BlackMatter.M Ransomware
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 20,572 |
| Threat Level: | 100 % (High) |
| Infected Computers: | 5 |
| First Seen: | February 19, 2026 |
| Last Seen: | April 24, 2026 |
| OS(es) Affected: | Windows |
The detection of BlackMatter.M Ransomware on your system indicates a serious security threat that requires immediate attention. Ransomware is a type of malicious software that encrypts a victim's files and demands a ransom in exchange for the decryption key. In this report, we will provide an overview of the BlackMatter.M Ransomware threat, its operating methods, symptoms of infection, and steps to remove it from your system.
Table of Contents
What Is BlackMatter.M Ransomware?
Ransomware is a type of malware that uses encryption to hold a victim's files hostage. The BlackMatter.M Ransomware detection suggests that your system has been compromised by a ransomware threat. It is essential to understand that ransomware can spread through various means, including phishing emails, infected software downloads, and exploited vulnerabilities. The primary goal of ransomware is to extort money from the victim in exchange for the decryption key.
How BlackMatter.M Ransomware Operates
Ransomware typically operates by using advanced encryption algorithms to lock a victim's files. The BlackMatter.M Ransomware is likely to follow a similar pattern, using encryption to render the victim's files inaccessible. The malware may also attempt to spread to other systems on the network, increasing the potential damage. Ransomware often uses social engineering tactics to trick victims into paying the ransom, which may not guarantee the recovery of the encrypted files.
Symptoms of Infection
Common symptoms of a ransomware infection include the inability to access files, encrypted files with unusual extensions, and ransom demands displayed on the screen. You may also notice slow system performance, unexpected crashes, or suspicious network activity. If you have experienced any of these symptoms, it is crucial to take immediate action to prevent further damage.
How to Remove BlackMatter.M Ransomware
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for a secure connection to the internet.
- Download and install a reputable anti-malware tool, such as SpyHunter, and perform a full scan of your system to detect and remove the BlackMatter.M Ransomware.
- Uninstall any suspicious programs or applications that may be related to the ransomware infection.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any potential malware components.
- Reboot your system and perform another full scan with the anti-malware tool to ensure that the BlackMatter.M Ransomware has been completely removed.
Conclusion
The detection of BlackMatter.M Ransomware is a serious security threat that requires immediate attention. By following the steps outlined in this report, you can remove the malware from your system and prevent further damage. It is essential to remember that paying the ransom does not guarantee the recovery of your files, and it is crucial to take proactive measures to protect your system from future ransomware attacks. Regularly updating your software, using strong antivirus protection, and being cautious when opening emails or downloading attachments can help prevent ransomware infections. If you are unsure about any aspect of the removal process, it is recommended to seek professional assistance to ensure the complete removal of the BlackMatter.M Ransomware.
Analysis Report
General information
| Family Name: | BlackMatter.M Ransomware |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
06434792433517e97edfa9ac0908e80e
SHA1:
b129180aecb84726b0b9093a7f0c3b9130334e6f
SHA256:
9B524739BB5311E3D29CE7CA00F494F4820C408AD2F22C7AA2FA09B0B4B9BEE1
File Size:
161.79 KB, 161792 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have resources
- File doesn't have security information
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Traits
- 2+ executable sections
- HighEntropy
- No Version Info
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 364 |
|---|---|
| Potentially Malicious Blocks: | 313 |
| Whitelisted Blocks: | 51 |
| Unknown Blocks: | 0 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- BlackMatter.A
- BlackMatter.B
- BlackMatter.D
- BlackMatter.F
- BlackMatter.M
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 | |
| Generic Write,Read Attributes,Delete,LEFT 262144 | |
| Generic Write,Read Data,Read Attributes,Delete,LEFT 262144 | |
| \\ | Generic Write,Read Attributes |
| \\ | Synchronize,Write Attributes |
| c:\$recycle.bin\s-1-5-18\aaaaaaaaaaa | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\bbbbbbbbbbb | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\ccccccccccc | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\ddddddddddd | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\desktop.ini | Generic Write,Read Attributes |
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| c:\$recycle.bin\s-1-5-18\eeeeeeeeeee | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\fffffffffff | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\ggggggggggg | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\hhhhhhhhhhh | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\iiiiiiiiiii | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\jjjjjjjjjjj | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\kkkkkkkkkkk | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\lllllllllll | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\mmmmmmmmmmm | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\nnnnnnnnnnn | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\ooooooooooo | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\ppppppppppp | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\qqqqqqqqqqq | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\rrrrrrrrrrr | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\sssssssssss | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\ttttttttttt | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\uuuuuuuuuuu | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\vvvvvvvvvvv | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\wwwwwwwwwww | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\xxxxxxxxxxx | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\yyyyyyyyyyy | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-18\zzzzzzzzzzz | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\aaaaaaaaaaa | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\bbbbbbbbbbb | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\ccccccccccc | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\ddddddddddd | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\desktop.ini | Generic Write,Read Attributes |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\eeeeeeeeeee | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\fffffffffff | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\ggggggggggg | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\hhhhhhhhhhh | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\iiiiiiiiiii | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\jjjjjjjjjjj | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\kkkkkkkkkkk | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\lllllllllll | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\mmmmmmmmmmm | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\nnnnnnnnnnn | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\ooooooooooo | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\ppppppppppp | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\qqqqqqqqqqq | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\rrrrrrrrrrr | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\sssssssssss | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\ttttttttttt | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\uuuuuuuuuuu | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\vvvvvvvvvvv | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\wwwwwwwwwww | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\xxxxxxxxxxx | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\yyyyyyyyyyy | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\zzzzzzzzzzz | Synchronize,Write Data |
| c:\$winreagent\gh8h2gdmi.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\gh8h2gdmi.readme.txt | Generic Write,Read Attributes |
| c:\inetpub\gh8h2gdmi.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\programdata\gh8h2gdmi.ico | Generic Write,Read Attributes |
| c:\sandbox_local\gh8h2gdmi.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\sandbox_stage\gh8h2gdmi.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\startup_test\gh8h2gdmi.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\gh8h2gdmi.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\downloads\b129180aecb84726b0b9093a7f0c3b9130334e6f_0000161792 | Generic Write,Read Attributes |
| c:\users\user\downloads\b129180aecb84726b0b9093a7f0c3b9130334e6f_0000161792 | Synchronize,Write Attributes |
| c:\users\user\downloads\b129180aecb84726b0b9093a7f0c3b9130334e6f_0000161792.gh8h2gdmi | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\b129180aecb84726b0b9093a7f0c3b9130334e6f_0000161792.gh8h2gdmi | Synchronize,Write Data |
| c:\users\user\downloads\gh8h2gdmi.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\gh8h2gdmi.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\software\classes\.gh8h2gdmi:: | gH8h2Gdmi | RegNtPreCreateKey |
| HKLM\software\classes\gh8h2gdmi\defaulticon:: | C:\ProgramData\gH8h2Gdmi.ico | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | 8k �v��(�1�1HO @V� A��_�zb"h{b��P� ��� ������m� Ù� ����$�8წ���&M �=�SB1_ T�Vw���%������ �AE��D��&��$���L | RegNtPreCreateKey |
