Windows 7 deprecation

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Analysis

  • max time kernel
    159s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • 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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 27 IoCs
  • Drops file in Program Files directory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d71b18d7c5a43c53a99923fdcfa05109d0f2a823c7f53ef4bd69e8ea47ae9a5.exe
    "C:\Users\Admin\AppData\Local\Temp\4d71b18d7c5a43c53a99923fdcfa05109d0f2a823c7f53ef4bd69e8ea47ae9a5.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:1256

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1256-54-0x0000000076C61000-0x0000000076C63000-memory.dmp

    Filesize

    8KB