Windows 7 deprecation

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General

  • Target

    busavelock96.bin.exe

  • Size

    332KB

  • Sample

    230711-xmgw8abf2w

  • MD5

    881eb9957ba912beb13685dc507e7724

  • SHA1

    b4aad9a1adbe5ec389c15502d57440d0a29bfdb1

  • SHA256

    aa7d8be213152f35b5bd6e74f60cf14d5b7a88909ac79b7b25e6bf5b60ffad46

  • SHA512

    9ca26fcb63a3d6bad459c0d386638b4f1c5d07ab1ebeeb6b958adaae77fe9f277ceafd5a050bef1bb34b6b5aebc0c2a314334ecd4b610bcad296e2d4ceb79680

  • SSDEEP

    6144:PbDN9i3aojIaWQoFeyDw/VG4g189vjHBqVYGpLRztkT:d9zOWQoFLDw/VNuoytkT

Score
10/10

Malware Config

Extracted

Path

C:\MSOCache\All Users\How_to_back_files.html

Ransom Note
<html> <style type="text/css"> body { background-color: #f5f5f5; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ display: block; margin: auto; } .tabs1 .head{ text-align: center; float: top; padding: 0px; text-transform: uppercase; font-weight: normal; display: block; background: #81bef7; color: #DF0101; font-size: 30px; } .tabs1 .identi { font-size: 10px; text-align: center; float: top; padding: 15px; display: block; background: #81bef7; color: #DFDFDF; word-break: break-all; } .tabs .content { background: #f5f5f5; /*text-align: center;*/ color: #000000; padding: 25px 15px; font-size: 15px; font-weight: 400; line-height: 20px; } .tabs .content a { color: #df0130; font-size: 23px; font-style: italic; text-decoration: none; line-height: 35px; } .tabs .content .text{ padding: 25px; line-height: 1.2; } </style> <body> <div class="tabs1"> <div class="head" ><b>Your personal ID:</b></div> <div class="identi"> <span style="width:1000px; color: #ffffff; font-size: 10px;">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</span> <br> <!-- !!! dont changing this !!! --> </div> </div> <!-- --> <div class="tabs"> <!--tab--> <div class="tab"> <div id="tab-content1" class="content"> <div class="text"> <!--text data --> <b>/!\ YOUR COMPANY NETWORK HAS BEEN PENETRATED /!\</b><br> <b>All your important files have been encrypted!</b><br><br> <hr> Your files are safe! Only modified. (RSA+AES)<br><br> ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE<br> WILL PERMANENTLY CORRUPT IT.<br> DO NOT MODIFY ENCRYPTED FILES.<br> DO NOT RENAME ENCRYPTED FILES.<br><br> No software available on internet can help you. We are the only ones able to<br> solve your problem.<br><br> We gathered highly confidential/personal data. These data are currently stored on<br> a private server. This server will be immediately destroyed after your payment.<br> If you decide to not pay, we will release your data to public or re-seller.<br> So you can expect your data to be publicly available in the near future..<br><br> We only seek money and our goal is not to damage your reputation or prevent<br> your business from running.<br><br> You will can send us 2-3 non-important files and we will decrypt it for free<br> to prove we are able to give your files back.<br><br> <!--text data --> <hr> <b>Contact us for price and get decryption software.</b><br><br> <hr> <b>email:</b><br> <a href="[email protected] ">[email protected] </a> <br> <a href="[email protected] ">[email protected] </a> <br> <p>* To contact us, create a new free email account on the site: <a href="https://protonmail.com">protonmail.com <br> <b> IF YOU DON'T CONTACT US WITHIN 72 HOURS, PRICE WILL BE HIGHER.</b><br> </div> </div> </div> <!--tab--> <!--text data --> </div> </div> <!--tab--> </div> </div> </body> </html>

Extracted

Path

C:\odt\How_to_back_files.html

Ransom Note
<html> <style type="text/css"> body { background-color: #f5f5f5; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ display: block; margin: auto; } .tabs1 .head{ text-align: center; float: top; padding: 0px; text-transform: uppercase; font-weight: normal; display: block; background: #81bef7; color: #DF0101; font-size: 30px; } .tabs1 .identi { font-size: 10px; text-align: center; float: top; padding: 15px; display: block; background: #81bef7; color: #DFDFDF; word-break: break-all; } .tabs .content { background: #f5f5f5; /*text-align: center;*/ color: #000000; padding: 25px 15px; font-size: 15px; font-weight: 400; line-height: 20px; } .tabs .content a { color: #df0130; font-size: 23px; font-style: italic; text-decoration: none; line-height: 35px; } .tabs .content .text{ padding: 25px; line-height: 1.2; } </style> <body> <div class="tabs1"> <div class="head" ><b>Your personal ID:</b></div> <div class="identi"> <span style="width:1000px; color: #ffffff; font-size: 10px;">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</span> <br> <!-- !!! dont changing this !!! --> </div> </div> <!-- --> <div class="tabs"> <!--tab--> <div class="tab"> <div id="tab-content1" class="content"> <div class="text"> <!--text data --> <b>/!\ YOUR COMPANY NETWORK HAS BEEN PENETRATED /!\</b><br> <b>All your important files have been encrypted!</b><br><br> <hr> Your files are safe! Only modified. (RSA+AES)<br><br> ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE<br> WILL PERMANENTLY CORRUPT IT.<br> DO NOT MODIFY ENCRYPTED FILES.<br> DO NOT RENAME ENCRYPTED FILES.<br><br> No software available on internet can help you. We are the only ones able to<br> solve your problem.<br><br> We gathered highly confidential/personal data. These data are currently stored on<br> a private server. This server will be immediately destroyed after your payment.<br> If you decide to not pay, we will release your data to public or re-seller.<br> So you can expect your data to be publicly available in the near future..<br><br> We only seek money and our goal is not to damage your reputation or prevent<br> your business from running.<br><br> You will can send us 2-3 non-important files and we will decrypt it for free<br> to prove we are able to give your files back.<br><br> <!--text data --> <hr> <b>Contact us for price and get decryption software.</b><br><br> <hr> <b>email:</b><br> <a href="[email protected] ">[email protected] </a> <br> <a href="[email protected] ">[email protected] </a> <br> <p>* To contact us, create a new free email account on the site: <a href="https://protonmail.com">protonmail.com <br> <b> IF YOU DON'T CONTACT US WITHIN 72 HOURS, PRICE WILL BE HIGHER.</b><br> </div> </div> </div> <!--tab--> <!--text data --> </div> </div> <!--tab--> </div> </div> </body> </html>

Targets

    • Target

      busavelock96.bin.exe

    • Size

      332KB

    • MD5

      881eb9957ba912beb13685dc507e7724

    • SHA1

      b4aad9a1adbe5ec389c15502d57440d0a29bfdb1

    • SHA256

      aa7d8be213152f35b5bd6e74f60cf14d5b7a88909ac79b7b25e6bf5b60ffad46

    • SHA512

      9ca26fcb63a3d6bad459c0d386638b4f1c5d07ab1ebeeb6b958adaae77fe9f277ceafd5a050bef1bb34b6b5aebc0c2a314334ecd4b610bcad296e2d4ceb79680

    • SSDEEP

      6144:PbDN9i3aojIaWQoFeyDw/VG4g189vjHBqVYGpLRztkT:d9zOWQoFLDw/VNuoytkT

    Score
    10/10
    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Renames multiple (7552) files with added filename extension

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

    • Renames multiple (7588) files with added filename extension

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

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

    • Deletes system backups

      Uses wbadmin.exe to inhibit system recovery.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v6

Tasks