Overview

overview

10

Static

static

10

661059daec...83.exe

windows7_x64

10

661059daec...83.exe

windows10_x64

10

Analysis

  • max time kernel
    172s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 01:55

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General

  • Target

    661059daeca736f9019e16759fbc50941ad3eda1a4297a68e3ce75e687eff983.exe

  • Size

    166KB

  • MD5

    765575f3048b6b31682c0f04dc481ec5

  • SHA1

    fe364351ef90e676d6d5918a75257641454c1161

  • SHA256

    661059daeca736f9019e16759fbc50941ad3eda1a4297a68e3ce75e687eff983

  • SHA512

    5c5793cd2ba89951ba37d4637093390d77de5539d2038bc0effae337fce169974c616fbf6933df15459db96ac6b04378692b47198b21b6b5df0760d91527d3be

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\3t16w-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 3t16w. 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/2CF27A21AD1BCAAB 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/2CF27A21AD1BCAAB 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: OXbtTvv+HCXaeA/7mK/ai8H2N/1HPLNdIVERM3qQJoDQvMGU4PPhIPQqR+o3CZeX 3qwVrwNJWlQX1QVLKwtpllz6D3KIMEU4GSrFeFKxDwEqV4kKiifC6HSYDAED4ShQ qccCjVFHIbdCLen0uQ48ZQCZIAWAwdf+IsfzdX4i2drbLVR0L/Ls1MxlNG12uPMz mt5R4n61zSZ+LLN+Zx0cMj41OXosrYB3R9yhB5bYluJz3liQTEcfLMHt3chsVrus FtmIKHlJTB1URAawG9GTxMuA2dZZRsc98DcDs9up6B4EFp1fAT2TmTb6RL9vitcz 0YMIlrtwY6emgCjaKfAND5iMCAGEuPNQqL4Xj0mAznoF4+l1Sz3RZR5Y3HrQbUOx bL0VNBoLgdYU0kqKk1UapFMfaDowdQ9XCTeDv3JDykSgFypnzJVJFFma699PsGqc vpZau/2kOCDACnYcdCTmXmGxraaT4RU9Swbk5ZalvJBCl2q9qmjC9Nq+4AHRlLYP XxWRQ5EuNaDZ7oZ6X6atXPZq68U/przora9ODAQDdnAnDJ3ujUpM8r4xpw68mNHw D/uOfP1Yjf/tMnbWsFJxThPVL7V4d8+ayHrxuBK6gB0FDtm/gAJ1+eovEIV29G8v dGqF1YCuYkLL7qUEW+8BHagr/b7Q3SxHK0F0WZkhkVeh671yUEOtVRRoN1zFEFL0 ni83m0GOA905ITspVWJUn0UJ0dyZJnYILIIVlLVugF6CwzORtbLy+TBfHx/zQls6 ScUBoJYsHendk4ROIpsmRKWNI98kMR1jau4cRFd6NthLGnjuhSNz5bOCG0CSZ884 mUIq0kG0kO8s5YUKJ2NBLBgPuwoxti4nVOnDOjiDmII34VJTQM0MYGFBVRXpP9Hz Nektc0srpCJhcGQeocKeH9Pxo5rbJFzqIwL0TF2+rpT/aN+oIZVGZXQsWC/ebnnT sGYy6rvnFlqfJKRBZhCcZSQkV9U9cv5Qcqla59N8O/W6Qvr2pJwp3rhi6XFeloR8 jUmf4Hkm4PxNVJSvjOw54K5utsEGXJnCnangkbWZ6CbiBVhjF2tbQLFairF3EjWI 3Z/8ddv/Oxwu1Dyqa/4srE7ApLNBkkr/EaYmFmSq/Ze3K5KzY/5iRRggXuryZkHl AfPBkAaueHfZ7/YSy7k8+/khFqD1CibwE2OL+N5CJ+8GIXzhfcVA4x773rtZ9LbY VBpbhSZybBVX935ecDLKx8iNTRURiQWEMicy67GIwvpcMzfn5cbcAF0WuBqgd8I9 OtPuTkagb1fhnJGjCag= Extension name: 3t16w ----------------------------------------------------------------------------------------- !!! 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/2CF27A21AD1BCAAB

http://decryptor.cc/2CF27A21AD1BCAAB

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 24 IoCs

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

  • Drops file in Program Files directory 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\661059daeca736f9019e16759fbc50941ad3eda1a4297a68e3ce75e687eff983.exe
    "C:\Users\Admin\AppData\Local\Temp\661059daeca736f9019e16759fbc50941ad3eda1a4297a68e3ce75e687eff983.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3000
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4340
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:3900
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:644

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/4340-123-0x000001A3749B0000-0x000001A3749D2000-memory.dmp

      Filesize

      136KB

      Download

    • memory/4340-128-0x000001A374740000-0x000001A374742000-memory.dmp

      Filesize

      8KB

      Download

    • memory/4340-129-0x000001A374743000-0x000001A374745000-memory.dmp

      Filesize

      8KB

      Download

    • memory/4340-130-0x000001A376B50000-0x000001A376BC6000-memory.dmp

      Filesize

      472KB

      Download

    • memory/4340-141-0x000001A374746000-0x000001A374748000-memory.dmp

      Filesize

      8KB

      Download