Overview

overview

10

Static

static

10

05b51b5f41...73.exe

windows7-x64

10

05b51b5f41...73.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    05b51b5f41e483020d14126522a13c69b75e5cbb093a78980877bb60cf778873
  • Size 666KB
  • Sample230822-kwsnvsbb74
  • SHA256 05b51b5f41e483020d14126522a13c69b75e5cbb093a78980877bb60cf778873
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
medusalockerevasionransomwarespywarestealertrojan

Malware Config

Extracted

Path

  • \Device\HarddiskVolume1\Boot\!-Recovery_Instructions-!.html

Ransom Note
  • <!DOCTYPE html> <html lang="en"> <head> <meta charset='utf-8'> <meta name='viewport' content='width=device-width,initial-scale=1'> <title></title> <style> html, body { background-color: #1a1a1a; } body { padding-top: 1rem !important; font-size: 1.3rem; color: white; } #text h2 { font-size: 2rem; font-weight: 600; line-height: 1.125; } .container { max-width: 1152px; flex-grow: 1; margin: 0 auto; position: relative; width: auto; } .box { background-color: #242424; display: block; padding: 1.25rem; border: 1px solid #303030; } a { color: #00b4d8; text-decoration: none; } a:hover { text-decoration: underline; } li { margin-bottom: 10px; } </style> </head> <body> <div class='container'> <div class='box'> <div id='text'> <h2>If you get this message, your network was hacked!</h2> <p>After we gained full access to your servers, we first downloaded a large amount of sensitive data and then encrypted all the data stored on them.</p> <p>That includes personal information on your clients, partners, your personnel, accounting documents, and other crucial files that are necessary for your company to work normally.</p> <p>We used modern complicated algorithms, so you or any recovery service will not be able to decrypt files without our help, wasting time on these attempts instead of negotiations can be fatal for your company.</p> <p>Make sure to act within <span style='color:#f4a261;'>72</span> hours or the negotiations will be considered failed!</p> <p>Inform your superior management about what's going on.</p> <p> Contact us for pricing and decryption software.</p> <p> Contact us by email:<p> <h2>[email protected]</h2> </p>If you do not receive a response within 24 hours, please contact us at our additional contacts:</p> <p> 1) Download for TOX CHAT https://tox.chat/download.html</p> <p> 2) Open chat<p> <p>Add ID Chat: </p><h2>3C9D49B928FDC3C15F0314217623A71B865909B308576B4B0D10AEA62C98677B4A3F160D5C93</h2> <p>If we did not answer you, leave the chat enabled, the operator will contact you!<p> </p>To verify the possibility of the recovery of your files we can decrypted 1-3 file for free.</p> </p>Attach file to the letter (no more than 5Mb).</p> <h2>If you and us succeed the negotiations we will grant you:</h2> <ul> <li>complete confidentiality, we will keep in secret any information regarding to attack, your company will act as if nothing had happened.</li> <li>comprehensive information about vulnerabilities of your network and security report.</li> <li>software and instructions to decrypt all the data that was encrypted.</li> <li>all sensitive downloaded data will be permanently deleted from our cloud storage and we will provide an erasure log.</li> </ul> <h2>Our options if you act like nothing's happening, refuse to make a deal or fail the negotiations:</h2> <ul> <li>inform the media and independent journalists about what happened to your servers. To prove it we'll publish a chunk of private data that you should have ciphered if you care about potential breaches. Moreover, your company will inevitably take decent reputational loss which is hard to assess precisely.</li> <li>inform your clients, employees, partners by phone, e-mail, sms and social networks that you haven't prevent their data leakage. You will violate laws about private data protection.</li> <li>start DDOS attack on you website and infrastructures.</li> <li>personal data stored will be put on sale on the Darknet to find anyone interested to buy useful information regarding your company. It could be data mining agencies or your market competitors.</li> <li>publish all the discovered vulnerabilities found in your network, so anyone will do anything with it.</li> </ul> <h2>Why pay us?</h2> <p>We care about our reputation. You are welcome to google our cases up and be sure that we don't have a single case of failure to provide what we promissed.</p> <p>Turning this issue to a bug bounty will save your private information, reputation and will allow you to use the security report and avoid this kind of situations in future.</p> <h2>Your personal ID</p> Your ID: 7B462FAEEC374B269671573B707B17CF854227A5467F5EC6114D8AD066AB1DA5C27B37A8C7A5E60D6712E0571090C137073B39A5C6B69DEF74719218AB7955F5<br>CEC86A0C6BC1CEAF15FF8472D7688D85E1730EA1158527741AAEDF774794D6C9985DE6F3F8F9EECCF3FB8C5DA2DEF3096B26DA6B328C5F6142DFC05B0657<br>6CE5AB6360A8A1A9E0D3D5971937CEBAB146A8B4F944E6AB0D41427A2CC761BF615B80392CCCC93B67B036485244BA37962EF964176B2E7A0E9F4840F22A<br>EB31AD4729521E4D7C0FC820233872C5AD4231708A17EE906D86DAE0810AAEE8643291601FBCE4E27A7AB363D27FA9823ACDF8A22D3CBBF1B670AA4485E6<br>B1B97AA20F48CB0D8B7C2C31CBC9F4163F090D8CC61E487DF0D4329ECC9BC9457FD160F23BCA5BBB27A47A1C156F45552D9ED42F9C33432CA6276B53D0C1<br>947F6F0EFAF7445D7A6CAB52B31F598755AFCE3009A4EDDCD8DA11078F495548A7888114FA2FC4AC8FC6615A2637AA5F4633C02EC20D3326B3AFF8331215<br>641FB274318BA2EC4FEB3C2AEF0638A298328D3F5920CDC07DBC0C92B07A0427B4A447426484B5880C485DB35B3366ED1C4690A8747885A5E1B6EC2C2245<br>900BDBAF9DCC5B7DEDE7859CF7CA0592D96C73A13FF2B52C11772FE0E6AFCE9FFAFFE1D4CB5C7F96056F7E5229CA4B4390F9AE337F325FBE2DE3C3A9C3E2<br>C35DF828D73E46A9FEEBBC053D38
Emails
URLs

