General

  • Target

    f05df52a73ea28f25d0a85f927f2444a_JaffaCakes118

  • Size

    678KB

  • Sample

    241214-yb75pstncr

  • MD5

    f05df52a73ea28f25d0a85f927f2444a

  • SHA1

    a5c00571f42bad2f17db4d4032b07318abc6f7f1

  • SHA256

    1e2335fef46f7320069623fff6702acb41c2877aff5fec83d94a561af37c3c7a

  • SHA512

    0b2a3a0bde6fcc23565ccdb1df49727930ad53345f91a3450455d0e8fb431a59af74a169d8c6ae2195afc340d7fde42969638f5d4de5501d1f75737be625e0b2

  • SSDEEP

    12288:cPJ4U0TYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuYJVoM7:JzTYVQ2qZ7aSgLwuVfstRJLHYM

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;">49CE8FB6C57FB7135285816E99E2E7891069569F23A8A9AB0904D01841841A8D8DCCE5D2DF6039815DE85BD1571FAD0272070CA36A2877065141F652126932AC<br>3163F869CB6B8484FB82257BA935911436A79BFD69FECFC486A5B8AECE428E7703B2CD85A86404B726AF74ACD85295345900ACF6A7040201F7CD8096D0A5<br>B7651A23F097DA075F0DB038DF3405C3B490F6E4374CE309E39F692C26CC5B7BDA43EE6B97E198859A47E3759B761F86D7B95B026143DC29054B51BFACF7<br>C39A588215FE6B6FA65D4AD0EB5A391CA2AD21A624393A9EE72C5BE7AEB8252820ABF4EE33D4F211B56EC93F142CE6E89E4A83F8580FC5802DA549ED7E31<br>0FAED3AD4411377F27E91A028591BEDE8773A40E74249F9A3A1FD413C9589650A96F4FF9D5ACD880386CDF1F3D815640F7D9639FBF5E81C16AF931CEC1C0<br>CF8D65CC2F61AF3E585168C42F7A6B1E679C5ABF3CA89A87F08EE3280A788CC11A83B2ED018AC4764E04737607731A73994A18653E4161448125EB6EEC9E<br>6F20F1063209F34C0E7533E992066A1EFFFCE699F7FF57DBFA012BF291605443A72DE7D827C58E8367F23ECED00BEBD8256E29D8D5D6EE209E7CBCE3BC3C<br>B8E8E0C522C480263914901911E72157A8E8AC07C6243193509C9FE0FC58CD704767637AA10AC69231AC649AC173FA4E8FC7341628F5011CBC595A3F3E26<br>0565119618547ECC275B1B3F8B0E</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>qd7pcafncosqfqu3ha6fcx4h6sr7tzwagzpcdcnytiw3b6varaeqv5yd.onion</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 <a>qd7pcafncosqfqu3ha6fcx4h6sr7tzwagzpcdcnytiw3b6varaeqv5yd.onion</a><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 free email account on the site:</b> <a href="https://protonmail.com">protonmail.com<br> <hr> <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> http://gvlay6u4g53rxdi5.onion/21-9wA3X0WIwPScg5iK8DAPnytF2A39PT2k-0w5OBYWs0aAcsVXAdx0kyEMFKtNJgsma
URLs

http://gvlay6u4g53rxdi5.onion/21-9wA3X0WIwPScg5iK8DAPnytF2A39PT2k-0w5OBYWs0aAcsVXAdx0kyEMFKtNJgsma

Extracted

Path

\Device\HarddiskVolume1\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;">9DC1757ABD68AB0155DF8A00063B90015251B9E6642F0D66D1D4FD4A705451681978F3CFBACA225711E7260BC7A6D6FE24EBEEC6D96AC3DF57649DFB09831A7A<br>B42986DE92A1C02E4BA41DF7422D3C2CDD260F426A2A346740B9561A0AF8A1029676861F76635D14B88893D192CFBC0F0C46778474F88BF74386B414DA34<br>753CE99E51658B41295091988485083FDB210B641EFC7BD7631570697D845465431A4D801142614DDBF25366EC3A7E1E461EDDC5958AF9F900EF86B55530<br>37FABCCED85D61A62F7296385E7CD40D3F8CAD9699A06E5503C7BEB8B0B75582382E1926EBCD74924D55EAF5F49D69B18ACA0BFF7B483CE85209169A1327<br>114AF4A2BC0AC5E635E837E902E9B3DFF0A3DB4D16A2D2AF8EB900016921F0A7E473E918FC587EF2C0AD22375D64C3BE39406CB87CFA2D374F4CA5D23247<br>C6465720A30263D832B8119A50770BBA7C5948CABE3477EF16C5B9F6F71EFABAAACD0849FFBE525CC9C3DAF6D99098A5D237D8A19D2EB8762BFC7678480B<br>6C0871C1B7A4FD0B3DB8EA30A57639E1E7363C3BA6F9978044E83F83CA02046EDADBC83E7D35E782637375E5E799BB77EA1B27401E84E3384EAEBFF4519E<br>7A88303875199454F1441A5508BC555890282F099E691B4C5158CE7B11A0617C5E5A5C2AFC4C67D54A68BFD594EA3B8B1FCCF5C92FD75C5CB0CDB52C802E<br>6659819AF5EDA13CEBBB2C305056</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>qd7pcafncosqfqu3ha6fcx4h6sr7tzwagzpcdcnytiw3b6varaeqv5yd.onion</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 <a>qd7pcafncosqfqu3ha6fcx4h6sr7tzwagzpcdcnytiw3b6varaeqv5yd.onion</a><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 free email account on the site:</b> <a href="https://protonmail.com">protonmail.com<br> <hr> <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> http://gvlay6u4g53rxdi5.onion/21-9wA3X0WIwPScg5iK8DAPnytF2A39PT2k-ANHTGfPurEsmJ5bU0w2LEPbE9axPx4Cj
URLs

http://gvlay6u4g53rxdi5.onion/21-9wA3X0WIwPScg5iK8DAPnytF2A39PT2k-ANHTGfPurEsmJ5bU0w2LEPbE9axPx4Cj

Targets

    • Target

      f05df52a73ea28f25d0a85f927f2444a_JaffaCakes118

    • Size

      678KB

    • MD5

      f05df52a73ea28f25d0a85f927f2444a

    • SHA1

      a5c00571f42bad2f17db4d4032b07318abc6f7f1

    • SHA256

      1e2335fef46f7320069623fff6702acb41c2877aff5fec83d94a561af37c3c7a

    • SHA512

      0b2a3a0bde6fcc23565ccdb1df49727930ad53345f91a3450455d0e8fb431a59af74a169d8c6ae2195afc340d7fde42969638f5d4de5501d1f75737be625e0b2

    • SSDEEP

      12288:cPJ4U0TYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuYJVoM7:JzTYVQ2qZ7aSgLwuVfstRJLHYM

    • MedusaLocker

      Ransomware with several variants first seen in September 2019.

    • MedusaLocker payload

    • Medusalocker family

    • UAC bypass

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (197) files with added filename extension

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

    • Executes dropped EXE

    • 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