BlackMatter.B 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: | 18,544 |
| Threat Level: | 100 % (High) |
| Infected Computers: | 90 |
| First Seen: | July 6, 2022 |
| Last Seen: | June 15, 2026 |
| OS(es) Affected: | Windows |
The detection of BlackMatter.B Ransomware on your system indicates a serious security threat that requires immediate attention. Ransomware is a type of malware that encrypts files on a victim's device, demanding a ransom in exchange for the decryption key. In this report, we will provide an overview of the BlackMatter.B Ransomware threat, its operating methods, symptoms of infection, and steps to remove it from your system.
Table of Contents
What Is BlackMatter.B Ransomware?
Ransomware, like BlackMatter.B Ransomware, is a malicious software designed to extort money from its victims by encrypting their files and demanding a ransom. The attackers typically demand payment in cryptocurrency, such as Bitcoin, to restore access to the encrypted files. The name BlackMatter.B Ransomware suggests that it may be a variant of a known ransomware family, but without further information, it is difficult to determine its exact origin or relationship to other malware.
How BlackMatter.B Ransomware Operates
Ransomware typically operates by exploiting vulnerabilities in software or using social engineering tactics to gain access to a victim's device. Once inside, the malware encrypts files using a complex algorithm, making them inaccessible to the user. The attackers then demand a ransom, usually in the form of a pop-up window or a text file left on the desktop. The ransom demand often includes instructions on how to pay the ransom and restore access to the encrypted files. It is essential to note that paying the ransom does not guarantee that the attackers will provide the decryption key or that the files will be restored.
Symptoms of Infection
Symptoms of a BlackMatter.B Ransomware infection may include: files becoming inaccessible or encrypted, a ransom demand appearing on the screen, and unusual system behavior, such as slow performance or unexpected crashes. In some cases, the malware may also attempt to spread to other devices on the network, making it essential to isolate the infected device as soon as possible.
How to Remove BlackMatter.B Ransomware
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for internet access.
- Download and install a reputable anti-malware tool, such as SpyHunter, and perform a full scan of your system to detect and remove the malware.
- Uninstall any suspicious programs or applications that may be related to the malware.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your system and perform another full scan with the anti-malware tool to ensure that the malware has been completely removed.
Conclusion
Removing BlackMatter.B Ransomware from your system requires careful attention to detail and a thorough understanding of the malware's operating methods. By following the steps outlined in this report, you can help to ensure that your system is free from the malware and that your files are protected. However, prevention is always the best course of action, and it is essential to maintain up-to-date antivirus software, use strong passwords, and be cautious when opening email attachments or clicking on links from unknown sources to minimize the risk of infection.
Analysis Report
General information
| Family Name: | BlackMatter.B Ransomware |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
573f7bbc881c3f1e494eedbf43d2d4de
SHA1:
26b15f4fb0bc355ff1cc075b16db40bd0455eadc
SHA256:
A79AA14EA3ADB049C4B2A5B0BC1D4A5C4E19D69F8BDFB4063BA1E06D0513EF95
File Size:
147.97 KB, 147968 bytes
|
|
MD5:
2dc9eec37742a67a53e0b53b9213a9c2
SHA1:
ac893ac6c0e2f364a5aa9ce7a81e31cfb84ad45f
SHA256:
24507D071C3BC85135A99C111B6F1D4B4A62F991E86BE8156CBDB1588EE3FA3D
File Size:
144.38 KB, 144384 bytes
|
|
MD5:
9c7599a2ae86bf3eadf6281e7ec60259
SHA1:
272b42aa7507cb45322306960bd0cedfc037c88b
SHA256:
2664C1AC1713608E5A283EEDF49D304D40DCD67A0B0B1BA7F7CD22C49C6D9FF0
File Size:
153.09 KB, 153088 bytes
|
|
MD5:
df6449dd803d33a16b7f2a2f831f3b67
SHA1:
6e6a49bea6c390dff997bf0c24a39e3130bc3a22
SHA256:
A92C3B06756C07B85D2211B4C323D5A53C62203F5A9E5096CC5A49D9C9B583FE
File Size:
150.02 KB, 150016 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have relocations information
- 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
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- IMAGE_FILE_DLL is not set inside PE header (Executable)
- 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: | 365 |
|---|---|
| Potentially Malicious Blocks: | 312 |
| Whitelisted Blocks: | 53 |
| 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
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 |
Show More
| 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\$iflz083 | Generic Write,Read Attributes |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\aaaaaaaa | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\bbbbbbbb | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\cccccccc | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\dddddddd | 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\eeeeeeee | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\ffffffff | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\gggggggg | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\hhhhhhhh | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\iiiiiiii | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\jjjjjjjj | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\kkkkkkkk | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\llllllll | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\mmmmmmmm | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\nnnnnnnn | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\oooooooo | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\pppppppp | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\qqqqqqqq | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\rrrrrrrr | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\ssssssss | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\tttttttt | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\uuuuuuuu | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\vvvvvvvv | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\wwwwwwww | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\xxxxxxxx | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\yyyyyyyy | Synchronize,Write Data |
| c:\$recycle.bin\s-1-5-21-3119368278-1123331430-659265220-1001\zzzzzzzz | Synchronize,Write Data |
| c:\$winreagent\hsmdsl6oj.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\hsmdsl6oj.readme.txt | Generic Write,Read Attributes |
| c:\inetpub\hsmdsl6oj.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\programdata\hsmdsl6oj.ico | Generic Write,Read Attributes |
| c:\sandbox_local\hsmdsl6oj.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\sandbox_stage\hsmdsl6oj.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\startup_test\hsmdsl6oj.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\hsmdsl6oj.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\downloads\6e6a49bea6c390dff997bf0c24a39e3130bc3a22_0000150016 | Generic Write,Read Attributes |
| c:\users\user\downloads\6e6a49bea6c390dff997bf0c24a39e3130bc3a22_0000150016 | Synchronize,Write Attributes |
| c:\users\user\downloads\6e6a49bea6c390dff997bf0c24a39e3130bc3a22_0000150016.hsmdsl6oj | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\6e6a49bea6c390dff997bf0c24a39e3130bc3a22_0000150016.hsmdsl6oj | Synchronize,Write Data |
| c:\users\user\downloads\hsmdsl6oj.readme.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\hsmdsl6oj.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\.hsmdsl6oj:: | HSmDsl6oj | RegNtPreCreateKey |
| HKLM\software\classes\hsmdsl6oj\defaulticon:: | C:\ProgramData\HSmDsl6oj.ico | RegNtPreCreateKey |
