Analysis

  • max time kernel
    152s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 23:05

General

  • Target

    74e40db78ff482c904336c92e5702683.exe

  • Size

    92KB

  • MD5

    74e40db78ff482c904336c92e5702683

  • SHA1

    f658ff3be7916158ac27ded4a9e15586c794a7fc

  • SHA256

    42be9bd6089404ffe72b9f728a9e01902e87844215735e71e62207ea9939875a

  • SHA512

    7d73191a4294ab6a23ba405f760aba3ba04f9085b2a1565135b07446d402eec83e729c3620bd56c42e07fc568acadfa2d4076460396038affc71c98944d94a70

  • SSDEEP

    1536:Eu9ZnfCDXBTambyG5WzWwbBIRBxnbFswTWGKcl:EwCDxH9wbUhW1Y

Score
10/10

Malware Config

Extracted

Path

C:\PerfLogs\# How to Decrypt Files-CLHUM.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> pFLWkhdMxa5RgLX5zh9sQ9+6l+oHHsHBr5naGSqLEFWRdHkYtgrO6HhygIg5KfeH<br>AE5wAz2ecNdc6md19GEmJbPNvrj4EWxPfka6R7qhoUsspnHRK7/0TYmPO//QEfpw<br>rXo5p1cBcTObnIFeq8P1JbDkL8SJzntQIw8y2S5IPCjZw1+hXINIctOS3ZUM4azj<br>ABDS5cElQQiRsIZ7z+iJkSnHYN7iaVO+IjkeA7VNPWjrFL0W9ZFG0SvujxuESkKH<br>jf75MiSK7rzXKOcYWvIiAqqoAmAMW2uTCxrIeqPSKAil/Cn2bHcd9MGFXcMWluiu<br>84Xwi+BayMO/tO46aVo4sBPT2TJTqHJIbWXB7wOj70mkZJmgO+kZfH0fxv8TcEcO<br>9sfnleaYSwHFnjbR+aBRPVP3DNU13dg5QYXimiDDJDCJ7o3d3PjwieAoeKhTbuBu<br>Scfee+QxfaPQbc3m6koPSUNawW2XPENv5kQiRUYknxTeRAGiCyvKJrd2F2jz0Gjy<br>w4k0+S6selReL3hZ6SEbESVDsPTHfKDOn9nc9YnWITtuODzmCWiEQ8HCgoM1N/X5<br>vhiyjMVdm8HWtiYNgsEByXWa6EPDlBPIqs+amPxX1m+fIFMBc9agqX0/pXL5Hojv<br>i2/Ba8YJka1o+VvZVX3Mtcuu0Sg4OmT4sh2+ZGqsPXz5Nh/yOphp4ZTq8ourt1W4<br>EFujjlxe+EHoAGa81+hbl9ylCRHpiMEHr9OlpRreBZg= <br> -----END KRAKEN ENCRYPTED UNIQUE KEY----- </div> <br> Extension <div class="info"> .CLHUM </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 .CLHUM 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 (0.25 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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 2 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 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74e40db78ff482c904336c92e5702683.exe
    "C:\Users\Admin\AppData\Local\Temp\74e40db78ff482c904336c92e5702683.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Windows\SysWOW64\tasklist.exe
      "tasklist" /V /FO CSV
      2⤵
      • Enumerates processes with tasklist
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1664
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C cd C:\ProgramData\ && release.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4832
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKEY_CURRENT_USER\Software\Sysinternals\SDelete"
        3⤵
          PID:2404
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKEY_CURRENT_USER\Software\Sysinternals\SDelete" /v EulaAccepted /t REG_DWORD /d 1 /f
          3⤵
            PID:4468
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c C:\ProgramData\sdelete.exe -c -z C:
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4396
            • C:\ProgramData\sdelete.exe
              C:\ProgramData\sdelete.exe -c -z C:
              4⤵
              • Executes dropped EXE
              PID:760
        • 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\74e40db78ff482c904336c92e5702683.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4860
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1 -n 3
            3⤵
            • Runs ping.exe
            PID:3056
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4272 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4964

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Process Discovery

        1
        T1057

        Remote System Discovery

        1
        T1018

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          9KB

          MD5

          44704c92de61e14ff93cbc11f72f2502

          SHA1

          e7ffac1add7df06d1972f393e1ff956d64dbd088

          SHA256

          e328e410a2ed2393cd62ad7708e9a149651501700e166141b31d9fa673cd7e95

          SHA512

          4d27cf11cda1c784311af1769252f7d0e702d1b7a76b6f94d035cab16cc038f8118e57bef84d53139e02ed5fb29319cd891a93e1316f28c0ac41f0d683253667

        • C:\ProgramData\release.bat
          Filesize

          875B

          MD5

          ed51564efba7197a56ad8d5fb508ac12

          SHA1

          6b79b10c6aab091fa722373ed6cc533f24febe79

          SHA256

          de8036a2336605847f263fbd7db3204a63469ab9e96d5fcd167898ca0d14df69

          SHA512

          eafe939d2b8a67f21f2672deb8667526e46d57fe74331dcba726acc573ebf9ed3fcfd79dff01457cdf9fdf5eb171da51d61e430b84f417eabd5ba12dbecd0fbb

        • C:\ProgramData\sdelete.exe
          Filesize

          218KB

          MD5

          6a4e049d8c497d350a7bd54dfff99808

          SHA1

          7f1d32424c961542ae172c5b8c1611291c30fc4f

          SHA256

          59e5ae1e99c6a4ccc01e8abdc2534210ec5faa945754a89524b06381da8c20a1

          SHA512

          41169089fa67e1a0ff1360dc5428b89dcee0d642204ddb7dac80d6cf859caae3c2b14fa89ce72072fb780c0a93f53eb0ff9414a8e88b1d783bfa75c9c4ea353d

        • memory/2432-9-0x00000000749C2000-0x00000000749C3000-memory.dmp
          Filesize

          4KB

        • memory/2432-12-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-5-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-6-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-7-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-8-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-10-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-0-0x00000000749C2000-0x00000000749C3000-memory.dmp
          Filesize

          4KB

        • memory/2432-11-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-4-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-13-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-14-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-15-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-16-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-17-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-3-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-96-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-2-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-1-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB

        • memory/2432-375-0x00000000749C0000-0x0000000074F71000-memory.dmp
          Filesize

          5.7MB