Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    16-05-2024 23:05

General

  • Target

    37a4514026f67eeebd5a8f6786a92e30.exe

  • Size

    90KB

  • MD5

    37a4514026f67eeebd5a8f6786a92e30

  • SHA1

    937d554ef099cf95ed6004a677998c8dba0a1d98

  • SHA256

    6c4a1f74de712ee096140aba680c37ed6b7cce8c412f1e2defaee84a556c163a

  • SHA512

    66373fc7ffc0a3b1b6aa147523aeb18ecf04a768ee3791a13e3b0e9dfa7fb261284b748adfeeccaf8cbdb275d61cf56e8c9696c1ca0428fac487ca734f07af61

  • SSDEEP

    1536:fMv7odcxk1p242SAlFkJ2M8LROAnbFLPWrRBdo7VUhsoEjqZ4S5sgUgb6XY8r884:gtI52SAlF82M8RAFz0VUhsoEjqZ4S+Od

Score
10/10

Malware Config

Extracted

Path

C:\PerfLogs\# How to Decrypt Files-VOVWQ.html

Ransom Note
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Decryption Instructions</title> <style> a { color: #04a; text-decoration: none; } a:hover { text-decoration: underline; } body { background-color: #e7e7e7; color: #222; font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif; font-size: 12pt; line-height: 16pt; } body, h1 { margin: 0; padding: 0; } h1 { color: #555; text-align: center; padding-bottom: 1.5em; line-height: 1.2; } h2 { color: #555; text-align: center; line-height: 1.2; } ol li { padding-bottom: 13pt; } .container { background-color: white; border: 2pt solid #C7C7C7; margin: 3%; min-width: 600px; padding: 5% 10%; color: #444; } .header { border-bottom: 2pt solid #c7c7c7; padding-bottom: 5%; } .hr { display: block; height: 2pt; margin-top: 1.5%; margin-bottom: 1.5%; overflow: hidden; width: 100%; } .info { border: 1px solid #888; background-color: #E4E4E4; padding: 0.5em 3em; margin: 1em 0; } .text { text-align: justify; } .lsb{ display: none; margin: 3%; text-align: center; } .ls { cursor: pointer; border: 1px solid #888; border-radius: 3px; padding: 0 0.5em; margin: 0.2em 0.1em; line-height: 2em; display: inline-block; } .ls:hover { background-color: #D0D0D0; } .l { display: none; } .lu { display: none; } #change_language { float: right; display: none; } </style> </head> <body onload='javascript:onPageLoaded()'> <div class='lsb'> </div> <div class='container'> <div class="text l l-en" style='display:block'> <br> <div> <img src="data:image/png;base64,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" alt="LockLogo" /> </div> <br> <p><samp># All your files has been encrypted by "KRAKEN CRYPTOR".</samp></p> <p><samp># Read the following instructions carefully to decrypt your files.</samp></p> <br> <div class="info"> -----BEGIN KRAKEN ENCRYPTED UNIQUE KEY----- <br> BEfHLs72o2zl12kbwClxSXA+siC7j25ZHbridO3mbaZ60UJawl+1NQYMO6LFcJ5t<br>JvwJhBWNAIdwwGkgTldFCUy7Jvh3tFKW5S38yHS2X4H+28GXNPh6x/OemXVXK7WK<br>rS5LCmkNis3RqZoi9c5Z38HgeZys+AvQmrINJY5PVNugeh0uZ7QIlTWY7xrZvHRA<br>RXfd2bWVLEbr+a2jc+HCPftiM46oQ1NT9CWo+G/JQ9OK+GAkp6B70ZIYRQMWjtji<br>g3GxuIOWYObTzF+NX0TJwQOeZAs7PmxUTE2/DCf08TBWLtp8b2oiq72AQhSbfHQx<br>F0X50T9lMs0tbVsJST+MpsvJks/pH0nvzTecZFSneOMS0ZBcc5Czs1CYRRK2nS94<br>kDhoPJVqXHTSB3qq6nlBtEUO3pyMX7iUOr6jDcS6uuswWPIxqDCqS+pYUKRH6RZ9<br>Ytsaz3CNTWNXzF2eDZZQUa9HaCoDJemFJTZcfCZ8QJ+aiKv/RLY4uITAkuk1xbTh<br>IMb1JzNrFuJ9mStBisF9i9DOG0h9pNrYltrRM/hNimjMXRNXJDETVTSfgKV0QEDs<br>yX8zacWRe/m/so/bkDvR4wCbhhI/Ndp5WBDZZlAEkfwsbh0VbVQisPNnL0cSw6BJ<br>kJCag7mZYzJJaKsaj9xniMVtsLjh87PeejfdUpUoREIYrHF24/RhPif1HRSgcLqq<br>7iK2RpP4AIZRXe8JtgfloEv9s3obrg== <br> -----END KRAKEN ENCRYPTED UNIQUE KEY----- </div> <br> Extension <div class="info"> .VOVWQ </div> <br> <p style="color: #D91E18;">What happened to my computer?</p> <hr> <p>All of your files such as documents, images, videos and other files with the different names and extensions are encrypted by "KRAKEN CRYPTOR"!</p> <p>Don't delete .VOVWQ files! there are not virus and are your files, but encrypted!</p> <p>The speed, power and complexity of this encryption have been high and if you are now viewing this guide.</p> <p>It means that "KRAKEN CRYPTOR" immediately removed form your system!</p> <p>No way to recovery your files without "KRAKEN DECRYPTOR" software and your computer "UNIQUE KEY"!</p> <p>You need to buy it from us because only we can help you!</p> <br> <p style="color: #D91E18;">How can recovery my files?</p> <hr> <p>We guarantee that you can recover all your files soon safely.</p> <p>You can decrypt one of your encrypted smaller file for free in the first contact with us.</p> <p>For the decryption service, we also need your "KRAKEN ENCRYPTED UNIQUE KEY" you can see this in the top!</p> <p>Are you want to decrypt all of your encrypted files? If yes! You need to pay for decryption service to us!</p> <p>After your payment made, all of your encrypted files has been decrypted.</p> <br> <p style="color: #D91E18;">How much is need to pay?</p> <hr> <p>You need to pay (0.256 BTC), payment only can made as Bitcoins.</p> <p>This links help you to understand whats is a Bitcoins and how it work.</p> <p><a href="https://wikipedia.org/wiki/Bitcoin">https://en.wikipedia.org/wiki/Bitcoin</a></p> <p><font size="3" color="red"> This price is for the contact with us in first week otherwise it will increase.</font></p> <br> <p style="color: #D91E18;">Where can buy Bitcoins?</p> <hr> <p>The easiest way to buy Bitcoins is LocalBitcoins website.</p> <p>You must register on this site and click "BUY Bitcoins" then choose your country to find sellers and their prices.</p> <p><a href="https://localBitcoins.com">https://localBitcoins.com</a></p> <br> <p>Other places to buy Bitcoins in exchange for other currencies worldwide:</p> <p><a href="https://www.bestbitcoinexchange.io/">https://www.bestbitcoinexchange.io</a></p> <br> <p style="color: #D91E18;">How to contact you?</p> <hr> <p>We use best and easy way to communications. It's email support, you can see our emails below.</p> <p>Please send your message with same subject to both address.</p> <br> E-Mail <div class="info"> [email protected] </div> <br> Alternative <div class="info"> [email protected] </div> <br> <p style="color: #D91E18;">Attention</p> <hr> <ul type="disc"> <li>DON'T MODIFY OR RENAME ENCRYPTED FILES.</li> <li>DON'T MODIFY "KRAKEN ENCRYPT UNIQUE KEY".</li> <li>DON'T USE THIRD PARTY, PUBLIC TOOLS/SOFTWARE TO DECRYPT YOUR FILES, THIS CAUSE DAMAGE YOUR FILES PERMANENTLY.</li> <li>DON'T ASK PEOPLE OR DATA RECOVERY CENTERS, THEY ARE MAY ADD EXTRA CHARGE.</li> </ul> <br> <p><b>Additional</b></p> <hr> <ul type="square"> <li>Project "KRAKEN CRYPTOR" doesn't damage any of your files, this action is reversible if you follow the instructions above.</li> <li>Also, our policy is obvious: "NO PAYMENT, NO DECRYPT".</li> </ul> </div> </div> </body> </html>

