BlackMatter RansomwareRemoval, Decryption and Data Recovery

Has BlackMatter ransomware infected your system? Don’t panic. This page will show you how to identify BlackMatter ransomware and how to remove it. You can also talk to our emergency ransomware rapid response team any time, 24/7, for a free consultation. Call us now to assess the damage and learn more about your options.

BeforeCrypt is a team of experienced cybersecurity professionals. Our team of highly trained technicians have helped hundreds of clients worldwide recover from ransomware attacks as quickly and safely as possible with a streamlined ransomware remediation flow.

Or read on to learn more about BlackMatter ransomware decryption.

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How to tell if BlackMatter Ransomware has infected your system

The most common way BlackMatter ransomware victims learn that they’ve been infected is through a ransom note that replaces their desktop wallpaper. Your wallpaper may be replaced with a black background with a note telling you to follow the instructions in a .txt file to get your files back.

BlackMatter Ransomware was first observed in July 2020 and claims to combine features from other dangerous ransomware strains, including DarkSide, REvil, and Lockbit 2.0. BlackMatter encrypts files and then replaces the file extensions with a random string of numbers and letters, like “.8req7mPx4”. BlackMatter uses SHA-256 encryption, which is effectively impossible to crack.

Since BlackMatter is a relatively new variant, there are no free decryption tools currently known.

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BlackMatter ransomware will place a file on your desktop that will usually include the word “README” along with a string of numbers and letters. For example, it might be called README.e34e753e.TXT.
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The file extensions on all of your files will change to a random string of numbers and letters, like .8req7mPx4.
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The readme note will direct you to download a dark web internet browser and access a TOR web service to communicate with the hackers.
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An early warning sign is your CPU running at a high utilization rate, even though you’re not doing any computation-heavy tasks.
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This may mean that you notice simple tasks taking longer than usual, or mouse movements might seem sluggish.
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If your hard drive is writing at a high rate even though you are not downloading anything, this is another sign that ransomware may be encrypting your files.
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Your antivirus software may be deactivated or behaving strangely.
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What do I do if my data is encrypted by BlackMatter ransomware?

If you’ve fallen victim to ransomware, follow these crucial steps:

1

Request 24/7 Ransomware Recovery Help

Get expert guidance to assess, contain, and recover safely.

2

Isolate Infected Systems

Disconnect infected devices to stop the spread. Avoid self-recovery.

3

Preserve Evidence Immediately

Keep ransom notes & logs. Do not restart or modify anything.

BLACKMATTER RANSOMWARE STATISTICS & FACTS

RANSOM AMOUNTS

BlackMatter is mainly focused on large corporations. This is apparent by the fact that they offer employees of large companies sums of money for helping them infect corporate networks.

Since BlackMatter is still a relatively new variant, there’s not a lot of data on the ransom amounts yet, but so far averages are generally above $100,000 USD though in some cases they reach into the millions.

Ransoms are payable in Bitcoin. It’s important to note that quick-buy methods of purchasing Bitcoin can come with heavy fees. With large ransoms, it’s also possible that buying large amounts of Bitcoin can push up purchase prices on exchanges, making it more expensive.

AVERAGE RANSOM, USD $

AVERAGE LENGTH

BlackMatter downtime can vary depending on a number of factors. On average, downtime resulting from BlackMatter ransomware attacks is average.

Downtime is usually the most expensive part of an attack. Discretion can also be important, as in many industries a ransomware attack can also damage reputation. Getting back online quickly can help to avoid an attack being publicized.

CASE OUTCOMES

So far, BlackMatter has proven to be a highly professional gang that consistently provides reliable decryption tools. However, as the BlackMatter network expands, this may not always be the case.

We maintain detailed case files to keep track of all active ransomware gangs so that we can respond appropriately to each threat.

COMMON ATTACK VECTORS

Most BlackMatter attacks utilize phishing as a primary attack vector.

Name
BlackMatter / BlackMatter Ransomware
Danger Level
Very High. Automatic data leak and privilege escalation capabilities.
Release date
2021
Affected Systems
Windows
File Extensions
Random string of numbers and letters
Ransom Note
The word README with a random string of text like README.e34e753e.TXT
Contact Email
Via a TOR dark web site
Known Scammers
None

How to identify BlackMatter ransomware

BlackMatter.txt
~+ * + ‘ BLACK | () .-.,='”‘=. – o – ‘=/_ \ | * | ‘=._ | \ `=./`, ‘ . ‘=.__.=’ `=’ * + Matter + O * ‘ . >>> What happens? Your network is encrypted, and currently not operational. We need only money, after payment we will give you a decryptor for the entire network and you will restore all the data. >>> What data stolen? From your network was stolen xxx GB of data. If you do not contact us we will publish all your data in our blog and will send it to the biggest mass media. Blog post link: http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx >>> What guarantees? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. If we do not give you decrypters or we do not delete your data, no one will pay us in the future, this does not comply with our goals. We always keep our promises. >> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/xxxxxxxxxxxxxxxxxxxx >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

Frequently asked questions

How Does Ransomware Encrypt Files?

