Analysis

  • max time kernel
    174s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    01-02-2022 15:24

General

  • Target

    e2148660af56e9fde27e26ae3db205ca2d68ef1caf968e21f498fa94d8b56ef9.exe

  • Size

    669KB

  • MD5

    f3519df44f546606b256d13a209675b5

  • SHA1

    e386497b7005b133226ecb7f786943f6e77641d2

  • SHA256

    e2148660af56e9fde27e26ae3db205ca2d68ef1caf968e21f498fa94d8b56ef9

  • SHA512

    d514809c2faaee6086713651f32d19b923275dd822d43dac4e8a1d787230342ba13c31c32080e8d5b4c0a21f456d41e75a7b07120775e305ebc17d43564c5d76

Malware Config

Extracted

Path

C:\HOW_TO_RECOVER_DATA.html

Ransom Note
<html> <style type="text/css"> body { background-color: #f5f5f5; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ display: block; margin: auto; } .tabs1 .head{ text-align: center; float: top; padding: 0px; text-transform: uppercase; font-weight: normal; display: block; background: #81bef7; color: #DF0101; font-size: 30px; } .tabs1 .identi { font-size: 10px; text-align: center; float: top; padding: 15px; display: block; background: #81bef7; color: #DFDFDF; } .tabs .content { background: #f5f5f5; /*text-align: center;*/ color: #000000; padding: 25px 15px; font-size: 15px; font-weight: 400; line-height: 20px; } .tabs .content a { color: #df0130; font-size: 23px; font-style: italic; text-decoration: none; line-height: 35px; } .tabs .content .text{ padding: 25px; line-height: 1.2; } </style> <body> <div class="tabs1"> <div class="head" ><b>Your personal ID:</b></div> <div class="identi"> <span style="width:1000px; color: #ffffff; font-size: 10px;">5A871C3A4A06D23FE3477E1D26A0617C2E3092B213AFAF9B32396C0E4C84AEB246854778E285C27780A2425BCB7A34DF11E005D58E6912960132E5CEE21E8353<br>79E35C6C62FEFECBE59F8C69EF65766B7A91C0A057DEFFCC20F3DEF6F4E12BD901E67E379628A92F1E2D594EEE7CA50FC52A6B886EEB0EE3732F3CC41635<br>D3915F28DAFFE9662A208C6AA4D1766292AE381A1DD85A9BCDA0C3F1E6AA48DFF4F162C7B33CD6E36FC9B1654D9BFA1AE2967A6E496103D075A163C6AF43<br>51C4BE73D2D905CB27523ADC406434A7D6D1AC4BF7D0EC66C4A951590B3895D898690BA149C3EC0C8F2E6C2C85F785341DE7DE8859A99111566A78EBC0F1<br>5178222E44204422FD8E61C00168EE773AC8D6A5FC6ABF6349978D1324513BB5F4633C521C14AD2527FD79074AABF417BEC353825F79E6F6CE1381A1AE03<br>40EF0DE62AF8D778A056AF229236ADB4DB20F90668D361988E36CBB4AD3D4E06DF023EE7A4688FD3C536DBB08F96A1D6C8FAA3180E66D7F1FCD01844EC18<br>5947124788F4FDA4FA8E90CD95BB0A9B5923BEA88A0B2BE107921BC9F65D4D68F4336C9811F938901F0E7212077851117D927A5D5393EB1A548CAD3047A0<br>3A53681869B7D9BCC12D262232CCDEF3EDEA7810665CE7CDD2703F877517B2515029E15CF5AB0F000946AB6DA95AC337F45034744CC1BD5E7D45B19841AB<br>8F225A068E689452D33E597A6985</span> <br> <!-- !!! dont changing this !!! --> </div> </div> <!-- --> <div class="tabs"> <!--tab--> <div class="tab"> <div id="tab-content1" class="content"> <div class="text"> <!--text data --> <b>/!\ YOUR COMPANY NETWORK HAS BEEN PENETRATED /!\</b><br> <b>ALL YOUR IMPORTANT FILES HAVE BEEN ENCRYPTED!</b><br><br> YOUR FILES ARE SAFE! JUST MODIFIED ONLY. (RSA+AES) <br><br> ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE<br> WILL PERMENANTLY DESTROY YOUR FILE.<br> DO NOT MODIFY ENCRYPTED FILES. DO NOT RENAME ENCRYPTED FILES.<br><br> NO SOFTWARE AVAILABLE ON INTERNET CAN HELP YOU. WE ONLY HAVE<br> SOLUTION TO YOUR PROBLEM.<br><br> WE GATHERED HIGHLY CONFIDENTIAL/PERSORNAL DATA. THESE DATA<br> ARE CURRENTLY STORED ON A PRIVATE SERVER. THIS SERVER WILL BE<br> IMMEDIATELY DESTROYED AFTER YOUR PAYMENT. WE ONLY SEEK MONEY<br> AND DO NOT WANT TO DAMAGE YOUR REPUTATION. IF YOU DECIDE TO<br> NOT PAY, WE WILL RELEASE THIS DATA TO PUBLIC OR RE-SELLER.<br><br> YOU WILL CAN SEND US 2-3 NON-IMPORTANT FILES AND WE WILL<br> DECRYPT IT FOR FREE TO PROVE WE ARE ABLE TO GIVE YOUR FILES<br> BACK.<br><br> <!--text data --> <hr> <b>CONTACT US FOR PRICE (BITCOIN) AND GET DECRYPTION SOFTWARE.</b><br><br> <a href="mailto:[email protected]">[email protected]</a><br> <a href="mailto:[email protected] ? ">[email protected]</a> <hr> </div> <div class="text"> MAKE CONTACT AS SOON AS POSSIBLE. YOUR DECRYPTION KEY IS ONLY STORED <br> TEMPORARLY. IF YOU DON'T CONTACT US WITHIN 72 HOURS, PRICE WILL BE HIGHER. </div> </div> </div> <!--tab--> <!--text data --> </div> </div> <!--tab--> </div> </div> </body> </html>
Emails

