Analysis

  • max time kernel
    147s
  • max time network
    156s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 01:02

General

  • Target

    cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe

  • Size

    207KB

  • MD5

    c0fecdafb51361897b96db9e291d97bc

  • SHA1

    14a565d9ec909f8fed5678dd2c4b2e3ea51e7800

  • SHA256

    cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548

  • SHA512

    0a4a9819f9373e1c566fdad74ad9c55dc3e2ba31030b31cb25ac21c9fb4432093a636773ac26c11ee313f2ba7af61872f29c4716c9e66c4d61767912a65aef3c

Score
10/10

Malware Config

Extracted

Path

C:\f53ybisi1-readme.txt

Family

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 f53ybisi1. 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/F3B75765AD826F92 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/F3B75765AD826F92 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: TF/bSfZ+CQNNdcOZ0t2rhK7cjeRsMjVxmM5XHSLTVqu3JsSBkWA7t4ghC+gtBAc1 oW8XTWdAq6wMLHs41swW7rJTMuRyRGaAXqXpE6HgW9v+d0SKimYy6jVOgzkKVYTM WspJFwq0mXqoPNwQEtuH51cZ8OERTt5j84kJau6pI6PSTHTS7lbyglWQMqqouXtO 54uKthP+kagMCCMQmB+2MOsv/gVShTxkSBh+sFwAidCUJNMk3Rmnt1x7wIacjf1n vv9of/Rb1gmJ8j5qht4XVqOqYhgnmS5F4MaifAY3Oxo7mLonn1C7WNhVMzmuh4ak C08qNztt9aCUy7Brr3bcfHhwcCRTlPGwpJRSjwwqTKTSNYDMDNXYDGLdrCxvtwju m0km5CerX3ru8q5zn5XJBDp/AG7XCKp2WUhr0VZaxE5ZqwenC61yWJWhzHPIXiNr Gtwk94cObMJDbzwsIjv4kwLcIqCNfVrRY+gFTu1KPMRtxXwDfUZEFxrtEuEhbJY8 Hf4h39fJ3jRvb6Rv5NiaSyW7WAAGXk7CNnb5N2le6ecY91a7SJhvxq8d/0R8xGv0 C61dPX7KHEtMWMq1eQlqkHWSzvW+sNXrklUMr5ficbumZ87BK4pKzbPDh1gomUTE /5sVmZpuhc+Qm8U405Lm/84Df+VdLAsyad1W3fBuor20NvJ5ADrNJUCs7CNGHUYg U9OiSSq/vVQGRpv4FA95WaY3Xlm5ZD5hcRZDnqBQuFr8DTnl7Ud//kj4MN1xXCLd CXhz+lLYI1HPwUKcmmLMBUCG1PhxlGyxcMfJ6ayxEeDSOTGZzZu7cBlYgNIWmSVY 90jAWDo4ZXatwPGYJr6NOOkjp0DoRVS501rpiDI/6D98v5eWXZb7xhE3Ez4KJCHb vyQxEjYqkjmjj0e+Tzz2trQll/eLK+5hcrCH8OcLpmVSDS5JVOn5Ecx+VauR6IXr YiJA6mt/myxz0QHqokB5vGEX9q/AFgCnq8XaJX35d5JiTNubvXT8Xt9u6oT+jTbw /IERCQBLz+HG1h3u+0r29GL50KwZqKRBJS5iSqjIr491ZZPBoonE2i7tF3dG5+0Z xb/xX3jWP+4vdq8t+1+q0a4FOEBUUC5ivFhSB8B39Lf9he54Z+6Yvckqo1z8lg== Extension name: f53ybisi1 ----------------------------------------------------------------------------------------- !!! 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/F3B75765AD826F92

http://decryptor.top/F3B75765AD826F92

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 4 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops desktop.ini file(s) 26 IoCs
  • 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 19 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe
    "C:\Users\Admin\AppData\Local\Temp\cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2200
    • 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:1432
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin.exe Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:388
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:1880
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:980

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    File Deletion

    2
    T1107

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    2
    T1082

    Impact

    Inhibit System Recovery

    2
    T1490

    Defacement

    1
    T1491

    Replay Monitor

    Loading Replay Monitor...

    Downloads