Analysis

  • max time kernel
    179s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11-02-2022 06:31

General

  • Target

    cd775c076aec45cd717fd967c9be6822932118684fe5e34e8f3ef21747f149fb.exe

  • Size

    54KB

  • MD5

    f24e4fd2f9214a7f859d4f9d2d68c76a

  • SHA1

    86f0f8ca32d361ca8ac570f435eb04bf522f7a73

  • SHA256

    cd775c076aec45cd717fd967c9be6822932118684fe5e34e8f3ef21747f149fb

  • SHA512

    9e4c922746f63fa0bc2fc75142feba3ebbb0b0d2b6cf6414552361ec7e8b19ab2d1b4821afb22ca103b6d98568b5e67ffa1b00af27146144bd964f231c1e45af

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>���������������77 AC 69 95 6C B4 8F BF DD F1 BF AB AC B0 8C 72 5E F1 A2 B1 02 0F 92 AB C5 6F C8 1A E5 92 A5 5E CD 02 15 33 C0 9F 17 33 14 76 B1 A2 32 F2 8E 20 96 51 7D 55 0D BA DC 57 95 7A B8 83 3A 38 A6 2D CA 98 DF 64 55 1D 66 6C 67 AB 43 AF F7 02 22 38 1A 0F B4 E3 AA 95 D7 7A 87 33 50 49 F8 17 CC 80 0D B5 C2 78 19 EA 20 71 99 92 B8 55 60 8A 68 AA DB AF B5 C8 B6 D5 F0 DB 85 1A FC 89 3C 86 07 32 72 64 45 DB 95 84 B0 BF CD 9E C7 78 B1 48 27 33 2E 31 27 4F 29 2F 21 42 B2 60 AF 5D DE 42 89 52 93 AA 1C 36 79 0A 9B DE 22 70 FE A1 40 6B E1 1A 6E C1 5F C3 40 AF 14 D4 48 C3 56 13 A1 08 8C CE 0D 34 DF 89 49 12 DC E4 45 80 93 13 85 06 99 A6 E0 DB 2A 43 6E 41 09 12 94 2B B9 F5 2B D9 90 35 05 C2 1E F5 43 D6 87 BF FE 5F AE 20 E0 00 81 7E 39 9B 7D 41 DD 48 81 3F 6C 92 67 8E CF CA AF D5 </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.

  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 19 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd775c076aec45cd717fd967c9be6822932118684fe5e34e8f3ef21747f149fb.exe
    "C:\Users\Admin\AppData\Local\Temp\cd775c076aec45cd717fd967c9be6822932118684fe5e34e8f3ef21747f149fb.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:4884
  • 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:2472
  • 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:848
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
      PID:2800
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
      1⤵
        PID:3308

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2472-130-0x0000022BA1330000-0x0000022BA1340000-memory.dmp

        Filesize

        64KB

      • memory/2472-131-0x0000022BA1390000-0x0000022BA13A0000-memory.dmp

        Filesize

        64KB

      • memory/2472-132-0x0000022BA4090000-0x0000022BA4094000-memory.dmp

        Filesize

        16KB

      • memory/2800-142-0x000002095E800000-0x000002095E804000-memory.dmp

        Filesize

        16KB