Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    17-02-2022 13:59

General

  • Target

    71e3fce98a6436cf6a771732e9556106a071d86236f752d4540f669bef058f9c.exe

  • Size

    53KB

  • MD5

    58c8c8c3038a5fbca2202248a1101da0

  • SHA1

    d07e81d55f9fbc7702efb28ba2a37b855cb1cfbe

  • SHA256

    71e3fce98a6436cf6a771732e9556106a071d86236f752d4540f669bef058f9c

  • SHA512

    4ff4fb70971de46ea55e7f792760dc3bdb60912f537e5f201a05f070a0b09e82d6d3ca11389fa455e49702a44875d8423f49d0e31a543f480d71a9acb13bd3a7

Malware Config

Extracted

Path

C:\how_to_back_files.html

Ransom Note
<html> <style type="text/css"> body { background-color: #f5f5f5; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ display: block; margin: auto; } .tabs1 .head{ text-align: center; float: top; padding: 0px; text-transform: uppercase; font-weight: normal; display: block; background: #81bef7; color: #DF0101; font-size: 30px; } .tabs1 .identi { font-size: 10px; text-align: center; float: top; padding: 15px; display: block; background: #81bef7; color: #DFDFDF; } .tabs .content { background: #f5f5f5; /*text-align: center;*/ color: #000000; padding: 25px 15px; font-size: 15px; font-weight: 400; line-height: 20px; } .tabs .content a { color: #df0130; font-size: 23px; font-style: italic; text-decoration: none; line-height: 35px; } .tabs .content .text{ padding: 25px; line-height: 1.2; } </style> <body> <div class="tabs1"> <div class="head" ><b>Your personal ID:</b></div> <div class="identi"> <span style="width:1000px; color: #ffffff; font-size: 10px;">����������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span> <br> <!-- !!! dont changing this !!! --> </div> </div> <!-- --> <div class="tabs"> <!--tab--> <div class="tab"> <div id="tab-content1" class="content"> <div class="text"> <!--text data --> <b>/!\ YOUR COMPANY NETWORK HAS BEEN PENETRATED /!\</b><br> <b>All your important files have been encrypted!</b><br><br> <hr> Your files are safe! Only modified. (RSA+AES)<br><br> ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE<br> WILL PERMANENTLY CORRUPT IT.<br> DO NOT MODIFY ENCRYPTED FILES.<br> DO NOT RENAME ENCRYPTED FILES.<br><br> No software available on internet can help you. We are the only ones able to<br> solve your problem.<br><br> We gathered highly confidential/personal data. These data are currently stored on<br> a private server. This server will be immediately destroyed after your payment.<br> If you decide to not pay, we will release your data to public or re-seller.<br> So you can expect your data to be publicly available in the near future..<br><br> We only seek money and our goal is not to damage your reputation or prevent<br> your business from running.<br><br> You will can send us 2-3 non-important files and we will decrypt it for free<br> to prove we are able to give your files back.<br><br> <!--text data --> <hr> <b>Contact us for price and get decryption software.</b><br><br> <a>.onion</a><br> * Note that this server is available via Tor browser only<br><br> Follow the instructions to open the link:<br> 1. Type the addres "https://www.torproject.org" in your Internet browser. It opens the Tor site.<br> 2. Press "Download Tor", then press "Download Tor Browser Bundle", install and run it.<br> 3. Now you have Tor browser. In the Tor Browser open <a>.onion </a><br> 4. Start a chat and follow the further instructions. <br><br> <hr> <b>If you can not use the above link, use the email:</b><br> <a href="[email protected] ">[email protected] </a> <br><a href="[email protected]">[email protected]</a> <br> <b>* To contact us, create a new free email account on the site:</b> <a href="https://protonmail.com">protonmail.com<br> <hr> <b> IF YOU DON'T CONTACT US WITHIN 72 HOURS, PRICE WILL BE HIGHER.</b><br> </div> </div> </div> <!--tab--> <!--text data --> </div> </div> <!--tab--> </div> </div> </body> </html> �����������

Signatures

  • GlobeImposter

    GlobeImposter is a ransomware first seen in 2017.

  • Modifies extensions of user files 7 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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) 26 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71e3fce98a6436cf6a771732e9556106a071d86236f752d4540f669bef058f9c.exe
    "C:\Users\Admin\AppData\Local\Temp\71e3fce98a6436cf6a771732e9556106a071d86236f752d4540f669bef058f9c.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:3684
  • 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:3804
  • 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:1396

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3804-130-0x0000028466B40000-0x0000028466B50000-memory.dmp

    Filesize

    64KB

  • memory/3804-131-0x0000028466BA0000-0x0000028466BB0000-memory.dmp

    Filesize

    64KB

  • memory/3804-132-0x00000284698C0000-0x00000284698C4000-memory.dmp

    Filesize

    16KB