Analysis

  • max time kernel
    162s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11/02/2022, 06:27

General

  • Target

    df65b36f9e669d7d06e890bb5b403c87c564e84d66c87173e6caedd891ab95ae.exe

  • Size

    53KB

  • MD5

    d9a3599f9f7235ad6aebbcd7a18859a3

  • SHA1

    00331d2a6f89471899196d8234d16a0bc80339a0

  • SHA256

    df65b36f9e669d7d06e890bb5b403c87c564e84d66c87173e6caedd891ab95ae

  • SHA512

    2af0956cd6ac4da807872b6ef76310b7df3a50903c123447f2025ebfdf312a91d3de0808d4b70ab93da180f4cf48bb2cc2d80f4318be5ddda786bbefb4d78e5d

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: 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>Only [email protected] can decrypt your files</li> <li>Do not trust anyone [email protected]</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>
Emails

Signatures

  • GlobeImposter

    GlobeImposter is a ransomware first seen in 2017.

  • Modifies extensions of user files 10 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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) 23 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df65b36f9e669d7d06e890bb5b403c87c564e84d66c87173e6caedd891ab95ae.exe
    "C:\Users\Admin\AppData\Local\Temp\df65b36f9e669d7d06e890bb5b403c87c564e84d66c87173e6caedd891ab95ae.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:3232
  • 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:3712
  • 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⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:4060
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3156
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:2696
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:3004
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 408 -p 3156 -ip 3156
      1⤵
        PID:3880

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/2696-142-0x0000021B1E1F0000-0x0000021B1E1F4000-memory.dmp

        Filesize

        16KB

      • memory/3712-130-0x0000020A52E20000-0x0000020A52E30000-memory.dmp

        Filesize

        64KB

      • memory/3712-131-0x0000020A53040000-0x0000020A53050000-memory.dmp

        Filesize

        64KB

      • memory/3712-132-0x0000020A55530000-0x0000020A55534000-memory.dmp

        Filesize

        16KB