Analysis

  • max time kernel
    163s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    11-02-2022 06:37

General

  • Target

    b208859e1264bfaacca332987dba22afb2acb1e8a1eec7b5e9452fe19ce26547.exe

  • Size

    31KB

  • MD5

    45d0987efc818de928443cc4ffd83553

  • SHA1

    00592cb9953a89c401b0c6f846475043b1785989

  • SHA256

    b208859e1264bfaacca332987dba22afb2acb1e8a1eec7b5e9452fe19ce26547

  • SHA512

    11e4d3cc9aaf52fe8c62fa62f8aa277409ccc58cef9618128077746e50174f738998a08fd7b9fd8e313e56bb28ae3ed42d0ce5810f2ba259463cf235de9065c1

Malware Config

Extracted

Path

C:\how_to_back_files.html

Ransom Note
<html> <style type="text/css"> body { background-color: #404040; } { margin: 0; padding: 0; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ width: 800px; display: block; margin: auto; position: relative; } .tabs1 .head{ text-align: center; float: top; text-transform: uppercase; font-weight: normal; display: block; padding: 5px; color: #FF0000; background: #303030; } .tabs1 .identi { margin-left: 0px; line-height: 13px; font-size: 13px; text-align: center; float: top; display: block; padding: 15px; background: #303030; color: #DFDFDF; } /*---*/ .tabs{ width: 800px; display: block; margin: auto; position: relative; } .tabs .tab{ float: left; display: block; } .tabs .tab>input[type="radio"] { position: absolute; top: -9999px; left: -9999px; } .tabs .tab>label { display: block; padding: 6px 21px; font-size: 18x; text-transform: uppercase; cursor: pointer; position: relative; color: #FFF; background: #4A83FD; } .tabs .content { z-index: 0;/* or display: none; */ overflow: hidden; width: 800px; /*padding: 25px;*/ position: absolute; top: 32px; left: 0; background: #303030; color: #DFDFDF; opacity:0; transition: opacity 400ms ease-out; } .tabs .content .text{ width: 700px; padding: 25px; } .tabs>.tab>[id^="tab"]:checked + label { top:0; background: #303030; color: #F5F5F5; } .tabs>.tab>[id^="tab"]:checked ~ [id^="tab-content"] { z-index: 1;/* or display: block; */ opacity: 1; transition: opacity 400ms ease-out; } </style> <head> <meta charset="utf-8"> <title>HOW TO DECRYPT YOUR FILES</title> </head> <body> <div class="tabs1"> <div class="head" ><h3>Your personal ID</h3></div> <div class="identi"> <pre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p> </pre><!-- !!! dont changing this !!! --> </div> </div> <!-- --> <div class="tabs"> <!--tab--> <div class="tab"> <input type="radio" name="tabs" checked="checked" id="tab1" /> <label for="tab1">English</label> <div id="tab-content1" class="content"> <h1>&#9763; Your files are encrypted! &#9763;</h1> <hr/> <h3> &#11015 To decrypt, follow the instructions below. &#11015 </h3> <br/> <div class="text"> <!--text data --> To recover data you need decryptor.</br> To get the decryptor you should:</br> <p>Send 1 crypted test image or text file or document to <span> <font color="FF0000"> [email protected] </font></span></br> (Or alternate mail <font color="FF0000"> [email protected] </font>)<p> In the letter include your personal ID (look at the beginning of this document).</p> We will give you the decrypted file and assign the price for decryption all files</p> After we send you instruction how to pay for decrypt and after payment you will receive a decryptor and instructions We can decrypt one file in quality the evidence that we have the decoder.</br> <hr color=red> <center><p style="color:#FF0000">MOST IMPORTANT!!!</p></center> <center><p style="color:#FF0000"> Do not contact other services that promise to decrypt your files, this is fraud on their part! They will buy a decoder from us, and you will pay more for his services. No one, except [email protected], will decrypt your files.</p></center> <hr color=red> <ul> <li>Only [email protected] can decrypt your files</li> <li>Do not trust anyone besides [email protected]</li> <li>Antivirus programs can delete this document and you can not contact us later.</li> <li>Attempts to self-decrypting files will result in the loss of your data</li> <li>Decoders other users are not compatible with your data, because each user's unique encryption key</li> </ul> <!--text data --> </div> </div> </div> <!--tab--> </ul> <!--text data --> </div> </div> <!--tab--> </div> </div> </body> </html>

Signatures

  • GlobeImposter

    GlobeImposter is a ransomware first seen in 2017.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 9 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b208859e1264bfaacca332987dba22afb2acb1e8a1eec7b5e9452fe19ce26547.exe
    "C:\Users\Admin\AppData\Local\Temp\b208859e1264bfaacca332987dba22afb2acb1e8a1eec7b5e9452fe19ce26547.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Suspicious behavior: EnumeratesProcesses
    PID:3864
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:520
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 408 -p 520 -ip 520
    1⤵
      PID:3364

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads