Analysis

  • max time kernel
    136s
  • max time network
    175s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 01:26

General

  • Target

    a096e7ed6b4ac331fb64a81cce1ae13e9c8c64a442b28c1556f7015f3b0ed4f4.exe

  • Size

    164KB

  • MD5

    5498c2ea6c3d26c94247715deb4c09a0

  • SHA1

    c8328ca80fb0009fbdf92fd52a110e604db267b9

  • SHA256

    a096e7ed6b4ac331fb64a81cce1ae13e9c8c64a442b28c1556f7015f3b0ed4f4

  • SHA512

    73e65253cb754e7469797e355163444035ef2f85ae3953223e83b14f5070de6da17029aa2728c0ee1bd007df7722b338a39ee3d71b73888f4ed52a111c208159

Score
10/10

Malware Config

Extracted

Path

C:\e4u171-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 e4u171. 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/320FD54529F1B0F7 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/320FD54529F1B0F7 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: ze3TfbnJQ4tuhBrhg9ClpeqqCDXyBqB4ugl2LBU38GvEsyT7fZZrldZaOvWWJ/b/ g1bMa1PF6MXj5Cd/bUOn76VLl4hkUFNaFvzRFEgh+pb/MCvlDo1zitpjMz9Vf1tF lIGQ/q+cyMpXwrhpyhYMdZqEMw/nvcpFW5to0pcXjsJTWCxVlbgpKXY+i8iBlUfg CvYk9FT5+H5TBKL2BobZxKyKw3YT3OGOX6FFAL8NbZAeVEb63epIq7BMMhMjtPIj oWmHr//2Ig5JMhxTXp2sCBoRa5l9QrxkK/e2GQb8WPPwL6w/1jlzUf4qKPTsIt1+ c5ncS5HFdOp4CrA3/Wd7kljq8vjL4j/HvsGrxd2CTewGvdwOXxgd2gXIEuGs6SVJ RQUtycXn8B3szreAp63unN0huZAiQXXx7DCx+UcMZrYhz7ZgycoSgwqisxwrYV5e OaOIo92g/LuIcteQhfcQ0EzSWIY52/AOKPosI+9kPbfRLHUTKCNdMNvae73CCgdy QfYM+0wAPzVzr/T7rEmgARgzz/qD5Wwmz/DmCvHpOq1AKQHA0aePbjb+O+d+7FH/ 3mNFN1cLjPBJbuKS6WrfNiCzlzaBWmutMZ7BvtlbjYeZSnm4PrHSDAnrnRVY+2j/ 5IlJp461nJ4mHUwQzTHYkdUDShFFyUD4ew/n7kRY4SIaUkNdXpfGK2peZJFsBHht GAHIDixzojtrBYTTTgpsa+cnAaa5nSl4dIGA3jKptNfIkNkibyMHZwyu8J51Ufwj abrIj7Di0YaRCsgTrfkYPj1Ph5UgDKJGMqD+gW87RgyfYV6UWntdaCQt0iVugxPu 9+lrU+MM4vqP2CW//c9e/Jcrl2r9+17azCn/h/qIH2bDfGorh+pgDc5P65s+BcId KuJzpmwAm/6I2fczsus8dNsIlAxzf8mM01VMlK5bO7+r+kHuNHix7/RysLALMzSj U7gIKTymyyA4Wtb8pQXDAekGN9AnKNA9nqdOtv8isGAZXisdeEf6XkVG5Qjkj0qA I1OrpJZWZ/OZS/+3/5SDVf6rTA2Hs7qWx1steX8VVaLCXfkiWfe8C3V8Bg5Jm7Q/ VfUFyIPOoo75KV58vJue6k4TzQLmZ0tua7hyAvB63UnVXPDv04QPv2MEPyFFhY9P Extension name: e4u171 ----------------------------------------------------------------------------------------- !!! 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/320FD54529F1B0F7

http://decryptor.top/320FD54529F1B0F7

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 16 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops desktop.ini file(s) 28 IoCs
  • 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
  • Drops file in Program Files directory 39 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 2 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\a096e7ed6b4ac331fb64a81cce1ae13e9c8c64a442b28c1556f7015f3b0ed4f4.exe
    "C:\Users\Admin\AppData\Local\Temp\a096e7ed6b4ac331fb64a81cce1ae13e9c8c64a442b28c1556f7015f3b0ed4f4.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:944
    • 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:1304
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin.exe Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:1812
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:428
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1784

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    File Deletion

    2
    T1107

    Modify Registry

    2
    T1112

    Install Root Certificate

    1
    T1130

    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

    • memory/944-54-0x0000000076151000-0x0000000076153000-memory.dmp
      Filesize

      8KB