Ransomware Group intelligence
Blackfield
ActiveTrack Blackfield with 4 published victims and 1 known leak locations in a single intelligence view.
Overview
Blackfield is tracked by Breach House as a ransomware group with 4 published victims.
Taiwan, Province of China is currently the most targeted country in this dataset.
1 known leak locations are currently associated with this group.
Top Countries
Interactive distribution based on the currently visible victims list.
Known Leak Locations (1)
| Label | Type | Availability | Links |
|---|---|---|---|
| Leak location 1 | Onion service | Down checked 4h ago | 2mgkz2ntx5vpgt4jj4gir77eqx7g6owapm2mkzpjswyl74fni7jgdmyd.onion |
Top Activity Sectors (2)
Typical Attacks (8)
▼MITRE ATT&CK does not currently catalogue Blackfield, so this is our assessment of the techniques it uses, drawn from public reporting. The techniques themselves, and every "what that means" definition below, come from MITRE ATT&CK v19.2. Confidence: medium. Treat it as orientation, not attribution.
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T1059.001 PowerShell Execution
What they do: Blackfield executes malicious payloads through PowerShell scripts to stage ransomware components.
What that means: Adversaries may abuse PowerShell commands and scripts for execution.
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T1685 Disable or Modify Tools Defense Impairment
What they do: Blackfield disables security tools by terminating antivirus processes and modifying Windows Defender settings.
What that means: Adversaries may disable, degrade, or tamper with security tools or applications (e.g., endpoint detection and response (EDR) tools, intrusion detection systems (IDS), antivirus, logging agents, sensors, etc.) to impair or reduce visibility of defensive capabilities.
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T1027.013 Encrypted/Encoded File Stealth
What they do: Blackfield encrypts victim files with asymmetric cryptography keys embedded in the ransomware executable.
What that means: Adversaries may encrypt or encode files to obfuscate strings, bytes, and other specific patterns to impede detection.
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T1070.004 File Deletion Stealth
What they do: Blackfield deletes Volume Shadow Copies via vssadmin and system recovery points to prevent data restoration.
What that means: Adversaries may delete files left behind by the actions of their intrusion activity.
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T1083 File and Directory Discovery Discovery
What they do: Blackfield uses file and directory discovery via PowerShell to enumerate critical data paths before encryption.
What that means: Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.
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T1560.001 Archive via Utility Collection
What they do: Blackfield archives stolen financial records and insurance data using utility commands prior to exfiltration.
What that means: Adversaries may use utilities to compress and/or encrypt collected data prior to exfiltration.
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T1486 Data Encrypted for Impact Impact
What they do: Blackfield encrypts victim files using custom ransomware binaries targeting finance and legal documents.
What that means: Adversaries may encrypt data on target systems or on large numbers of systems in a network to interrupt availability to system and network resources.
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T1490 Inhibit System Recovery Impact
What they do: Blackfield runs service stop commands to disable backup and monitoring services before impact execution.
What that means: Adversaries may delete or remove built-in data and turn off services designed to aid in the recovery of a corrupted system to prevent recovery.
Ransom Notes (1)
▼The note this group leaves on a compromised machine. Click a filename to read it.
