General

  • Target

    RNSM00271.7z

  • Size

    5.4MB

  • Sample

    241122-1x34zswpcn

  • MD5

    8e22341d491446a519f87e7bd45e1890

  • SHA1

    0314c9ebc7674b7853007cf70b7133062847d0ec

  • SHA256

    2cccaf2d6e94c09a3479d42cb32152a83a007004a1fa87f6fe6f18aac1eb6d1d

  • SHA512

    d062ed6fbc280bc9e479abfaf9ef92e40d885bc55274b9ef3382f0b297739cc1065a8b3e6b41ba347ca2ed12354b73522ff27fcbb3f2445ee25997fd3c2234ee

  • SSDEEP

    98304:+xiSdzKbFSE3N3bmjiyxWDPNYqrdIP5k6CCRz/ff9oaTk:+xNKJSTqPNbyptRLff9D4

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\how_recover+vkb.txt

Ransom Note
_______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!!- What happened to your files ? All of your files were protected by a strong encryption with RSA-2048. More information about the encryption keys using RSA-2048 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) What does this mean ? This means that the structure and data within your files have been irrevocably changed, you will not be able to work with them, read them or see them, it is the same thing as losing them forever, but with our help, you can restore them. How did this happen ? Especially for you, on our server was generated the secret key pair RSA-2048 - public and private. All your files were encrypted with the public key, which has been transferred to your computer via the Internet. Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server. What do I do ? _______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!! Alas, if you do not take the necessary measures for the specified time then the conditions for obtaining the private key will be changed. If you really value your data, then we suggest you do not waste valuable time searching for other solutions because they do not exist. _______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!!_______!!!!!!!!!!!!!!_______!!!! For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://rbtc23drs.7hdg13udd.com/722623D89ED7C29C 2. http://tsbfdsv.extr6mchf.com/722623D89ED7C29C 3. https://alcov44uvcwkrend.onion.to/722623D89ED7C29C If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser and wait for initialization. 3. Type in the address bar: alcov44uvcwkrend.onion/722623D89ED7C29C 4. Follow the instructions on the site. IMPORTANT INFORMATION: Your personal pages: http://rbtc23drs.7hdg13udd.com/722623D89ED7C29C http://tsbfdsv.extr6mchf.com/722623D89ED7C29C https://alcov44uvcwkrend.onion.to/722623D89ED7C29C Your personal page (using TOR-Browser): alcov44uvcwkrend.onion/722623D89ED7C29C Your personal identification number (if you open the site (or TOR-Browser's) directly): 722623D89ED7C29C
URLs

