General

  • Target

    b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649

  • Size

    719KB

  • Sample

    221116-f6a5cahc76

  • 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;">C1D15809075090BCD78FC1022F3FCD26CAE946D3FBD53C06CF5B74F761BCF9D8409B319EAA8E6729CA5F228CE2FB4F3A33AD856CC0DFBC62228ECFDE7E2C2B4B<br>3D1732979D537471E186F7CED16DAC3F806F6E6CC2A4E3A10BB4A34C1347895AB3ADFFCB6168A4F2BE1675EA39D657C4D8018302E9109D409ED3E1F736AC<br>906CECB80A9A5CA56808D0FA9E3D99FD28529E7202998AFDEAC7BE47BA015E54A25943832CD8D816A934DD473DB6941DCA00D27EB1EA9166588CAEADD23B<br>3A7A160CE4E528B1FA0A6C8828DC4C89D568B6AF79AC2C1041790912FE193276FA0CD103BE6B034D2B6BD9AD2B9D65D5897FBF8E2A30338057FF897B9310<br>3EBE2432C78498F570ACA31F658F8510E038ADA30642CCFCAFB38986F73D36B062DDFFB01D072BE80DBEC3690BCDFF8759F0AEB37E6F7F43A6400ED42FB4<br>35039E4573B86CAEB150799E612027D357196DF13AA8F25E74C2FDD74C9586ABB47E164FD24DC8BDB5E9981D9D2167C9D0422F249D6CB9E3C51B31B994D7<br>EB3B2DB01532A4ECA3476E3F265092FAA5820842DFD0B5D7BD657E0E6DC15C78527FF4A4A61F94CB31AE4F2B3CFA3E6D55FA750A4A7E1337E34800C3D157<br>76F57CE04F513931D718246C763E2BDBC088D6F33DA6651D92902C7907A415DB84192B0CE0C1AD3D6F28E0A063645017EFE20F1985D62437EBE6870A1811<br>7B83135DE2796117E281FC523D86</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-X4fIcDsJ7qRA5TLSVNKgPEQa6AOkJCgv</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;">C5F790D42FE631A49063091EE657CE858CF08C25E2EFB849F0DD88187262B8340C50B39109464EA0CA018086163DAB718FA2329F7F103300D38EB9E9F208E42B<br>917AC87E9482104DFD09D22E256E76DBB281A9A6BB2288F3A6F206A9DC21A3582B5477375622C824B5FD7709D63648633690FE13DBA6DC15A980EADBD8D4<br>A7CBAE2C4D4D1B66BCE319D3E17362E92EB3010A956F7FCBCB73AA4A1EDBE807C6102ED624EA9A8EAED57C864A983C8F19C712B1568E0B2BD6C74859729C<br>F633438AA0DFD980FF99D88915DB4BD2EA9AF0FBF0CF8708CE602F7194731852137F0BA6EC834867247A3820FB4784062866CA3C6EAE242AEBC5556DE775<br>83181F7A25516925540C624535B4BE97BA4B46AE62FC54E2FCBC89E7C34D6ECF42DBEE2C489A042DAF2BDF9FF68C4B8E5147CE22F47FFFAEFA6B33F85B7A<br>FE687B2427F4837446B0B0F06B35D227E14915C3C5190891B3CD6E73AE64F461CBF4C341E51C51B52B6F558EFF698C3E9F567CAFA40CC98621E23EC78C6A<br>A4F65D11E64C9BA0278F37954B992C54B41CEF239467B26EDCBF35C15EEE72A0DF970C7F5356E2B516169007BB858BBB7799D3EA373CA0BD8B162E78380A<br>4F68B6A53C4F15AB126F0C7F4657BE2953982C10B358417F30E857A41ACE0795E02015D5FEC21EAB1ECB887BFA83F7188367D80B6598498B3A0A39221CDC<br>F1867EC762A1A7F57484CD8A383A</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-eSCtclkKIHabknajQJMcgcXagZqllN5Z</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

    • 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

    • Modifies system executable filetype association

    • 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.

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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 v6

Tasks