.


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 Annabelle 2.1.



These are the names of the executables that contain the undetonated ransomware payload for Annabelle 2.1.

ExecutablesAnnabelle.exe, myfile.exe
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