DARKKUR Ransomware

The DARKKUR Ransomware is a threat that targets users by encrypting their data and demanding payment in exchange for the decryption key. This ransomware variant operates by appending unique identifiers assigned to each victim, along with the cyber criminals' email address and a specific extension, to the filenames of the encrypted files.

The extension used by DARKKUR varies depending on the specific variant of the ransomware. Some observed extensions include '.timecrystal1,'. 'DARKKUR1,' and. 'DarkCrypt.' To provide an example, the '.timecrystal1' variant may rename a file from '1.doc' to '1.doc.[AE3419DE[TimeCrystal@zohomail.eu].timecrystal1' after encrypting it.

Once the encryption process is complete, DARKKUR proceeds to create and display ransom notes to the victim. These ransom notes typically consist of a pop-up window from a file named 'info.hta' and a text file named 'ReadMe.txt.'

The Damage Caused by the DARKKUR Ransomware could be Devastating

The ransom notes generated by the DARKKUR Ransomware convey the same demands and instructions to the victims but use different wording. These messages serve to inform the affected individuals that their files have been encrypted, rendering them inaccessible. The only known method to regain access to the encrypted data is by purchasing the decryption keys or tools directly from the attackers.

It is important to note that neither of the ransom notes specifies the exact amount of the ransom, but they both emphasize that the victims must use the Bitcoin cryptocurrency to make the ransom payment. As a precautionary step, victims have the option to test the decryption process by sending two encrypted files to the cybercriminals, provided they adhere to certain specifications.

Furthermore, the ransom notes caution against any attempts to modify the affected files or utilize third-party decryption tools. These actions are discouraged as they may lead to permanent data loss, exacerbating the severity of the situation.

Decryption without the involvement of the attackers is typically unattainable. There have been rare instances where decryption is possible due to severe flaws in that specific ransomware threat. However, it is crucial to understand that complying with the ransom demands of the threat actors is strongly discouraged. This is due to several reasons: first, there is no guarantee that the cybercriminals will fulfill their promise of providing the decryption tools; second, paying the ransom supports and encourages this illegal activity.

Removing the DARKKUR Ransomware from the affected operating system will prevent further encryption of files. However, it is important to note that the removal process does not restore the data that has already been compromised and encrypted.

Make Sure that Your Data and Devices are Protected from Ransomware Threats

Users can take several security measures to protect their devices and data from being locked by ransomware threats. Here are some recommended practices:

• Regularly Backup Data: Implement a robust backup strategy by regularly backing up important files and info to an independent storage device or cloud storage. Ensure that the backups are conducted on a separate and isolated network or storage system, as ransomware can sometimes affect connected or shared backups.
•  Keep Software Updated: Regularly update the operating system, antivirus software, web browsers, and other applications on all devices. Software updates are crucial since they often include security patches that address vulnerabilities exploited by ransomware.
•  Use Reliable Security Software: Install reputable anti-malware software on all devices and keep it updated. These security solutions can help detect and prevent ransomware infections by scanning files, emails, and websites for potential threats.
•  Exercise Caution with Email Attachments and Links: Be wary of unsolicited emails, especially those containing attachments or links from unknown senders. Avoid opening suspicious email attachments or clicking on suspicious links, as they may lead to ransomware infections.
•  Be Cautious of Downloaded Content: Exercise caution when downloading files or software from the internet. Only download from trusted sources and verify the authenticity and integrity of the files before opening or executing them.
•  Educate and Raise Awareness: Stay informed about the latest ransomware threats and educate yourself and others on best practices for cybersecurity. Be cautious of social engineering techniques used by cybercriminals to trick users into downloading malicious content or revealing sensitive information.

By adopting these security measures and maintaining a proactive approach towards cybersecurity, users can significantly reduce the chances of falling victim to ransomware attacks and protect their devices and data from being locked or compromised.

The text of the ransom note displayed by the DARKKUR Ransomware as a pop-up window is:

'All your files have been encrypted by DARKKUR!

due to a security problem with your PC. If you want to restore them, write us to the e-mail TimeCrystal@skiff.com
Write this ID in the title of your message:-
In case of no answer in 24 hours write us to this e-mail:TimeCrystal@zohomail.eu
You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the tool that will decrypt all your files.

Free decryption as guarantee
Before paying you can send us up to 2 files for free decryption. The total size of files must be less than 4Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.)

How to obtain Bitcoins
The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price.
hxxps://localbitcoins.com/buy_bitcoins
Also you can find other places to buy Bitcoins and beginners guide here:
hxxp://www.coindesk.com/information/how-can-i-buy-bitcoins/

Attention!
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

The text file created by DARKKUR Ransomware contains the following ransom note:

[+] ALL OF YOUR VALUABLE DATA HAS BEEN ENCRYPTED.timecrystal[+]
[-] Please ensure that your files are not corrupted and that you are able to restore them today.
[+]If you use any software or method or individual for recovering your files, and your files get damaged, WE WILL NOT ACCEPT ANY RESPONSIBILITY! Your files are ENCRYPTED with a very strong and private ALGORITHM, and only our team can provide you with the DECRYPTION key!
[-] We have exclusive decryption software for your situation. Over a year ago, world experts recognized that it was impossible to decipher the data by any means other than the original decoder. There is no decryption software available to the public. Antivirus companies, researchers, IT specialists, and no other individuals can help you decrypt the data.
[-] To confirm our honest intentions, please send us two unimportant, random files, and we will decrypt them for you. These files can be from different computers on your network to ensure that one key decrypts everything. We will unlock these two unimportant files for free.
[+] Unique-ID : -
[-] Please put your Unique ID as the title of the email or as the starting title of the conversation.
[-] To get info (decrypt your files) contact us at

[+] Write Us To The ID-Telegram : @TimeCrystal
[+] Email 1 : TimeCrystal@zohomail.eu
[+] Email 2 : TimeCrystal@skiff.com

[-] You will receive btc address for payment in the reply letter

Important!
Plеаsе nоte that we are professionals and just doing our job!
Please dо nоt wаstе thе timе аnd dо nоt trу to dесеive us - it will rеsult оnly priсе incrеаsе!
Wе аrе alwауs оpеnеd fоr diаlоg аnd rеаdy tо hеlp уоu.

No system is safe'