Analysis

  • max time kernel
    183s
  • max time network
    198s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11-02-2022 06:31

General

  • Target

    d055a01b21255940b9c7e12f1f8b0109b48bdbbd6a7cc324d2bdf0c755e6dbcb.exe

  • Size

    54KB

  • MD5

    2230e5a57f6ca0e83d3846335ae35df4

  • SHA1

    2976736cee03e11c453cb2e647e1da1a7000cd86

  • SHA256

    d055a01b21255940b9c7e12f1f8b0109b48bdbbd6a7cc324d2bdf0c755e6dbcb

  • SHA512

    0676a12baff08ca205835182cec877a516bf417b9f93151ee58b75e640278d2d393161883218a2ef2f8c618b116e9ab739b3e38ba4270e8dde2527a47d23870a

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.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • 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
  • Program crash 2 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 45 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d055a01b21255940b9c7e12f1f8b0109b48bdbbd6a7cc324d2bdf0c755e6dbcb.exe
    "C:\Users\Admin\AppData\Local\Temp\d055a01b21255940b9c7e12f1f8b0109b48bdbbd6a7cc324d2bdf0c755e6dbcb.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:960
  • 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:1124
  • 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:2176
  • 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 AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:460
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 460 -s 4572
      2⤵
      • Program crash
      PID:4496
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 460 -s 4572
      2⤵
      • Program crash
      PID:4544
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:1776
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:1992
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 440 -p 460 -ip 460
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:4468

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1124-133-0x00000207AFE20000-0x00000207AFE30000-memory.dmp

      Filesize

      64KB

    • memory/1124-134-0x00000207AFE80000-0x00000207AFE90000-memory.dmp

      Filesize

      64KB

    • memory/1124-135-0x00000207B2550000-0x00000207B2554000-memory.dmp

      Filesize

      16KB

    • memory/1776-145-0x000002302D090000-0x000002302D094000-memory.dmp

      Filesize

      16KB