Analysis

  • max time kernel
    135s
  • max time network
    176s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 02:09

General

  • Target

    4967be7b7244b915b4ac0685327741d1de02aa745a9c5017d30be39396356b19.exe

  • Size

    115KB

  • MD5

    68f898fbd1f714cedf6e1c1259848f61

  • SHA1

    baa9fff6de84047a3fe0e3bc7ddb2921590386af

  • SHA256

    4967be7b7244b915b4ac0685327741d1de02aa745a9c5017d30be39396356b19

  • SHA512

    759f2caa5c559db55902f98319ecb3f696b63f102cf259ebee2da76ef2216563d1d4af8358bb4eb49d7fad66220514dd1f94f7c4904ccc45d0b0d9db98e42e7d

Score
10/10

Malware Config

Extracted

Path

C:\3nyt45ek2-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 3nyt45ek2. 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/3BCCAF94A9623AAD 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/3BCCAF94A9623AAD 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: UwTnd4OLFHebhPUR0wMMRprX3KeKriPIpuc6KZkmqVAcRKgzwdfVy0suwjnGxxZa F6poTZu3CON4Cj2n2OQquT3dB+DN64G2LJ7cCOEnZYaYc/EN7A6nBBLbC293UhgY vsfc5506S52u5x6IW0gCudVL76R74VSrY/VeMbiJDWZnwuUu0EEr6qX0KczQsTXL Ta+1Mmz17AutrQRzDnX4yZPbaDhfbm0Vt43Ub2Kipe2MHvKbUXpzFlbdxr2pPu+l LyQ/fDdHPNrnY9+5w85wQkwIfp9G6+S2iNVXPohrgBiprB/zaRNNDY4yi6BkPCLs mnnpz08j9i/q/JJzZ/UH2EzvsNBrpH9mCKru0EguXLfft8Hpxq/IoGCOcVOQNd+L x51x3Erks5AoTi3vY3Y0iOeWDzLUjn9hxFQqywM4MeU9/M9mEFJpZjSGxafKPQPU q/stEZydFuKkduUqS8b5t+DDgnEtej/EC6ScslJbK4kWKrJ7BgStlWImzJHVf20Q PWm02VwwKnIsRwsJduHnMrDtr4yJGrBvwKd3gLZmOcAV0tsK827DohVXCzQQLlKt //LxwuljOe1U3WSMI85FHgeBGtBPq83GjLRu3w1a6pQfMR5kw3GilVztrUmr+0y4 ryKS3a371gFcuoUKt7ODFM3Sdczp4vRN8/nrvSFTS1OzKh8SdguPSr0L/q/ufss5 2KxI52y0bPr049OHGcRKhy4qjmgJ/B/Dbz5XSuECtSJKgMFiNmtkPG8x/6Xr/n9o 7at8++94+xeKNrSpdv1n2He2ksQODg1gT411kYFZKgqOTTemJTCA/BhTMHGDlJNz YwlOEIXfo2wubFI20E3oFUvDOt6rtfhEfbEmY3K+benMuDYRobwHVGnGWMQNC/SY Xu1Tn65cXgfbTb8BVw3S/rE/o+JnJuABU1C2NTH+Rezl1eLK9qj95NB6EQoYSYtF 24SxsnZnHVR0ms/fLPHqf6+Wp8ZoJULgKdpO7TI5t+ElWEiboFgqqBC5jSikOsVv RVSDE+5VFyAV4LsgZuQ+rPGwhHaq8jUkNCPytGFPkVaGYOcjd5BjbXZWiSt+Kuk3 hwwEgp/UiFposnYAyrMUW419OBJk3hILAlVbViu2bxgBIQFFj+qoy7x/JQhtOgoX ucO1/XeZfWT6SvPheW3HtccIqdLyIKhwWuCClyupAaDsg/kt/uCTgTzPWW9WuX7u ga3w0UEiNweOJWnY70wKJloHgZblxL7SR6mZNgncUxcbDWoIvrNUTcGkCCJ09Nu5 oyJ5GZr1qwCkKy8c2v6wwAt+vah+WnVjO8SPYEys Extension name: 3nyt45ek2 ----------------------------------------------------------------------------------------- !!! 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/3BCCAF94A9623AAD

http://decryptor.cc/3BCCAF94A9623AAD

https://filehippo.com/download_tor_browser_for_windows/

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

  • Modifies extensions of user files 6 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Enumerates connected drives 3 TTPs 25 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4967be7b7244b915b4ac0685327741d1de02aa745a9c5017d30be39396356b19.exe
    "C:\Users\Admin\AppData\Local\Temp\4967be7b7244b915b4ac0685327741d1de02aa745a9c5017d30be39396356b19.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1776

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1776-54-0x0000000076C61000-0x0000000076C63000-memory.dmp

    Filesize

    8KB