BlackMatter
Intelligence Profile
According to PCrisk, BlackMatter is a piece of malicious software categorized as ransomware. It operates by encrypting data for the purpose of making ransom demands for the decryption tools. In other words, files affected by BlackMatter are rendered inaccessible, and victims are asked to pay - to recover access to their data.
During the encryption process, files are appended with an extension consisting of a random character string. For example, a file initially named "1.jpg" would appear as something similar to "1.jpg.k5RO9fVOl". After this process is complete, the ransomware changes the desktop wallpaper and created a ransom note - "[random_string].README.txt" (e.g., k5RO9fVOl.README.txt).
Threat Analysis
BlackMatter is a malware family tracked by threat intelligence researchers and catalogued in the Malpedia dataset. It represents a distinct malicious software lineage with identifiable code characteristics, behaviors, and victimology.
Financially motivated threat actors like BlackMatter prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.
With high sophistication, BlackMatter is capable of targeted intrusions using adapted commodity tools alongside custom implants, maintaining operational security and evading standard detection mechanisms.