Ransomware Research

DeepInDeep Ransomware

DeepInDeep is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2023, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
DeepInDeep
First Seen
November 1, 2023

How DeepInDeep Ransomware Works

Targeted Files

Fill extension -> .id[C63F241F-3511].[Deep_in_Deep@tutanota.com].deepindeep

File Encryption Patterns

DeepInDeep modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..deepindeep

Ransom Note and Payment Demands

After encrypting files, DeepInDeep displays ransom notes demanding payment for file recovery:

fileinfo.txt

Ransom message:

notes/info.txt

Note locations:

RootDiscsDesktop
fileinfo.hta

Ransom message:

notes/info.hta

Note locations:

RootDiscsDesktop

Technical Indicators

Associated Executable Files

The following executable files are associated with DeepInDeep ransomware:

  • AntiRecuvaDB.exe

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About This Analysis

This DeepInDeep ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like DeepInDeep.

Last updated: July 30, 2025

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