General

  • Target

    b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649.exe

  • Size

    719KB

  • Sample

    240808-17l88avdkh

  • MD5

    8474039d83805eb7b447325c3a8d1ebb

  • SHA1

    a07d537f4253745a087709a9a07c449f84deed8d

  • SHA256

    b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649

  • SHA512

    3272091bbf123ba5e1592e8b2bd7740cddcb174fa158bc6980b25ee61d92387e94a25284736253f83a6eea78b427f6717e888e843db9d7759cfe9a7676576438

  • SSDEEP

    12288:q4UOTYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuhJVoM7SPd:bRTYVQ2qZ7aSgLwuVfstRJL6YM6

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;">FEB1143025F63A6CDDDE6E8F48EEAED87DB930978A1C99F0A8A0C1D990E29B15E88CC392B6683755085BA9C44FC6A93A57B1276464D31828579471AEFFA4DBCF<br>5318F05DDFB96DB9CC61CFD0C085357158CB49D6B1B9C30AC7B52552ED5D7FAF2DC317395868444992F2845AEF3A6B5F8A36E20BF5F1BBDC8654B72BB992<br>3CC58CC2CF1F6EF8B3C3CB70FAEDDAD6CD87AB0289DDBB8B11BD80E520BE9F1CB09161DCD797F31C63457497192469182C1E26ED404DA8F3B4B3A7AB124A<br>B0CB32CC0D6946419D3BFBB58BD130D79720ADE466B272CE3848E209CCE3A758DDA6225A27615DE4D3F6E13BB5B65248CCA0AE3CD2E7DA5C3603560B008A<br>CDFB8FB4686BE80BEC5BA3E0C1B5F3823F2981CF749DE0C11446B796FB1E41C2A3491B45DF620BCDACFEA138888AD7DDC9918FB355C3C97055C012B975C1<br>9DACA411B1F8F3A177A9E14C96499F097419E99135C1526E8049AE7446BCC778BD9A22F3CE3920D327E29D107E1C3DB3BF38B9CFE925DCCFFA466D9B49D0<br>1F4746274D455C12ACF846C0DAEE2CED99152EB8D6F06122C6BB3FB4DF04F9C5E53E714AB7F8B78C8F655BFA9DC7AA69049FE7100C1827F36D047EB037F2<br>1BDB82BB793BC84ADBC8DCCEBB446CB343453E64E7616D6DF36CC8303BE647FD4A57E8ABA152256B5C0D854181373D03B6E5E664F73E66FD2D360EBC5376<br>43C9EDA8F005347A0D4075D1E90C</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/31-LPy3hdSfGLBgLSfGcKN9rubDKoa1VMK4-fCKxEgQbYZCZHHWEeUfuC1gnvrVgE6be</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\WindowsRE\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;">A5E04A812B2BEA929D97436490F02CD1BD877A241612DB3C2B76CC46F9A994F0B30C67CEB8B00996C0F017133F3EB3B474B2A3989627DDD01F1A32147D4BD971<br>6E7D2C6B8D60A7D905B93543AAC5160AEC1564EDBA9F0DBE7A04CA02B607AC11024E85F45D93EF057D3FBD057E656320F6AF6B3BC2EA16A7011CE3ACFFA6<br>32A4B4004FC9076CE6378DADD6A6E72F705AA037A63A94BAA51EF97029F3D7EBFF8C939B2F02598465C0A3322896BF263CF3D95E64A5B059D2748155006E<br>EF8966CDC3EEE54C72221188301BB4E4EB7DC6ECAC6343D29D5BC0E8E643ED3F2A345608BA5479086D6DA7050E19AD9EB16A5C8F0AFB65010381ED92CA86<br>4AC7979A854AF6D17A780BCBE27F3A6BED78AE91FD29EF093685ED3231DDDB98A5022E2D6C200BC74FCA864475DCE2FB79C52C26D52AEB7A861D7EABB792<br>59928C7499799A19AA81D2B80D88C5755460DAAC4FF583BD242CF24FE9A948A069BA83C7A5569670F61F181D01B43E8B5D3804E447EF67C7DA724CC499F7<br>43FAEDC8407413518DE8519EB5A42ED4E2756480B76590E1F40D51087A7FD4CC7077586F352F77C685B92F39A4B78E2B790A8900E34B6E732F311CE004A8<br>D2942AD9513EB741E267D96FF52E4AEEA223EDD2F5263F7245F643419CC47A71B65BBE7DA75078852F98AC25CB74251896141F8F6190965965713855B084<br>6B877150317B7DE2FB01992C4B4E</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/31-LPy3hdSfGLBgLSfGcKN9rubDKoa1VMK4-iP0G94Sc3mlI2LKSIMgNLcenKAear6ny</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

      b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649.exe

    • Size

      719KB

    • MD5

      8474039d83805eb7b447325c3a8d1ebb

    • SHA1

      a07d537f4253745a087709a9a07c449f84deed8d

    • SHA256

      b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649

    • SHA512

      3272091bbf123ba5e1592e8b2bd7740cddcb174fa158bc6980b25ee61d92387e94a25284736253f83a6eea78b427f6717e888e843db9d7759cfe9a7676576438

    • SSDEEP

      12288:q4UOTYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuhJVoM7SPd:bRTYVQ2qZ7aSgLwuVfstRJL6YM6

    • Detect Neshta payload

    • MedusaLocker

      Ransomware with several variants first seen in September 2019.

    • MedusaLocker payload

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

    • UAC bypass

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (212) files with added filename extension

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Reads user/profile data of web browsers

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

    • 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.

MITRE ATT&CK Enterprise v15

Tasks