Ransomware Research

AnonTsugumi

AnonTsugumi was first discovered in September 2023 in enterprise cloud environments.

Name

AnonTsugumi

 

First Seen

September 2023

Targeting

Behavior of AnonTsugumi

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

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

Details

Characteristics of AnonTsugumi

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 AnonTsugumi ransomware is known to change.

Suffixes

.anontsugumi

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 AnonTsugumi.

Type

File Name

Location

file

README.txt

EveryFolder

Executables

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

Executables

anon.exe, svchost.exe, JJoIMcbu9pOmnpU.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 AnonTsugumi.

External Pages

  • telegram:@anontsugumi

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