Ransomware encrypts files using advanced cryptographic algorithms, typically AES (Advanced Encryption Standard) or RSA (Rivest-Shamir-Adleman). Once executed, the malware scans the system for specific file types and encrypts them, making them inaccessible to the user. Some variants use symmetric encryption (AES), while others combine it with asymmetric encryption (RSA) to lock files with a unique key pair.

Can You Decrypt My Ransomware Encrypted Files?

Decryption depends on the ransomware variant. In some cases, publicly available decryption tools exist, but not all attacks have a known solution. You can submit a free ransomware recovery request, and we will check for possible decryption methods.

Do I have to report a ransomware attack to regulators, and when?

In most cases involving personal data, which applies to nearly every ransomware incident, reporting is legally required. In the EU, GDPR requires notification to the relevant data protection authority within 72 hours of becoming aware of a personal data breach. The UK ICO requires the same 72-hour window. In the US, HIPAA-covered entities have 60 days to notify affected individuals (and immediately for breaches affecting 500+ people). The clock starts from awareness of the incident, not from a full technical understanding.

Is it legal to pay a ransom?

In most jurisdictions, paying a ransom is not illegal in itself — but it can become illegal if the payment ends up going to a sanctioned entity or country (OFAC-designated groups in the US, EU sanctions lists, UK Treasury lists). Before any payment, sanctions screening is essential. BeforeCrypt handles this compliance layer as a standard part of every engagement.

Will paying the ransom actually get my files back?

Most established ransomware groups do provide working decryption tools when paid — the business model depends on their reputation for delivery. However, decryptors are often slow, incomplete, or corrupt a percentage of files during recovery. This is where working with a specialist matters: BeforeCrypt tracks the delivery reliability of specific groups, negotiates sample-file decryption as proof of capability where the group allows it, and plans realistic recovery timelines based on our own engagement history with each group.

What happens if we don't pay the ransom?

Most modern ransomware groups follow through on publication threats — stolen data appears on the group's leak site, is often mirrored to Telegram and dark web forums, and may be sold to third parties. Recovery becomes limited to whatever you can rebuild from backups.

Are our files still at risk if we have working backups?

Backups protect against file loss but not against data theft. Most modern ransomware groups exfiltrate sensitive data BEFORE encryption and threaten to publish it regardless of your recovery capability. This is why leak-site publication and negotiation still matter even for organisations with clean, offline backups — and why "we can just restore from backup" rarely tells the full story.

Should we contact law enforcement after a ransomware attack?

In most jurisdictions, yes — reporting is a standard part of a ransomware incident and, in some cases, legally required. In the US, that means the FBI (via IC3 or a local field office) and CISA. In the EU, national CERT and cybercrime units. Reporting does not obligate you to any specific recovery path but does open access to threat intelligence and, occasionally, decryption tools recovered by law enforcement.

Do you have deep experience with ransomware incidents?

Yes. We’ve handled 1,700+ incidents across ransomware, BEC and data-leak extortion. We identify the variant, decide decrypt vs. clean verified restore, and guide a controlled return to operations. When needed, we support negotiation & compliance—always legally and with a clear audit trail.

Will insurers accept your findings and reports?

Yes. We produce insurer-ready incident reports with a defensible timeline, scope, likely entry path, exfiltration assessment, actions taken, and chain-of-custody. We can join the adjuster call, map our findings to your carrier’s forms, and provide GDPR/NIS2 notifications where required. Final acceptance always depends on the policy and carrier, but our packages are designed to speed up approvals and reduce back-and-forth.

How is this different from my MSP or the insurer’s hotline?

MSPs keep IT running; they’re not built for evidence handling and incident triage. Insurer panels optimize claims, not necessarily speed & clarity for your business. We work alongside both: kick off in ≤2h, run forensic triage with chain-of-custody, coordinate safe containment, and deliver executive- and insurer-ready findings—without taking your environment hostage.

Why Should I Use A Cyber Incident Service?

Because it turns chaos into fast, safe recovery. We cut downtime and limit damage while preserving evidence. Within ≤48h you get a forensic triage pack (timeline, likely entry path, scope, decrypt-vs-clean-restore decision, go-live criteria) so leadership can act with confidence. Result: controlled, verified restart—not guesswork.