Overview

overview

10

Static

static

77f43bb26b...8d.exe

windows7_x64

10

77f43bb26b...8d.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    173s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11-02-2022 06:47

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General

  • Target

    77f43bb26b71c6175658d45e61fc59f5e36de6a49c701968d47c028a14be3e8d.exe

  • Size

    53KB

  • MD5

    b8210349ad7b114c263b007bf51ac01e

  • SHA1

    14fb78c128e82b219cb778948e00056ebe00ec39

  • SHA256

    77f43bb26b71c6175658d45e61fc59f5e36de6a49c701968d47c028a14be3e8d

  • SHA512

    9e864fcfabef250cf37ee9d137f5fd49439b6b50aae6b6198cdab0be69baae7b955cfbf2f894775123a69faa262d558d4d4586caf3e0655b8781a9793a882079

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> [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.

    ransomwareglobeimposter
  • Suspicious use of NtCreateProcessExOtherParentProcess 2 IoCs
  • Modifies extensions of user files 8 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 7 IoCs
  • Program crash 3 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 6 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 55 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77f43bb26b71c6175658d45e61fc59f5e36de6a49c701968d47c028a14be3e8d.exe
    "C:\Users\Admin\AppData\Local\Temp\77f43bb26b71c6175658d45e61fc59f5e36de6a49c701968d47c028a14be3e8d.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:1160
  • 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:4464
  • 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:3080
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3080 -s 4748
      2⤵
      • Program crash
      PID:3496
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3080 -s 4748
      2⤵
      • Program crash
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4956
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:3920
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:360
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 368 -p 3080 -ip 3080
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:536
    • 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:3880
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 3880 -s 4208
        2⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        PID:2020
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 556 -p 3880 -ip 3880
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:3864
    • 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:4784

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/3920-142-0x00000239AB670000-0x00000239AB674000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4464-130-0x0000022CDD720000-0x0000022CDD730000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4464-131-0x0000022CDD780000-0x0000022CDD790000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4464-132-0x0000022CDFE50000-0x0000022CDFE54000-memory.dmp

      Filesize

      16KB

      Download