http://rbtc23drs.7hdg13udd.com/722623D89ED7C29C

http://tsbfdsv.extr6mchf.com/722623D89ED7C29C

https://alcov44uvcwkrend.onion.to/722623D89ED7C29C

http://alcov44uvcwkrend.onion/722623D89ED7C29C

Extracted

Path

C:\Users\Public\Pictures\# DECRYPT MY FILES #.txt

Family

cerber

Ransom Note
C E R B E R R A N S O M W A R E ######################################################################### Cannot you find the files you need? Is the content of the files that you looked for not readable? It is normal because the files' names, as well as the data in your files have been encrypted. Great!!! You have turned to be a part of a big community #Cerber_Ransomware. ######################################################################### !!! If you are reading this message it means the software !!! "Cerber Ransomware" has been removed from your computer. ######################################################################### What is encryption? ------------------- Encryption is a reversible modification of information for security reasons but providing full access to it for authorized users. To become an authorized user and keep the modification absolutely reversible (in other words to have a possibility to decrypt your files) you should have an individual private key. But not only it. It is required also to have the special decryption software (in your case "Cerber Decryptor" software) for safe and complete decryption of all your files and data. ######################################################################### Everything is clear for me but what should I do? ------------------------------------------------ The first step is reading these instructions to the end. Your files have been encrypted with the "Cerber Ransomware" software; the instructions ("# DECRYPT MY FILES #.html" and "# DECRYPT MY FILES #.txt") in the folders with your encrypted files are not viruses, they will help you. After reading this text the most part of people start searching in the Internet the words the "Cerber Ransomware" where they find a lot of ideas, recommendations and instructions. It is necessary to realize that we are the ones who closed the lock on your files and we are the only ones who have this secret key to open them. !!! Any attempts to get back your files with the third-party tools can !!! be fatal for your encrypted files. The most part of the third-party software change data within the encrypted file to restore it but this causes damage to the files. Finally it will be impossible to decrypt your files. When you make a puzzle but some items are lost, broken or not put in its place - the puzzle items will never match, the same way the third-party software will ruin your files completely and irreversibly. You should realize that any intervention of the third-party software to restore files encrypted with the "Cerber Ransomware" software may be fatal for your files. ######################################################################### !!! There are several plain steps to restore your files but if you do !!! not follow them we will not be able to help you, and we will not try !!! since you have read this warning already. ######################################################################### For your information the software to decrypt your files (as well as the private key provided together) are paid products. After purchase of the software package you will be able to: 1. decrypt all your files; 2. work with your documents; 3. view your photos and other media; 4. continue your usual and comfortable work at the computer. If you understand all importance of the situation then we propose to you to go directly to your personal page where you will receive the complete instructions and guarantees to restore your files. ######################################################################### There is a list of temporary addresses to go on your personal page below: _______________________________________________________________________ | | 1. http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196 | | 2. http://cerberhhyed5frqa.onion.cab/6221-9649-0738-0063-7196 | | 3. http://cerberhhyed5frqa.onion.nu/6221-9649-0738-0063-7196 | | 4. http://cerberhhyed5frqa.onion.link/6221-9649-0738-0063-7196 | | 5. http://cerberhhyed5frqa.tor2web.org/6221-9649-0738-0063-7196 |_______________________________________________________________________ ######################################################################### What should you do with these addresses? ---------------------------------------- If you read the instructions in TXT format (if you have instruction in HTML (the file with an icon of your Internet browser) then the easiest way is to run it): 1. take a look at the first address (in this case it is http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196); 2. select it with the mouse cursor holding the left mouse button and moving the cursor to the right; 3. release the left mouse button and press the right one; 4. select "Copy" in the appeared menu; 5. run your Internet browser (if you do not know what it is run the Internet Explorer); 6. move the mouse cursor to the address bar of the browser (this is the place where the site address is written); 7. click the right mouse button in the field where the site address is written; 8. select the button "Insert" in the appeared menu; 9. then you will see the address http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196 appeared there; 10. press ENTER; 11. the site should be loaded; if it is not loaded repeat the same instructions with the second address and continue until the last address if falling. If for some reason the site cannot be opened check the connection to the Internet; if the site still cannot be opened take a look at the instructions on omitting the point about working with the addresses in the HTML instructions. If you browse the instructions in HTML format: 1. click the left mouse button on the first address (in this case it is http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196); 2. in a new tab or window of your web browser the site should be loaded; if it is not loaded repeat the same instructions with the second address and continue until the last address. If for some reason the site cannot be opened check the connection to the Internet. ######################################################################### Unfortunately these sites are short-term since the antivirus companies are interested in you do not have a chance to restore your files but continue to buy their products. Unlike them we are ready to help you always. If you need our help but the temporary sites are not available: 1. run your Internet browser (if you do not know what it is run the Internet Explorer); 2. enter or copy the address https://www.torproject.org/download/download-easy.html.en into the address bar of your browser and press ENTER; 3. wait for the site loading; 4. on the site you will be offered to download Tor Browser; download and run it, follow the installation instructions, wait until the installation is completed; 5. run Tor Browser; 6. connect with the button "Connect" (if you use the English version); 7. a normal Internet browser window will be opened after the initialization; 8. type or copy the address ________________________________________________________ | | | http://cerberhhyed5frqa.onion/6221-9649-0738-0063-7196 | |________________________________________________________| in this browser address bar; 9. press ENTER; 10. the site should be loaded; if for some reason the site is not loading wait for a moment and try again. If you have any problems during installation or operation of Tor Browser, please, visit https://www.youtube.com/ and type request in the search bar "install tor browser windows" and you will find a lot of training videos about Tor Browser installation and operation. If TOR address is not available for a long period (2-3 days) it means you are late; usually you have about 2-3 weeks after reading the instructions to restore your files. ######################################################################### Additional information: You will find the instructions for restoring your files in those folders where you have your encrypted files only. The instructions are made in two file formats - HTML and TXT for your convenience. Unfortunately antivirus companies cannot protect or restore your files but they can make the situation worse removing the instructions how to restore your encrypted files. The instructions are not viruses; they have informative nature only, so any claims on the absence of any instruction files you can send to your antivirus company. ######################################################################### Cerber Ransomware Project is not malicious and is not intended to harm a person and his/her information data. The project is created for the sole purpose of instruction regarding information security, as well as certification of antivirus software for their suitability for data protection. Together we make the Internet a better and safer place. ######################################################################### If you look through this text in the Internet and realize that something is wrong with your files but you do not have any instructions to restore your files, please, contact your antivirus support. ######################################################################### Remember that the worst situation already happened and now it depends on your determination and speed of your actions the further life of your files.
URLs