  • https://tox.chat/download.html</p>

Extracted

Path

  • \Device\HarddiskVolume1\Boot\!-Recovery_Instructions-!.html

Ransom Note
  • <!DOCTYPE html> <html lang="en"> <head> <meta charset='utf-8'> <meta name='viewport' content='width=device-width,initial-scale=1'> <title></title> <style> html, body { background-color: #1a1a1a; } body { padding-top: 1rem !important; font-size: 1.3rem; color: white; } #text h2 { font-size: 2rem; font-weight: 600; line-height: 1.125; } .container { max-width: 1152px; flex-grow: 1; margin: 0 auto; position: relative; width: auto; } .box { background-color: #242424; display: block; padding: 1.25rem; border: 1px solid #303030; } a { color: #00b4d8; text-decoration: none; } a:hover { text-decoration: underline; } li { margin-bottom: 10px; } </style> </head> <body> <div class='container'> <div class='box'> <div id='text'> <h2>If you get this message, your network was hacked!</h2> <p>After we gained full access to your servers, we first downloaded a large amount of sensitive data and then encrypted all the data stored on them.</p> <p>That includes personal information on your clients, partners, your personnel, accounting documents, and other crucial files that are necessary for your company to work normally.</p> <p>We used modern complicated algorithms, so you or any recovery service will not be able to decrypt files without our help, wasting time on these attempts instead of negotiations can be fatal for your company.</p> <p>Make sure to act within <span style='color:#f4a261;'>72</span> hours or the negotiations will be considered failed!</p> <p>Inform your superior management about what's going on.</p> <p> Contact us for pricing and decryption software.</p> <p> Contact us by email:<p> <h2>[email protected]</h2> </p>If you do not receive a response within 24 hours, please contact us at our additional contacts:</p> <p> 1) Download for TOX CHAT https://tox.chat/download.html</p> <p> 2) Open chat<p> <p>Add ID Chat: </p><h2>3C9D49B928FDC3C15F0314217623A71B865909B308576B4B0D10AEA62C98677B4A3F160D5C93</h2> <p>If we did not answer you, leave the chat enabled, the operator will contact you!<p> </p>To verify the possibility of the recovery of your files we can decrypted 1-3 file for free.</p> </p>Attach file to the letter (no more than 5Mb).</p> <h2>If you and us succeed the negotiations we will grant you:</h2> <ul> <li>complete confidentiality, we will keep in secret any information regarding to attack, your company will act as if nothing had happened.</li> <li>comprehensive information about vulnerabilities of your network and security report.</li> <li>software and instructions to decrypt all the data that was encrypted.</li> <li>all sensitive downloaded data will be permanently deleted from our cloud storage and we will provide an erasure log.</li> </ul> <h2>Our options if you act like nothing's happening, refuse to make a deal or fail the negotiations:</h2> <ul> <li>inform the media and independent journalists about what happened to your servers. To prove it we'll publish a chunk of private data that you should have ciphered if you care about potential breaches. Moreover, your company will inevitably take decent reputational loss which is hard to assess precisely.