Signatures

  • Deletes itself 1 IoCs
  • Looks up external IP address via web service 7 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37a4514026f67eeebd5a8f6786a92e30.exe
    "C:\Users\Admin\AppData\Local\Temp\37a4514026f67eeebd5a8f6786a92e30.exe"
    1⤵
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\SysWOW64\tasklist.exe
      "tasklist" /V /FO CSV
      2⤵
      • Enumerates processes with tasklist
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2804
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping 127.0.0.1 -n 3 > NUL&&del /Q /F /S "C:\Users\Admin\AppData\Local\Temp\37a4514026f67eeebd5a8f6786a92e30.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2992
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 3
        3⤵
        • Runs ping.exe
        PID:1820

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

System Information Discovery

1
T1082

Process Discovery

1
T1057

Remote System Discovery

1
T1018

Replay Monitor

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Downloads

  • C:\PerfLogs\# How to Decrypt Files-VOVWQ.html
    Filesize

    9KB

    MD5

    a169d0811ae4f8ac4abf274e32bfce44

    SHA1

    e49e4694fad9837f33d84e7d90b991a997b13167

    SHA256

    436b638ab78cd7013d4b61bc10c754c2f9b34ef51a270bffc0c28566ebf67e0c

    SHA512

    77606d6a75eb68c3e7300bd3019c509349c6132746f0ab186618173a3600b97a9d1f543ee483324a0f0ca0cacd33d15c1135bd5d4a04a1379c8cae756c94785b

  • memory/2044-0-0x0000000074A51000-0x0000000074A52000-memory.dmp
    Filesize

    4KB

  • memory/2044-1-0x0000000074A50000-0x0000000074FFB000-memory.dmp
    Filesize

    5.7MB

  • memory/2044-2-0x0000000074A50000-0x0000000074FFB000-memory.dmp
    Filesize

    5.7MB

  • memory/2044-3-0x0000000074A50000-0x0000000074FFB000-memory.dmp
    Filesize

    5.7MB

  • memory/2044-4-0x0000000074A50000-0x0000000074FFB000-memory.dmp
    Filesize

    5.7MB

  • memory/2044-398-0x0000000074A50000-0x0000000074FFB000-memory.dmp
    Filesize

    5.7MB