Overview

overview

10

Static

static

a4539f0a37...55.exe

windows7_x64

10

a4539f0a37...55.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    180s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11-02-2022 06:40

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General

  • Target

    a4539f0a3745030f91e97d59b937f8bfcd1f9430cabf65f08e280291b6d64f55.exe

  • Size

    53KB

  • MD5

    0371b969f310c5dfbdd79c7cf9658cb3

  • SHA1

    70cbd69f69ce164dae29febfca371ea30f2fbd62

  • SHA256

    a4539f0a3745030f91e97d59b937f8bfcd1f9430cabf65f08e280291b6d64f55

  • SHA512

    39ae060fd0d0eeffc3f1df2e872a8bf31d5e80553197523e56629178a5b7fbf56e8654f7b55cb2f9d540d22d326f109d2abeec837f1c66582a6297c8b5dbadd3

Score
10/10
globeimposterpersistenceransomware

Malware Config

Extracted

Path

C:\how_to_back_files.html

Ransom Note
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <style type="text/css"> body { background-color: #252525; } { 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: #1C1A1B; } .letter { color: #FF0000; font-weight: 600 } .tabs1 .identi { margin-left: 0px; line-height: 13px; font-size: 13px; text-align: center; float: top; display: block; padding: 15px; background: #1C1A1B; color: #F1EADA; } /*---*/ .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: #F1EADA; } .tabs .content { z-index: 0;/* or display: none; */ overflow: hidden; width: 800px; /*padding: 25px;*/ position: absolute; top: 32px; left: 0; background: #1C1A1B; color: #F1EADA; opacity:0; transition: opacity 400ms ease-out; } .tabs .content .text{ width: 700px; padding: 25px; } .tabs>.tab>[id^="tab"]:checked + label { top:0; background: #1C1A1B; color: #E29F12; } .tabs>.tab>[id^="tab"]:checked ~ [id^="tab-content"] { z-index: 1;/* or display: block; */ opacity: 1; transition: opacity 400ms ease-out; } </style> <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><span class="letter"> <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> <h3> To decrypt, follow the instructions below. </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 class="letter"> [email protected]</span><br> (Or alternate mail <span class="letter">[email protected]</span>)</p><p> In the letter include your personal ID (look at the beginning of this document).</p> We will give you the decrypted file as proof and assign the price for decryption all files.<p></p> After payment you will receive a decryptor and instructions We can decrypt one file in quality the evidence that we have the decoder.<br> <p> <center><b><p style="color: #ffff66;">MOST IMPORTANT!!!</p></center> <hr color="#ffff66"> <center><p style="color: #ffff66;"> We are ready to work through intermediaries and guarantors. </b></p></center> <hr color="#ffff66"> <ul> <li>Only decoder_master proof can decrypt your files.</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 users unique encryption key. </li> </ul> <!--text data --> </div> </div> </div> <!--tab--> </ul> <!--text data --> </div> </div> <!--tab--> </div> </div> </body> </html> �
Emails

[email protected]</span><br>

class="letter">[email protected]</span>)</p><p>
URLs

http-equiv="Content-Type"

Signatures

  • GlobeImposter

    GlobeImposter is a ransomware first seen in 2017.

    ransomwareglobeimposter
  • Suspicious use of NtCreateProcessExOtherParentProcess 2 IoCs
  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops desktop.ini file(s) 20 IoCs
  • Drops file in Windows directory 8 IoCs
  • Program crash 2 IoCs
  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 55 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4539f0a3745030f91e97d59b937f8bfcd1f9430cabf65f08e280291b6d64f55.exe
    "C:\Users\Admin\AppData\Local\Temp\a4539f0a3745030f91e97d59b937f8bfcd1f9430cabf65f08e280291b6d64f55.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:1964
  • 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:204
  • 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:2684
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2684 -s 4536
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      PID:3512
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:404
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:408
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 408 -p 2684 -ip 2684
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:3212
    • 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:936
    • 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:3264
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 3264 -s 3892
        2⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        PID:3464
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 536 -p 3264 -ip 3264
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:4420

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/204-130-0x000001A30D970000-0x000001A30D980000-memory.dmp

      Filesize

      64KB

      Download

    • memory/204-131-0x000001A30DF20000-0x000001A30DF30000-memory.dmp

      Filesize

      64KB

      Download

    • memory/204-132-0x000001A3105F0000-0x000001A3105F4000-memory.dmp

      Filesize

      16KB

      Download

    • memory/404-142-0x0000018E7CB40000-0x0000018E7CB44000-memory.dmp

      Filesize

      16KB

      Download