</li> <li>inform your clients, employees, partners by phone, e-mail, sms and social networks that you haven't prevent their data leakage. You will violate laws about private data protection.</li> <li>start DDOS attack on you website and infrastructures.</li> <li>personal data stored will be put on sale on the Darknet to find anyone interested to buy useful information regarding your company. It could be data mining agencies or your market competitors.</li> <li>publish all the discovered vulnerabilities found in your network, so anyone will do anything with it.</li> </ul> <h2>Why pay us?</h2> <p>We care about our reputation. You are welcome to google our cases up and be sure that we don't have a single case of failure to provide what we promissed.</p> <p>Turning this issue to a bug bounty will save your private information, reputation and will allow you to use the security report and avoid this kind of situations in future.</p> <h2>Your personal ID</p> Your ID: E818DA05D485551DAD4C22500DCFCE7459EFED9BDB5304CF445557D193F3D9B91EDD60EFE0C755AF9D4F19C61AE9BB552CB29D71436ADCEA3A3FCF6A23F1FA4C<br>24006D8E7E5FF9295EF744609AD2AE9CB1360B47AE93777E1F207FE72C7975CB785B82C72D4DAB3B295440706CEE68177B967913E354C7917EA8C4B42DA0<br>0A73820DC192582D6F2908A8F57CB3CD1223B09E9FED359250C83AC3AA5DB2C7E361A90A078609135B48FCBF953AC770CCAC85AC24BAC4494CE937764C3E<br>3D14BAD5F15EE3535C9BD638BF861C4531E710FE8FC793BBA0B028C13D8199157D03433599756E9841D6A52D08CCC2DEB799E05CB93FDEE079267B9CA1B3<br>BDD280CA4203E3AEA71A61FA79C0D3531FB8154FBDF3DDFDBDA0368633A2CE43CA54D615BA85BF78C4F876233E6652874F9D3BF2441920D532B0B7F3FB8C<br>EF802C9B21BDC51AB7BCC42B0780F10070830ED2FC954455BC05E118C493165DD81FC159000519F9C3207E6469905B145AEE48AF7D6A8FAE2B3889290E7D<br>233EBD316C37E16B9171A8BA4C57D4BCF97758C1E6D4B05CA6FE3BB590579B99E3DCFD250E2944ADFB9937A347C9250ACFEFCDD10EA80034745352014942<br>6E4DE1B2F5AD3C11E2EA633D22CFA3242E72DED5C3C50751CFBAB7E0A417159D34735933E0E938FB93C55C81F77E2820E858A8DBE0FF62BA799A7AE87A34<br>3E6A5FEB5C11033CF5431976B805
Emails
URLs

  • https://tox.chat/download.html</p>

Targets

    • Target
      05b51b5f41e483020d14126522a13c69b75e5cbb093a78980877bb60cf778873
    • Size 666KB
    • SHA256 05b51b5f41e483020d14126522a13c69b75e5cbb093a78980877bb60cf778873
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    medusalockerevasionransomwarespywarestealertrojan

    • 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

    • Renames multiple (200) files with added filename extension

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

      ransomware

    • Renames multiple (300) files with added filename extension

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

      ransomware

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • 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 v15

Tasks