href="mailto:[email protected]">[email protected]</a><br>

href="mailto:[email protected]

">[email protected]</a>

Signatures

  • MedusaLocker

    Ransomware with several variants first seen in September 2019.

  • MedusaLocker Payload 2 IoCs
  • UAC bypass 3 TTPs
  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e2148660af56e9fde27e26ae3db205ca2d68ef1caf968e21f498fa94d8b56ef9.exe
    "C:\Users\Admin\AppData\Local\Temp\e2148660af56e9fde27e26ae3db205ca2d68ef1caf968e21f498fa94d8b56ef9.exe"
    1⤵
    • Checks whether UAC is enabled
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3228
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3632
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1008
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3100
  • C:\Users\Admin\AppData\Roaming\svhost.exe
    C:\Users\Admin\AppData\Roaming\svhost.exe
    1⤵
    • Executes dropped EXE
    PID:4016

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\svhost.exe

    MD5

    f3519df44f546606b256d13a209675b5

    SHA1

    e386497b7005b133226ecb7f786943f6e77641d2

    SHA256

    e2148660af56e9fde27e26ae3db205ca2d68ef1caf968e21f498fa94d8b56ef9

    SHA512

    d514809c2faaee6086713651f32d19b923275dd822d43dac4e8a1d787230342ba13c31c32080e8d5b4c0a21f456d41e75a7b07120775e305ebc17d43564c5d76

  • C:\Users\Admin\AppData\Roaming\svhost.exe

    MD5

    f3519df44f546606b256d13a209675b5

    SHA1

    e386497b7005b133226ecb7f786943f6e77641d2

    SHA256

    e2148660af56e9fde27e26ae3db205ca2d68ef1caf968e21f498fa94d8b56ef9

    SHA512

    d514809c2faaee6086713651f32d19b923275dd822d43dac4e8a1d787230342ba13c31c32080e8d5b4c0a21f456d41e75a7b07120775e305ebc17d43564c5d76