Overview

overview

10

Static

static

10

21bcb9c009...2f.exe

windows7_x64

10

21bcb9c009...2f.exe

windows10_x64

10

Analysis

  • max time kernel
    172s
  • max time network
    190s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 02:25

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General

  • Target

    21bcb9c0095424a179399379939f6ebdf1dfe202825c1ca5acdd25a8f751402f.exe

  • Size

    164KB

  • MD5

    490b5528b76c657fbadf8707056af2eb

  • SHA1

    510dbc8f41626d1dabc1467947e81de8478f9024

  • SHA256

    21bcb9c0095424a179399379939f6ebdf1dfe202825c1ca5acdd25a8f751402f

  • SHA512

    c845d5ef765462af7317e033d0c2267e26bcc7dd55fb5558be8f99286a9b86f22e1ae5c74b3606e96dcd6b8aebba39da2edd0b5092bdab3f7c6beae839c5c89a

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\o522f235g-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 o522f235g. 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/D7659BF41B099958 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/D7659BF41B099958 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: ux/ReZ9uaze3zHgf6bSmkPfsa4lpM2zCIQNjWEhkKC0ZstzyVCEdgQRfJayIZwSA qJWg9HP4Z7Dr2mtlDPQElKZnXfUl/QUGp/j/OJHGGV8aaz1XjizDQqSbi0JoVp84 WYPssjomya9A/g7pT5C/y8UGfxivHrgmezFDgLYxUP+JiTOBiTOvWo02qynkg2zj 30/q5q17wrIcJkNUMqtNYe1enjp/9+B2BcJnHBP7ZbOZ5vedSaWBsZi45j/u4F/s 2kpfgFGJOeYyoIrbdc8Qmke+CFTxkCJeUpNKwsl3FyMiF+K32YDtbnva+9VISbh2 EcKdXvvp7OYGqe8y4UQpEslIsflwdaWjhmEiWYfrk8Mz+jAM2Tw9kXZQ9QiRGrv6 z+k+UvImf4vbS3VE/6iGI13RELqPbJP2q5zZ50dXcqK/dzX97KmNXMtD+FeS9t7l aVRDtwi76xyq65G1i+Sblh4sPgoveABlbc10+v5G0oOlNndM3baF2523OdZMLVtM 3bJoPJqyegPdcYAjiqVxUHJV0K29a6D9NRJE5gbZORX7IE2OtdeUveZt1B4TfmXx ZfOeaidso/ljo0LeWYwFNRj/bYw4sUtO1bd+Zp80xt7bVtaBBo0i4+65n8dUIgh0 mY0XyHnWVYx2v4zspqEMjLJTrwukRhhFwwga+pznp2EmSIdTL6fzNsbBor4TTuvV h0pMOU2utzh8ZyuAvyulejbvgrg/NgGXUOsPEda7bwgygXP/jg0DMCXiUZix057v bUFXZVt8L4h5OQqcfpGWkTvpWmh5aCn+FEZXO6hRuAyNeCxV70NDDEijzhzkad/Q DHuRsRniof4qeuPOzVIm1VxUy0VwBgvOc74A/zX34/OBLpv9oTQfDCWaRSq/Qae/ TEl3Z/QSALaLKmd4j9croSOfrIXVuDneovTRO5jO5XPKmjkijzyjW7kW2pf1EmQ1 Nxi9U/4IWJSlo4m5VU5ZmctF8sAO2X1c2rsiv/3Zc8R9JqRaYwuDZsXp0K5HdAnK ww4SiGvA/K8GrRKFo6zF7R7VS7sBwk1T4Rzoy6La0X1lbQF7EMzQV8nF8MibuoIY 665loq+QfhWdQn0c8rsivSOf/WBwYZtS9hYPqMgqcP8zKkfrPWCN9bUECAdi1+Ld xQ8= Extension name: o522f235g ----------------------------------------------------------------------------------------- !!! 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/D7659BF41B099958

http://decryptor.top/D7659BF41B099958

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

    ransomwareryuk
  • Modifies extensions of user files 7 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 Program Files directory 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21bcb9c0095424a179399379939f6ebdf1dfe202825c1ca5acdd25a8f751402f.exe
    "C:\Users\Admin\AppData\Local\Temp\21bcb9c0095424a179399379939f6ebdf1dfe202825c1ca5acdd25a8f751402f.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2864
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:2884
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:936

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/2864-122-0x0000021DF20F0000-0x0000021DF2112000-memory.dmp

      Filesize

      136KB

      Download

    • memory/2864-126-0x0000021DF2C10000-0x0000021DF2C86000-memory.dmp

      Filesize

      472KB

      Download

    • memory/2864-127-0x0000021DF22C0000-0x0000021DF22C2000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2864-128-0x0000021DF22C3000-0x0000021DF22C5000-memory.dmp

      Filesize

      8KB

      Download