Overview

overview

10

Static

static

sample.exe

windows7_x64

10

sample.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    173s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11-02-2022 07:01

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General

  • Target

    sample.exe

  • Size

    53KB

  • MD5

    01a6c1720a2d8fa6a38691d937229d18

  • SHA1

    02868596aff23e1cfd591c8a0fff2d0124b744a5

  • SHA256

    13566c392034d0c9f37d7bddc91d43f00d114efb9615907f6c4052e7c89c2e48

  • SHA512

    8e80f2e2c193af0d255a2d9c03c93964d94f921ddd745c9f5edab04bce6d4c7bc7648c7b05bec5e4d4e61c3cc9641b7776582a1ea9dc74cb9884a29c919170d5

Score
10/10
globeimposterpersistenceransomwarespywarestealer

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><strong><h1> [email protected]<br> [email protected]</h1></strong></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] and [email protected] can decrypt your files</li> <li>Do not trust anyone [email protected] and [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> ��������

Signatures

  • GlobeImposter

    GlobeImposter is a ransomware first seen in 2017.

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

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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 4 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 52 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\sample.exe
    "C:\Users\Admin\AppData\Local\Temp\sample.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:312
  • 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:4892
  • 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:4380
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 4380 -s 4124
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      PID:400
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:3344
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
      1⤵
      • Modifies data under HKEY_USERS
      PID:3948
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 432 -p 4380 -ip 4380
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:3076
    • 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:444
    • 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:4420
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 4420 -s 3876
        2⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        PID:4280
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 420 -p 4420 -ip 4420
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:1176

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/3948-136-0x0000014497EF0000-0x0000014497EF4000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4892-130-0x000001BCA1130000-0x000001BCA1140000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4892-131-0x000001BCA1190000-0x000001BCA11A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4892-132-0x000001BCA3E70000-0x000001BCA3E74000-memory.dmp

      Filesize

      16KB

      Download