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Analysis

  • max time kernel
    184s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    11/02/2022, 06:43

General

  • Target

    8d05f031fd9cb4e3aa8e7af69aae722209a2e9601d03a1639412376228d551dd.exe

  • Size

    54KB

  • MD5

    19a98e0ab1c640f90acf595a3940a536

  • SHA1

    5e2d85b8801897df0382607dcd15d923adfa2c04

  • SHA256

    8d05f031fd9cb4e3aa8e7af69aae722209a2e9601d03a1639412376228d551dd

  • SHA512

    32544b741aac0bc89d776d938472b72cea8d30e89aabe7b715408669b7d114a2333f2d156a868432b3137d3c00b0f88ea98155a0d7787e1a69fc30c17032c57e

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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 17 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\8d05f031fd9cb4e3aa8e7af69aae722209a2e9601d03a1639412376228d551dd.exe
    "C:\Users\Admin\AppData\Local\Temp\8d05f031fd9cb4e3aa8e7af69aae722209a2e9601d03a1639412376228d551dd.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:3296
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3032
  • 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:3944

Network

MITRE ATT&CK Enterprise v6

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Downloads