General

  • Target

    b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649.exe

  • Size

    719KB

  • Sample

    250223-pxgp7sxrbn

  • MD5

    8474039d83805eb7b447325c3a8d1ebb

  • SHA1

    a07d537f4253745a087709a9a07c449f84deed8d

  • SHA256

    b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649

  • SHA512

    3272091bbf123ba5e1592e8b2bd7740cddcb174fa158bc6980b25ee61d92387e94a25284736253f83a6eea78b427f6717e888e843db9d7759cfe9a7676576438

  • SSDEEP

    12288:q4UOTYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuhJVoM7SPd:bRTYVQ2qZ7aSgLwuVfstRJL6YM6

Malware Config

Extracted

Path

\Device\HarddiskVolume1\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;">86F25BA7239C51A165342BB15A315329041A4D46DCD54ACD4742C3A0EBC71102625B065AE26B0336ABADE0123800A7E6A3A5D969CCB3C8249A4AD82AEE17FC8E<br>F945A07FC239E15DCEAF4F47A4101C676B0A794F675B4F16C18A61B9903882A05933720B7EE11B2FDBFBF0D77727F653FEA9D22E62375FF0CD19AC37802E<br>2FC384812C2CC0E485E9B1DB135B1C60A9A6E3B012C3141E5437A6E57A7808043A8B058E6808F5B44C7F0939CFB7F25806E0079CE4E0BD629D4454EB6115<br>7633F64205D16431153E53BED2A9F70D64C75C93BAD0A7A5C84B1E4DD0ADA3F8CC7512D40B0AC43330E0E9E66F7A0A4EF76D7B7EF7CD924822FCCD4F7701<br>9120FDA954BCA51859B996661715E1733278E4DCAE8C312F85AE3C328D046A50948E76DBB6E27650B84D9A0AEAC9F8140ACFA4B96F7E6747FFAE91786B14<br>C765B8D97B0C305E3C5E7A6FF21EE11406DCFCF764BF58A244611A01BA8BA15EF099533AFEDA62AE59591575B40E99330CE97E7B51C645885BA605937756<br>CCA3F4B1CD8E8E08524413F866CB48D3154A1667E1F3C6417EE15932D36BCFEEBDD9721E810DEA2BC993DE3DA748AA767BD35FC88B6E82248D348AF3D15B<br>15752CD082FC73F5A8694AEFDF14973EEC3BF82EB60A8C319F45A0A8F19ECF1C798404B530AB85F69D2F8E7946236578B4F076011C2F7458C3B317B8D007<br>40F9198F1D6F56D9777825894399</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-LVE0W9w9i5j3EjZEYVgfwPpu43Xe7oQu</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;">812F6BBBA682A05A45D5971FCCB518E80D3038B23FAA8503B9E9DFA8768ADAB054BD59900FECFA857B50CFADC97FF2CB0BD23D36BCD40525ACBAAB651337481D<br>0C0710DD3814EAEF90C67797CBF1A78532E96FC3FC78D1136FA53FD9BE7230233D032CE2E5E2AC4F6E8932E635DBE9473D5B4D37A1E95B140BE7FFB5E840<br>10E59BE842014D98FDCF482B2C0B7AA6284C24B07A524BBCDDDD8204E8E62999AA17D46A4A48301078BFA93D82C939FE13957CAD440A643685CA8880B6A6<br>337F756ABE59075082B966C9F74FF036FE0F2BE78329020955AA2387C369A02D4D33D8026E16300B47A8C3C3EC4E7DE3AE3BFFD0899089C249EEE23E9E10<br>BA1679CC03A9FE10CB6A168521143CFAA1CECD6ECBC249A1EA3EDFADEB4835DEA326EBEC3AF38EB77DFD9E956835D08DE8F2617EF779B1450DD2D3389715<br>ACC1A867162CF57A4C25537319DF0C4EDA37A2AB48BCF017CF2CB88F7FB19D068073A1A4290F7A2772D46F0D3F669F7B8721CD7AD00E150D73CE2946859F<br>082ED658C77619C1099BA5949D885B1736A223FFF8334861203B5392523D5D9B6342659CD6463519345067DC5E3C8E1D6FD600A7E62C94C3869AE36697AE<br>A9B78AE9F9CF6EBC3EEF79B75B61067363D0799EDBA6CD26C0A3E85BA584C0D9FA9778A476F48F8A65770107615374F891A4BF81DA16E01DC2B2A324B6B5<br>FB42DA740F07B86D59E93F91D26E</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-LVE0W9w9i5j3EjZEYVgfwPpu43Xe7oQu</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

    • Medusalocker family

    • Neshta

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

    • Neshta family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (223) 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