http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196

http://cerberhhyed5frqa.onion.cab/6221-9649-0738-0063-7196

http://cerberhhyed5frqa.onion.nu/6221-9649-0738-0063-7196

http://cerberhhyed5frqa.onion.link/6221-9649-0738-0063-7196

http://cerberhhyed5frqa.tor2web.org/6221-9649-0738-0063-7196

http://cerberhhyed5frqa.onion/6221-9649-0738-0063-7196

Extracted

Path

C:\Users\Public\Pictures\# DECRYPT MY FILES #.html

Ransom Note
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>&#067;erber Ransomware</title> <style> a { color: #47c; text-decoration: none; } a:hover { text-decoration: underline; } body { background-color: #e7e7e7; color: #333; font-family: "Helvetica Neue", Helvetica, "Segoe UI", Arial, freesans, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"; font-size: 16px; line-height: 1.6; margin: 0; padding: 0; } hr { background-color: #e7e7e7; border: 0 none; border-bottom: 1px solid #c7c7c7; height: 5px; margin: 30px 0; } li { padding: 0 0 7px 7px; } ol { padding-left: 3em; } .container { background-color: #fff; border: 1px solid #c7c7c7; margin: 40px; padding: 40px 40px 20px 40px; } .info, .tor { background-color: #efe; border: 1px solid #bda; display: block; padding: 0px 20px; } .logo { font-size: 12px; font-weight: bold; line-height: 1; margin: 0; } .tor { padding: 10px 0; text-align: center; } .warning { background-color: #f5e7e7; border: 1px solid #ebccd1; color: #a44; display: block; padding: 15px 10px; text-align: center; } </style> </head> <body> <div class="container"> <h3>C E R B E R&nbsp;&nbsp;&nbsp;R A N S O M W A R E</h3> <hr> <p>Cannot you find the files you need?<br>Is the content of the files that you looked for not readable?</p> <p>It is normal because the files' names, as well as the data in your files have been encrypted.</p> <p>Great!!!<br>You have turned to be a part of a big community #Cerber_Ransomware.</p> <hr> <p><span class="warning">If you are reading this message it means the software "Cerber Ransomware" has been removed from your computer.</span></p> <hr> <h3>What is encryption?</h3> <p>Encryption is a reversible modification of information for security reasons but providing full access to it for authorized users.</p> <p>To become an authorized user and keep the modification absolutely reversible (in other words to have a possibility to decrypt your files) you should have an individual private key.</p> <p>But not only it.</p> <p>It is required also to have the special decryption software (in your case "Cerber Decryptor" software) for safe and complete decryption of all your files and data.</p> <hr> <h3>Everything is clear for me but what should I do?</h3> <p>The first step is reading these instructions to the end.</p> <p>Your files have been encrypted with the "Cerber Ransomware" software; the instructions ("# DECRYPT MY FILES #.html" and "# DECRYPT MY FILES #.txt") in the folders with your encrypted files are not viruses, they will help you.</p> <p>After reading this text the most part of people start searching in the Internet the words the "Cerber Ransomware" where they find a lot of ideas, recommendations and instructions.</p> <p>It is necessary to realize that we are the ones who closed the lock on your files and we are the only ones who have this secret key to open them.</p> <p><span class="warning">Any attempts to get back your files with the third-party tools can be fatal for your encrypted files.</span></p> <p>The most part of the third-party software change data within the encrypted file to restore it but this causes damage to the files.</p> <p>Finally it will be impossible to decrypt your files.</p> <p>When you make a puzzle but some items are lost, broken or not put in its place - the puzzle items will never match, the same way the third-party software will ruin your files completely and irreversibly.</p> <p>You should realize that any intervention of the third-party software to restore files encrypted with the "Cerber Ransomware" software may be fatal for your files.</p> <hr> <p><span class="warning">There are several plain steps to restore your files but if you do not follow them we will not be able to help you, and we will not try since you have read this warning already.