Analysis

  • max time kernel
    173s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    11-02-2022 06:39

General

  • Target

    aa032088d71e8c64b6644af075a6ec6f43498a09eb916550a33f5a44351c1da2.exe

  • Size

    55KB

  • MD5

    daa719630148a5389a032f4f86c3b9a3

  • SHA1

    b5dc1997ed75f3e2749baec57a2ea8c525474351

  • SHA256

    aa032088d71e8c64b6644af075a6ec6f43498a09eb916550a33f5a44351c1da2

  • SHA512

    689d23c208813ea35866db3c8de543eae52e6a2e968dfd139e4ca1b5021a3cc2ed1ba3b44e65661bf2e575abe60b1e364f566b68ba92320220b8574e6a6ec7c2

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) 5 IoCs
  • Drops file in Windows directory 1 IoCs
  • Checks processor information in registry 2 TTPs 2 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\aa032088d71e8c64b6644af075a6ec6f43498a09eb916550a33f5a44351c1da2.exe
    "C:\Users\Admin\AppData\Local\Temp\aa032088d71e8c64b6644af075a6ec6f43498a09eb916550a33f5a44351c1da2.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:1404
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2332
  • 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:2036

Network

MITRE ATT&CK Enterprise v6

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Downloads