BlackField-ReadMe.txt
We are the BlackField. Your company Servers are locked and Data has been taken to our servers. This is serious. Whatever who you are and what your title is if you're reading this it means the internal infrastructure of your company is fully or partially dead, all your backups - virtual, physical - everything that we managed to reach - are completely removed. Moreover, we have taken a great amount of your corporate data prior to encryption. Well, for now let's keep all the tears and resentment to ourselves and try to build a constructive dialogue. We're fully aware of what damage we caused by locking your internal sources. At the moment, you have to know 1. Dealing with us you will save A LOT due to we are not interested in ruining your financially. We will study in depth your finance, bank & income statements, your savings, investments etc. and present our reasonable demand to you. If you have an active cyber insurance, let us know and we will guide you how to properly use it. Also, dragging out the negotiation process will lead to failing of a deal. 2. Paying us you save your TIME, MONEY, EFFORTS and be back on track within 24 hours approximately. Our decryptor works properly on any files or systems, so you will be able to check it by requesting a test decryption service from the beginning of our conversation. If you decide to recover on your own, keep in mind that you can permanently lose access to some files or accidently corrupt them - in this case we won't be able to help. 3. The security report or the exclusive first-hand information that you will receive upon reaching an agreement is of a great value, since NO full audit of your network will show you the vulnerabilities that we've managed to detect and used in order to get into, identify backup solutions and upload your data. 4. As for your data, if we fail to agree, we will try to sell personal information/trade secrets/databases/source codes - generally speaking, everything that has a value on the darkmarket - to multiple threat actors at ones. Then all of this will be published in our blog - 5. We're more than negotiable and will definitely find the way to settle this quickly and reach an agreement which will satisfy both of us. 6. Do not share the ReadME file with any intermediaries or third parties who are not trusted by you. If you choose to cooperate with middleman websites or third-party individuals and your files become damaged or you are scammed, we bear no responsibility whatsoever. 7.Dont hire recovery companies. Without the key, they cannot decrypt your files, and all they will do is make you waste more time and money. They do not care about your business. They may claim to be good negotiators, but that's not true and they usually fail. So, handle the negotiations yourself. 8.Dont trust YouTube videos, individuals, or software that claim they can decrypt your files. They are scammers and may cause the permanent loss of your data. However, if you want to be sure, you can try their methods on files that are not important to you, or make backups before testing. But rest assured, we are the only ones who can fully restore all your files. Failure to Negotiate: If you refuse to negotiate with us and ignore our goodwill and honesty, you will bear full responsibility for all the consequences that follow. A: Initially, we will publish all of your important and confidential data (including projects, customer information, confidential documents and financial records) for sale or even for free on our blog B: We will continue attacking your network at different times in the future. Additionally, we will offer your login credentials and discovered vulnerabilities for sale. C: We will email all your customers to inform them that their personal information has been leaked and published online and they will have the right to take legal action against you for exposing their private data. In addition, we will spread the news of your hack and the leak of your data on social media to destroy your reputation If you're indeed interested in our assistance and the services we provide you can reach out to us following simple instructions: Primary email: [email protected] use this as the title of your email: [snip] Secondary email (backup email in case we didn't answer you in 24h): [email protected] Keep in mind that the faster you will get in touch, the less damage we cause. We only have the two contact methods listed above. If you contact anyone else besides these two, we do not accept any responsibility under any circumstances. Keep in mind that negotiating with us is much less costly and much less troublesome than not negotiating, so be brave and reach out to us as soon as possible to avoid further losses. #OUR TOR LEAK BLOG : 1 - Download tor browser https://www.torproject.org/download 2 - Go to one of the links below: http://xcou7t6a4qlecsr7ipmxlwsseghxbebqltnxwaurxx3bbsbts7ljacqd.onion Only managers or those authorized by the organization to conduct a negotiation should contact*
Ransom-note text from RansomLook, licensed CC BY 4.0.
Victims (4)
Search, filter and paginate the victim timeline for Blackfield. Showing 1–4 of 4.
| Type | Target | Discovered | Country | Business Category | Intel Link |
|---|---|---|---|---|---|
| Ransomware | redeplastrs.com.br id30244 View details | Brazil | Manufacturing / Engineering | ||
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Redeplastrs.com.br is a company based in Brazil, operating in the manufacturing and engineering sector. The company likely provides various products and services related to plastics and engineering solutions. Redeplastrs.com.br was listed as a ransomware victim associated with Blackfield. |
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| Ransomware | redeplastrs.com.br id30244 View details | Brazil | Manufacturing / Engineering | ||
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Redeplast is a Brazilian footwear manufacturer with over 20 years of experience in the industry. The... |
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| Ransomware | ccic.com.tw id30084 View details | Taiwan, Province of China | Finance / Legal / Insurance | ||
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CCIC.com.tw is a Taiwanese company operating in the finance, legal, and insurance sectors, providing various financial services to its clients. The company is based in Taiwan and offers a range of insurance and financial products. CCIC.com.tw was listed as a ransomware victim associated with Blackfield. |
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| Ransomware | ccic.com.tw id30084 View details | Taiwan, Province of China | Finance / Legal / Insurance | ||
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Nidec Chaun-Choung Technology Corporation (CCIC) is a Taiwan-based company specializing in the d... |
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