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Threat Group Cards: A Threat Actor Encyclopedia

Tool: BlackMatter

Names	BlackMatter
Category	Malware
Type	Ransomware, Big Game Hunting
Description	(BleepingComputer) While researching the new ransomware group, BleepingComputer found a decryptor from a BlackMatter victim and shared it with Emisosft CTO and ransomware expert Fabian Wosar. After analyzing the decryptor, Wosar confirmed that the new BlackMatter group is using the same unique encryption methods that DarkSide had used in their attacks.
Information	<https://therecord.media/blackmatter-ransomware-targets-companies-with-revenues-of-100-million-and-more/> <https://www.bleepingcomputer.com/news/security/blackmatter-ransomware-gang-rises-from-the-ashes-of-darkside-revil/> <https://www.bleepingcomputer.com/news/security/darkside-ransomware-gang-returns-as-new-blackmatter-operation/> <https://therecord.media/an-interview-with-blackmatter-a-new-ransomware-group-thats-learning-from-the-mistakes-of-darkside-and-revil/> <https://www.bleepingcomputer.com/news/security/linux-version-of-blackmatter-ransomware-targets-vmware-esxi-servers/> <https://medium.com/s2wlab/blackmatter-x-babuk-using-the-same-web-server-for-sharing-leaked-files-d01c20a74751> <https://us-cert.gov/ncas/alerts/aa21-291a> <https://blog.emsisoft.com/en/39181/on-the-matter-of-blackmatter/> <https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/blackmatter-data-exfiltration> <https://illusive.com/resources/threat-research-blog/preventing-blackmatter-ransomware-from-encryption-of-available-remote-share/> <https://blog.talosintelligence.com/2022/03/from-blackmatter-to-blackcat-analyzing.html>
Malpedia	<https://malpedia.caad.fkie.fraunhofer.de/details/win.blackmatter> <https://malpedia.caad.fkie.fraunhofer.de/details/elf.blackmatter>
AlienVault OTX	<https://otx.alienvault.com/browse/global/pulses?q=tag:blackmatter>

Last change to this tool card: 03 April 2022

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All groups using tool BlackMatter

Changed	Name	Country	Observed
APT groups
	Carbanak, Anunak		2013-Apr 2023

1 group listed (1 APT, 0 other, 0 unknown)

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