Overview

overview

10

Static

static

10

09198fa825...26.exe

windows7_x64

10

09198fa825...26.exe

windows10-2004_x64

10

Sharing

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General

  • Target
    09198fa8250aef54bdc416ee2e223cc20bfcd88c5bec4aa29f815425e1744f26
  • Size 678KB
  • Sample220201-tbee6shaem
  • SHA256 09198fa8250aef54bdc416ee2e223cc20bfcd88c5bec4aa29f815425e1744f26
  • MD5 SHA1 SHA512
Score
10/10
medusalockerevasionpersistenceransomwarespywarestealertrojan

Malware Config

Extracted

Path

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Recovery_Instructions.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; } .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;">974112226C0AF6DC25F8792B7820834D7FEAAE81304ED22EB8800EE93B6E35EFDCE60EFA5E18286B393356ACEFA1C26F31500F70474E630E232341D5296A4F63<br>E567CA95135E0D0CE02DD40B5570BDF8D6DFEE9E7D952F64243E00D56F7540E9B112F85EAE75280CD2E80B2653565EB687C931F9710906FAE630302CEC2B<br>9A6A23C7B1885191E49752AABDAA2EC11F334DAD46772D53321ADE5E362A125E29A4031229815583D1A03070788525763EB3100DE6395B666CDD85E339BC<br>3B856ECAC4FCA767AFE08FA76DE10619C82E264310A3754E7B927F1F6F73CE57A4B5829E695D05F5AC73855DA6DD66FE10C0AFCA7CA4A70E6316D786B39A<br>6133470BD6045A74572D2F151DAE99C55865D7A594BE37ED6A9741D5D6172CDA28DD08C6DCAF4AF9C46ED667AE33BF38DF7044F9C50F7C9457517D3A4071<br>6E9B997CE5D23FD17364BC2BC92A5AA7A55285C156BBC6431E73502EE7FFC000D6BD9E8D3723AA3F6544F8FDBF4AE67147766DCA78BCC99BA8F58E2E491E<br>820423E2E272E800166C8E5A0DA71778B13B39C92DDC9D44ADBE658AD496F2B71DDBF01C64FD16B3BFC4F726C9A876EC1111B9BE74DC58BCB2CA60048BE4<br>D140F2874BCA67E306E508E425AE702902F83C76D9B7E09D1FFCAB826FF5F0C2342BF05DCD67228400CC183657BB265AF93E520F9A48668F30E6A0C3AB62<br>4BDD44F4936FBF389F43F2647B32</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> <a>http://gvlay6u4g53rxdi5.onion/21-Oy6lEoptAYe8F4uaolVnfb7egHPjE6PR-1j9KFJ7dAQ1Pk09HARZcdIWMQ6bysIw0</a><br> * Note that this server is available via Tor browser only<br><br> Follow the instructions to open the link:<br> 1. Type the addres "https://www.torproject.org" in your Internet browser. It opens the Tor site.<br> 2. Press "Download Tor", then press "Download Tor Browser Bundle", install and run it.<br> 3. Now you have Tor browser. In the Tor Browser open "{{URL}}". <br> 4. Start a chat and follow the further instructions. <br><br> <hr> <b>If you can not use the above link, use the email:</b><br> <a href="[email protected]">[email protected]</a> <br><a href="[email protected]">[email protected]</a> <br> <b>* To contact us, create a new mail on the site:</b> <a href="https://protonmail.com">protonmail.com<br> <hr> <b>Make contact as soon as possible. Your private key (decryption key) <br> is only stored temporarily.<br><br> 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:\Recovery_Instructions.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; } .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;">78C5230B2F4F93EBDC0110F1BD906E3CB51866D71E5EDD9B31C4E65F76D0134FEA5F180F02E224C92517CE2FDDEC9F11090D8F001CFF61B7E3875F6CEC7305CF<br>32E5B7F52938C8F46367A5689478551962653FAE29DE09453B3D648D53F2CF5DF3EC60D243EDCD78E97EB167DB1329F69DF72E3B459C90F3C5EDD1E2A976<br>7DB14A6390DCB1C98B60769C4B266E85CD05926ABEFC86A939F0AA72D8F0B993FC24ECC0AA48A3DC1B48A04FBA639F6F85C811EC9C1AFF8C0036F5BD2026<br>F4244AC3AD6460F4B99A1AD460C8046E4559F4B961E47825BED18919C6FA7F2E7D9C9F8F38075E5469D2D1E9618C889C84218DF0D1C684E4C2DFF42401ED<br>1AB0DB4F0A87622FAD8F59C9CAEFA8B554629F98C1E36A83640D37D2F7D06E507D671431BA42F3F184CC132C1B32F2FDA904735A9AD9BE84B3E519418EF1<br>A8F71FE67D16A2FDE8F974E141169396E52B254E95421D7DBCB8DCD57EF4E9D4FA272FEFFAEAB62285C372B0F77C813C2DBB0B0AE9B333CEAA63615AB6B7<br>29A816478FC3928BFB2AFA68D61A8F109AA3ED4F5E269CCDE09AC2F22FDA35761B8B7363CDE3633D32EFCCD3E921C3208A92CB0310EBBDD002848ACF5DD7<br>EEE103464A68CE9ABEA7308374769A0E70B0B1B748EF224690A0C5375B94760D12EB11E7C43D9CC4CAF5C7B634AFE734BFF4E4B1DF023152D1570CAC910F<br>49625B517D95BDC0E648AB9AEA4E</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> <a>http://gvlay6u4g53rxdi5.onion/21-Oy6lEoptAYe8F4uaolVnfb7egHPjE6PR-eS9TcQ3xHKu4VvNx1yinadMuFs1pB27b</a><br> * Note that this server is available via Tor browser only<br><br> Follow the instructions to open the link:<br> 1. Type the addres "https://www.torproject.org" in your Internet browser. It opens the Tor site.<br> 2. Press "Download Tor", then press "Download Tor Browser Bundle", install and run it.<br> 3. Now you have Tor browser. In the Tor Browser open "{{URL}}". <br> 4. Start a chat and follow the further instructions. <br><br> <hr> <b>If you can not use the above link, use the email:</b><br> <a href="[email protected]">[email protected]</a> <br><a href="[email protected]">[email protected]</a> <br> <b>* To contact us, create a new mail on the site:</b> <a href="https://protonmail.com">protonmail.com<br> <hr> <b>Make contact as soon as possible. Your private key (decryption key) <br> is only stored temporarily.<br><br> 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
      09198fa8250aef54bdc416ee2e223cc20bfcd88c5bec4aa29f815425e1744f26
    • Size 678KB
    • SHA256 09198fa8250aef54bdc416ee2e223cc20bfcd88c5bec4aa29f815425e1744f26
    • MD5 SHA1 SHA512
    Score
    10/10
    medusalockerevasionransomwarespywarestealertrojanpersistence

    • MedusaLocker

      Ransomware with several variants first seen in September 2019.

      ransomwaremedusalocker

    • MedusaLocker Payload

    • UAC bypass

      evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Sets service image path in registry

      persistence

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks