Analysis

  • max time kernel
    166s
  • max time network
    183s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11-02-2022 06:47

General

  • Target

    77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe

  • Size

    53KB

  • MD5

    f2f4cbbcbad997cf857eefb2a8d7dc38

  • SHA1

    340dcfa4763e55204ca8a504a29c3b938b909347

  • SHA256

    77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906

  • SHA512

    35844d8c99bd166b6ce414907d5b9c19ba4162ff0e6644f8839b55deeac338e58657afd557b9edcfa139f5f723cb0db4acd7e4e687a23abbac154c54b4a3c2ec

Malware Config

Extracted

Path

C:\Recovery_Instructions.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: 15px; color: #000000; background: #4A83FD; } .tabs1 .identi { margin-left: 15px; 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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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>&#9760; Your files are encrypted! &#9760;</h1> <hr/> <h3>All your important data has been encrypted.</h3> <br/> <div class="text"> <!--text data --> To recover data you need decryptor.</br> To get the decryptor you should:</br> <p>Send 1 test image or text file <span> [email protected] </span>.</br> 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> <center>Attention!</center></br> <ul> <li>Reserv email [email protected] can decrypt your files</li> <li>Do not attempt to remove the program or run the anti-virus tools</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 5 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 15 IoCs
  • Drops file in Windows directory 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe
    "C:\Users\Admin\AppData\Local\Temp\77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:4628
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1628
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
      PID:700

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1628-130-0x000002AAB9E20000-0x000002AAB9E30000-memory.dmp

      Filesize

      64KB

    • memory/1628-131-0x000002AAB9E80000-0x000002AAB9E90000-memory.dmp

      Filesize

      64KB

    • memory/1628-132-0x000002AABC540000-0x000002AABC544000-memory.dmp

      Filesize

      16KB