Overview

overview

10

Static

static

10

2d9172f856...cf.exe

windows7_x64

10

2d9172f856...cf.exe

windows10-2004_x64

10

Sharing

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General

  • Target
    2d9172f85666ccd84d4d4087deb491247a168c1668f0095c8b4f042d3b0ad4cf
  • Size 678KB
  • Sample220201-s85syshaaq
  • SHA256 2d9172f85666ccd84d4d4087deb491247a168c1668f0095c8b4f042d3b0ad4cf
  • 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;">6E6C8C79E2F0BB8092AA37291780F348150F5A83BF2ED5A7826B04FEC5F1F248F0AF928F1DAC49D71A90DBC38480FCA5322EE66129C87E051A6BF2C145149737<br>516AECACBC6F1AA77D5F1FBDD96B11F50D9FB07502A6B02A2C1310674B2ECCA8FB548A13A818A24249AE0473D4BFB25A63BB53551FE00154BC2B6F7FE0AE<br>DA9BD5DB916F2F5A3B3C46288A7F1A59FEBF2A8ABE52BE5C0E1BA882B436D11D867EE839C0EE5EC83AA2433EF3013223D23D461887F8A02526895CA7E0FF<br>D494C3DE996B6B0D1B266F609D8A8CD3B39E048E302B0C28E3C74506D53A0DB60EDB32A05C2E45CE294F33DAABE4E94F868E557A54BAED59C762C876F0C2<br>BDDA1FCD95319A70D1127844F8A235C5C39612ED77A5D435A7BA584B5CAA3719461ADCAD52F38BD65DC66A9EFB527F773A2F881BE006E793FB5B81FA595F<br>C6697F6086E9055914B6BC93F747EBE666EA711BC3797249239AED59E426B37510F317425D8789D4F136270D677A37ACDD3B0609BB5F61633CED70F0CC84<br>B9303024356073494E9E41C214555E7CBFB23233C5CCEDFACF265BB01738D20E1E5537801338D69FA510EA4EDCF554320505870B1B86D3A5DDB463C92CDE<br>0D1E15E64E9C3B013EAE87C866340D81A21BA0AF856A76144A430F67DFA1DD557A9407084CF4C54D5824FD8D732711966816D113187A02D4A005805FD941<br>26F2A7AAC31E7FFCC22884E4EB71</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/8-gRp514hncgb1i1sjtD32hG6jTbUh1ocR-MyQ2FUc2WYLhY26QL7D0LrJQHM6TtYEm</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="mailto:[email protected]">[email protected]</a> <br><a href="mailto:[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>
Emails

Extracted

Path

  • \??\Z:\Boot\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;">D2701FF27515A7E692B9E44B0F3C96E1B578127FE76F4132F5C3C196860845BDFB60581D7EB84A4AA7F81021F48944C0435313B58272DF28A8B64750676BF73D<br>EA652D41FBDF8F0D36F8F2CEBD102B34593B99C69D82EDAC07CC5AE8B44D37DC5467E331E7FA16241F4E68D011C5FA5B9BCED33DE1E9270E4AB0FF15719E<br>56133F76C6201C40E4FD8A68712A986F1B8C3124EA4CDE66FC7D9C062A3561D477FA3DB12FDEB82135A8231C68265F1A592CDF74EA6CDA23E9E97F0176C7<br>D88CBF547D7D9FE0E0D48D78532041F555A9EE13DC5C47E3D159502CA0BAC3F8E30BCF8C98FCD81E0D177FCE5687D86189CB5AA2B79C6D8A0CB0CE8DF18A<br>1224509F1500AF8A88F587BD668814454C5FD8AA477EEF5DDB43AB49828F4C9A70BAEF2401B38EF2A4C6FF6422D7FD2032A11ED5D77E9F06B32E4BF733EB<br>1ED2AEF8D99E601CC22FA6E2028E2C926E0EC30A0225A57C443428BCECC81CF5901A7773EF3CCB3FF802072417634794391C1E09BA3D0F587329A9EC3093<br>57FBFC8F5C9455E7796442D8CD24F14F4DFE2C4D2848223A9AF3A0DB930F54EE992D2726032981C7767390F8B469E003101139C03DCDDD13DC4292735810<br>18844E6399357889F09D9786891F4856ABB1F83A351D4E6E1EAC3EE1F824AD5B121118A83DD135489E193200C5308C97109A1335157EB70367D4BE87B846<br>3B47EAD7A75B4774F221D6591414</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/8-gRp514hncgb1i1sjtD32hG6jTbUh1ocR-778wnLmNnsPonIaDJPNIOb5mVXxWdTmE</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="mailto:[email protected]">[email protected]</a> <br><a href="mailto:[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>
Emails

Targets

    • Target
      2d9172f85666ccd84d4d4087deb491247a168c1668f0095c8b4f042d3b0ad4cf
    • Size 678KB
    • SHA256 2d9172f85666ccd84d4d4087deb491247a168c1668f0095c8b4f042d3b0ad4cf
    • 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