Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    03-05-2021 20:13

General

  • Target

    sample.dll

  • Size

    813KB

  • MD5

    040818b1b3c9b1bf8245f5bcb4eebbbc

  • SHA1

    c0f569fc22cb5dd8e02e44f85168b4b72a6669c3

  • SHA256

    0496ca57e387b10dfdac809de8a4e039f68e8d66535d5d19ec76d39f7d0a4402

  • SHA512

    bf4dcfb3c7cac05776560e751414a8babfa25fb8703768d0264133d4964f841055cfcab9f30d9854e422642855b4452b9fbf431889cb70a37ecbca7564f638c1

Malware Config

Extracted

Path

C:\069d2-readme.txt

Family

sodinokibi

Ransom Note
---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your system has extension 069d2. 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. [+] 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/A8C5CA18C6C64F7F 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://decoder.re/A8C5CA18C6C64F7F 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: TfbF//Qh+5CeDkZX94iZGMMvvlu/dChxrHVUMlLWRYwkMMEHmxTwtUxIDfR0/1QG d42N/jc5RksmHXUrt8/V/acZEH9B3NkzivNduarCI5CaaQLyHSBGKe+MSDztwwpn v8A0j6QLr8C5UK3lERHceToUu+dFp6ueinmAcD57R+x1kAjXJQ+2xyA91lITaJjx 2u/M981kPKahtprTXOCxhZdgZDMYTouETLmf2iK7SCrF0fIDk31lokge+z75YVi2 T2FOPACMX8JaKzlRZL8WmbPnP4q3qy6yu2z2rKWakGtdc667hoDQmbOoFphkk0cw 6jtRjv+dPXfeNgOGMgHkmGIfRgQ1aWeG6MukOhv8hEsfm6/h8u4ML0BfoIv/0Iyl VIlaPyQjcMG4iiPb7xjwb0FuP+xMqi6ijRk3abZnO6rR/TCQ0HN1ahz84QCAxQq6 jhEBkrmQ8W7mqQhsqy2jynxF8tL2KfCz57kEpc4EP3ZiaBreUv5dKJp4dYRozcFo J3S7Pwki9aedW7upG/qhI2ql7h2A8sUHqLstYlI6QgvrZ3kj3rSQRIjRu+j/W9Tk r9/abCk99HQemfXcGO4sjaBD2Mlt5teR7C+61FYjgbbO0PBvGBADaB+EUN9sf0Ng MNIG2XBdZJS4fs/wKypuabnn90r/hCO137DLgg+3jDtozcmLbDPLxGpFUhVxgoO3 mIfhd3YDH5zyiIGl/P64/ryIFSj1jVZilEsGHs9/FHJvNu0j3jNPPpnJQQdHvxL0 mnIbu54F04kQuaYMqQsqwANNQgmzYRQx8JJ/MYyx09oL0wh/ROSeSJCme/b1udgm hS+E8i2RPpKSuZCeH5gqvVJ0V/zjK19I+ugMAxlaEub26cBuT3a5jD8hTx2C+m4R UcmtBqr2hFcNAIdAz1qyeIJOzNJ1I2DdrzVxdMyYN6y0Vselo28KYNu1n6GQb6P8 82rdxA7KRAISlS5AN6eGM/vQUI6jebsuIUVcjUpLsG7bzf6mT2LH2Q/Mc5wRY79k juQAbFDqXU/JsO7PAtatZJWoCNHSWOP52j+IXIkImHl1oDEzEqZULynswtmC1+Ja vd3VDBKx5HMfw14XsAP4VTIKN3ToOB+f8Irm8BpP7H6KACXDAkwf9ELmmbgx9u41 doi029qnJaYy51O4SbljUrP60SThFEbKutoQ5SCyqKEFFGJQ2W6kEsnipl8UhSEu jc6wMmwG0AAn5UJ3cWrhwgWy2jhjSe0iBjDSJGssMWnXf3RhE+WeFWYsBx7F4WlL RP+LZw== ----------------------------------------------------------------------------------------- !!! 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

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/A8C5CA18C6C64F7F

http://decoder.re/A8C5CA18C6C64F7F

Signatures

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • Blocklisted process makes network request 64 IoCs
  • Modifies extensions of user files 14 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 25 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 35 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\sample.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:836
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\sample.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Modifies extensions of user files
      • Enumerates connected drives
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1324
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:300
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1820

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1324-114-0x0000000000000000-mapping.dmp
    • memory/1324-115-0x0000000004890000-0x00000000048B1000-memory.dmp
      Filesize

      132KB