Analysis

  • max time kernel
    140s
  • max time network
    171s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24/01/2022, 01:25

General

  • Target
    a389e24bf0af9bc81b8133a600a2b6c875d32aa0885964d0b9f3ac6db5fee762.exe
  • Size 160KB
  • Sample220124-bs993ahef5
  • SHA256 a389e24bf0af9bc81b8133a600a2b6c875d32aa0885964d0b9f3ac6db5fee762
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Path
  • C:\cboygp-readme.txt

  • sodinokibi

Ransom Note
  • ---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on you computer has expansion cboygp. 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/22009BB6831DADE4 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/22009BB6831DADE4 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: NHuHLZS5koUqhj0Gm79NBboymHIuUQmhpVtyBCZFEGj4r1Df2+BpP31an8lkZJbD uneNZXx66KfMGYzCY5GvVIWq3tIZ+tPmOEqWunMM7aK7BQrUa2vhDol39c1mBy/+ zfltGO/5+Pj0LIJh1AwdY2CBmcPPZla+CFlxp1Qndb8bmVnlt9KyHOJ9jg3ToIjr 97lb7sqY9ttXfq4wFpceAtrfJrCoHbCa8oYZjhQ9QEI4FpR4G2nK58RD+FxPnzPN z2xdBBFPJ5sGOxoNYO3FTP9xsoKE5g2yqXJsEN0PRSuGzDWnX8Zm2rvl59WxlJB5 yxy7h5iteLjZ6JrABjVm+NmxLqCjifc6WS3lUQUOQ1hjAvm8cbZ8+pe2GYIQ5gFl ipowFEYfUf/TFKUF5F0Lkp0BFCqiSSWknPwNHTDMs+DZMRmikPuivt9/vBXh4u1r iefntbKfoc/zJ5gUSaBD2R0VeMqFlztS7JbznvbYA1oLU52u/W/mpWkJCWCteYlL eKxlpiaTeitHI38oD0mMLLRePOcRRef/4FNcznZ8DUw50XjX9WoUwyPo4KFsLiq+ zKmSacp8VC4a9plbAZWAC7MxnBraIzCbwEXrwgGtVRE7vI9c4z8ME5+Y1F4Ihe/U tw34vRFLeJsSPgGSfJ4YVnBfht+UPYuLnawqukRzQT3bZSiICGInwQriQ4/5zCLh QBvNaG5XltFUGzNvhGpnPER58kp3crFCsu2V0ImbsCxjUZ5/xr6DpURRhzsl0ZCs npLwr3XnyW2eF5HKrbnqDRzPkMstcayxVWvi4Ox+cV9epyoM/Pr/pAiOwa9OLB+o Cgk93CJGaKBReaL7eYxkDxy2FGJHj7sno6O80OLioD/Tk1PWWi/r+YAnUI8T/mIp FNOKE+dgE6A2v1B6hxFgoCs4HcqkWDapzIm6FxjtAcVzb87nEBD8lVSsNOrzWvYH icgTTTGQeLjFod3IFiv0poZkWrSWzPVXdhpgzQikKvKDi6MTwr0o0Uxr6lCuPoxN tJhvftxvAcN7pFYAJWEhm8/vBBWgJ0/JyHTBxT09UTKhUdI1G1TqxjpdJ0gVeDmL U8W+uLtPXcyB6vyXTmKilDDCgBOB8dOJNq4wds9H6ICdd75apbL7lpLftr0ySP// z0A= Extension name: cboygp ----------------------------------------------------------------------------------------- !!! 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/22009BB6831DADE4

  • http://decryptor.top/22009BB6831DADE4

Signatures

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 8 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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 28 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a389e24bf0af9bc81b8133a600a2b6c875d32aa0885964d0b9f3ac6db5fee762.exe
    "C:\Users\Admin\AppData\Local\Temp\a389e24bf0af9bc81b8133a600a2b6c875d32aa0885964d0b9f3ac6db5fee762.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:472
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin.exe Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:672
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:816

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1452-54-0x0000000075D61000-0x0000000075D63000-memory.dmp