Analysis

  • max time kernel
    164s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    11-02-2022 06:57

General

  • Target

    4d71b18d7c5a43c53a99923fdcfa05109d0f2a823c7f53ef4bd69e8ea47ae9a5.exe

  • Size

    54KB

  • MD5

    36492e061fd7788a5459548b25d6b005

  • SHA1

    6978176a9c7c4c8d6d5de30c906205d6425f15a5

  • SHA256

    4d71b18d7c5a43c53a99923fdcfa05109d0f2a823c7f53ef4bd69e8ea47ae9a5

  • SHA512

    9a51d46bb74132ad58206894403bdb9ba639bc894b888a1431040921278dd4bc63f3fd2648840c7e522397afb00f4320dc4d6a630d21012c7b1dd754c5dd506b

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 decrypt tool.</br> To get the decrypt tool 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). Send me this ID in your first email to me</p> We will give you free test for decrypt few files (NOT VALUE) and assign the price for decryption all files</p> After we send you instruction how to pay for decrypt tool and after payment you will receive a decrypt tool and instructions how to use it We can decrypt few files 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.

  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 21 IoCs
  • Drops file in Windows directory 1 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d71b18d7c5a43c53a99923fdcfa05109d0f2a823c7f53ef4bd69e8ea47ae9a5.exe
    "C:\Users\Admin\AppData\Local\Temp\4d71b18d7c5a43c53a99923fdcfa05109d0f2a823c7f53ef4bd69e8ea47ae9a5.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:2596
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3880
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:1776
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2236

Network

MITRE ATT&CK Enterprise v6

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Downloads