</span></p> <hr> <p>For your information the software to decrypt your files (as well as the private key provided together) are paid products.</p> <p>After purchase of the software package you will be able to:</p> <ol> <li>decrypt all your files;</li> <li>work with your documents;</li> <li>view your photos and other media;</li> <li>continue your usual and comfortable work at the computer.</li> </ol> <p>If you understand all importance of the situation then we propose to you to go directly to your personal page where you will receive the complete instructions and guarantees to restore your files.</p> <hr> <div class="info"> <p>There is a list of temporary addresses to go on your personal page below:</p> <ol> <li><a href="http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196" target="_blank">http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196</a></li> <li><a href="http://cerberhhyed5frqa.onion.cab/6221-9649-0738-0063-7196" target="_blank">http://cerberhhyed5frqa.onion.cab/6221-9649-0738-0063-7196</a></li> <li><a href="http://cerberhhyed5frqa.onion.nu/6221-9649-0738-0063-7196" target="_blank">http://cerberhhyed5frqa.onion.nu/6221-9649-0738-0063-7196</a></li> <li><a href="http://cerberhhyed5frqa.onion.link/6221-9649-0738-0063-7196" target="_blank">http://cerberhhyed5frqa.onion.link/6221-9649-0738-0063-7196</a></li> <li><a href="http://cerberhhyed5frqa.tor2web.org/6221-9649-0738-0063-7196" target="_blank">http://cerberhhyed5frqa.tor2web.org/6221-9649-0738-0063-7196</a></li> </ol> </div> <hr> <h3>What should you do with these addresses?</h3> <p>If you read the instructions in TXT format (if you have instruction in HTML (the file with an icon of your Internet browser) then the easiest way is to run it):</p> <ol> <li>take a look at the first address (in this case it is <a href="http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196" target="_blank">http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196</a>);</li> <li>select it with the mouse cursor holding the left mouse button and moving the cursor to the right;</li> <li>release the left mouse button and press the right one;</li> <li>select "Copy" in the appeared menu;</li> <li>run your Internet browser (if you do not know what it is run the Internet Explorer);</li> <li>move the mouse cursor to the address bar of the browser (this is the place where the site address is written);</li> <li>click the right mouse button in the field where the site address is written;</li> <li>select the button "Insert" in the appeared menu;</li> <li>then you will see the address <a href="http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196" target="_blank">http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196</a> appeared there;</li> <li>press ENTER;</li> <li>the site should be loaded; if it is not loaded repeat the same instructions with the second address and continue until the last address if falling.</li> </ol> <p>If for some reason the site cannot be opened check the connection to the Internet; if the site still cannot be opened take a look at the instructions on omitting the point about working with the addresses in the HTML instructions.</p> <p>If you browse the instructions in HTML format:</p> <ol> <li>click the left mouse button on the first address (in this case it is <a href="http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196" target="_blank">http://cerberhhyed5frqa.onion.to/6221-9649-0738-0063-7196</a>);</li> <li>in a new tab or window of your web browser the site should be loaded; if it is not loaded repeat the same instructions with the second address and continue until the last address.</li> </ol> <p>If for some reason the site cannot be opened check the connection to the Internet.</p> <hr> <p>Unfortunately these sites are short-term since the antivirus companies are interested in you do not have a chance to restore your files but continue to buy their products.</p> <p>Unlike them we are ready to help you always.</p> <p>If you need our help but the temporary sites are not available:</p> <ol> <li>run your Internet browser (if you do not know what it is run the Internet Explorer);</li> <li>enter or copy the address <a href="https://www.torproject.org/download/download-easy.html.en" target="_blank">https://www.torproject.org/download/download-easy.html.en</a> into the address bar of your browser and press ENTER;</li> <li>wait for the site loading;</li> <li>on the site you will be offered to download Tor Browser; download and run it, follow the installation instructions, wait until the installation is completed;</li> <li>run Tor Browser;</li> <li>connect with the button "Connect" (if you use the English version);</li> <li>a normal Internet browser window will be opened after the initialization;</li> <li>type or copy the address <span class="tor">http://cerberhhyed5frqa.onion/6221-9649-0738-0063-7196</span> in this browser address bar;</li> <li>press ENTER;</li> <li>the site should be loaded; if for some reason the site is not loading wait for a moment and try again.</li> </ol> <p>If you have any problems during installation or operation of Tor Browser, please, visit <a href="https://www.youtube.com/results?search_query=install+tor+browser+windows" target="_blank">https://www.youtube.com/</a> and type request in the search bar "install tor browser windows" and you will find a lot of training videos about Tor Browser installation and operation.</p> <p>If TOR address is not available for a long period (2-3 days) it means you are late; usually you have about 2-3 weeks after reading the instructions to restore your files.</p> <hr> <h3>Additional information:</h3> <p>You will find the instructions for restoring your files in those folders where you have your encrypted files only.</p> <p>The instructions are made in two file formats - HTML and TXT for your convenience.</p> <p>Unfortunately antivirus companies cannot protect or restore your files but they can make the situation worse removing the instructions how to restore your encrypted files.</p> <p>The instructions are not viruses; they have informative nature only, so any claims on the absence of any instruction files you can send to your antivirus company.</p> <hr> <p>Cerber Ransomware Project is not malicious and is not intended to harm a person and his/her information data.</p> <p>The project is created for the sole purpose of instruction regarding information security, as well as certification of antivirus software for their suitability for data protection.</p> <p>Together we make the Internet a better and safer place.</p> <hr> <p>If you look through this text in the Internet and realize that something is wrong with your files but you do not have any instructions to restore your files, please, contact your antivirus support.</p> <hr> <p>Remember that the worst situation already happened and now it depends on your determination and speed of your actions the further life of your files.</p> </div> </body> </html>

Targets

    • Target

      RNSM00271.7z

    • Size

      5.4MB

    • MD5

      8e22341d491446a519f87e7bd45e1890

    • SHA1

      0314c9ebc7674b7853007cf70b7133062847d0ec

    • SHA256

      2cccaf2d6e94c09a3479d42cb32152a83a007004a1fa87f6fe6f18aac1eb6d1d

    • SHA512

      d062ed6fbc280bc9e479abfaf9ef92e40d885bc55274b9ef3382f0b297739cc1065a8b3e6b41ba347ca2ed12354b73522ff27fcbb3f2445ee25997fd3c2234ee

    • SSDEEP

      98304:+xiSdzKbFSE3N3bmjiyxWDPNYqrdIP5k6CCRz/ff9oaTk:+xNKJSTqPNbyptRLff9D4

    • CTB-Locker

      Ransomware family which uses Tor to hide its C2 communications.

    • Cerber

      Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    • Cerber family

    • Ctblocker family

    • Modifies visiblity of hidden/system files in Explorer

    • Troldesh family

    • Troldesh, Shade, Encoder.858

      Troldesh is a ransomware spread by malspam.

    • Contacts a large (16421) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Renames multiple (251) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Adds policy Run key to start application

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks