Ransomware Research

About BlackMoon


BlackMoon was first discovered in May 2020 in enterprise cloud environments.

Name BlackMoon
First Seen May 2020

Behavior of BlackMoon

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

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

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Characteristics of BlackMoon

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


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 BlackMoon 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 BlackMoon.

File NameË÷Êé.txt


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

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