Analysis

  • max time kernel
    140s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/01/2025, 15:59

General

  • Target

    e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe

  • Size

    473KB

  • MD5

    f83fb9ce6a83da58b20685c1d7e1e546

  • SHA1

    01c459b549c1c2a68208d38d4ba5e36d29212a4f

  • SHA256

    e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684

  • SHA512

    934ec9073a28b90e8df785bef49f224789da59f83729208b92dba0503e2894b3f48ed04b20de1ba49374b1cd26f0c87e8e5ab79e817258135e3be2c171f3f396

  • SSDEEP

    12288:v6l/7FpnaeoQbRLBYdunMCayql4YcQD+AgJbAWgjbgpQ:CDna43YAKl4Yci+AggEpQ

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3533259084-2542256011-65585152-1000\DECRYPT-FILES.html

Ransom Note
<html> <head> <script> function CopyToClipboard(containerid) { if (document.selection) { var range = document.body.createTextRange(); range.moveToElementText(document.getElementById(containerid)); range.select().createTextRange(); document.execCommand("copy"); } else if (window.getSelection) { var range = document.createRange(); range.selectNode(document.getElementById(containerid)); window.getSelection().addRange(range); document.execCommand("copy"); alert("Base64 copied into the clipboard!") } } </script> <style> html{ margin:0; padding:0; width:100%; height:100%; } body { background: #000000; color: #ececec; font-family: Consolas }; .tooltip { position: relative; display: inline-block; border-bottom: 1px dotted black; } .tooltip .tooltiptext { visibility: hidden; width: 120px; background-color: #555; color: #fff; text-align: center; border-radius: 6px; padding: 5 px 0; position: absolute; z-index: 1; bottom: 125%; left: 50%; margin-left: -60px; opacity: 0; transition: opacity 0.3s; } .tooltip .tooltiptext::after { content: ""; position: absolute; top: 100%; left: 50%; margin-left: -5px; border-width: 5px; border-style: solid; border-color: #555 transparent transparent transparent; } .tooltip:hover .tooltiptext { visibility: visible; opacity: 1; } p#base64{ -ms-word-break: break-all; word-break: break-all; -webkit-hyphens: auto; -moz-hyphens: auto; -ms-hyphens: auto; hyphens: auto; } p#base64:hover{ cursor: hand; } </style> </head> <body> <table style="position: absolute;" width="100%"> <tr> <td style="width: 25%;"> <td style="width: 50%;"> <div style="text-align: center; font-size: 20px;"> <p><b>Maze ransomware</b></p> <p>*********************************************************************************************************************</p> <p>Attention! Your documents, photos, databases, and other important files have been encrypted!</p> <p>*********************************************************************************************************************</p> </div> <div style="text-align: center; font-size: 18px;"> <p><b>What is going on?</b><br>Your files have been encrypted using strong reliable algorithms RSA-2048 and ChaCha20 with an unique private key for your system</p> <p>You can read more about this cryptosystem here: <a href=https://en.wikipedia.org/wiki/RSA_(cryptosystem)>https://en.wikipedia.org/wiki/RSA_(cryptosystem)</a></p> <p>The only way to recover (decrypt) your files is to buy decryptor with the unique private key</p> <p><u>Attention! Only we can recover your files! If someone tell you that he can do this, kindly ask him to proof!</u></p> <p>By us you can decrypt one of your files for free as a proof of work that we have the method to decrypt the rest of your data.</p> <p>In order to either buy the private key or make test decryption contact us via email: <br> <u><b>Main e-mail: [email protected]<br>Reserve e-mail: [email protected]</b></u> <p>Remember to hurry up as email address may not be available for very long as soon as law enforcements of different countries always trying to seize emails used in ransom companies <p>If you are willing to pay but you are not sure knock us and we will save your e-mail address. In case the listed addresses are seized we will write you from the new one</p> <p>Below you will see a big base64 blob, you will need to email us and copy this blob to us.<br>you can click on it, and it will be copied into the clipboard.</p> <p>If you have troubles copying it, just send us the file you are currently reading, as an attachment.</p> <p>Base64: </p> </div><div style="text-align: center; font-size: 12px;"><p id="base64" onclick="return CopyToClipboard('base64')" class="tooltip">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<span class="tooltiptext">Click here to copy</span></p></div></td><td style="width: 25%; text-align: right;"></tr></table></body></html>
Emails

[email protected]<br>Reserve

[email protected]</b></u>

Signatures

  • Maze

    Ransomware family also known as ChaCha.

  • Maze family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops startup file 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
    "C:\Users\Admin\AppData\Local\Temp\e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe"
    1⤵
    • Drops startup file
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2504
    • C:\Windows\system32\wbem\wmic.exe
      "C:\vadd\kocnl\imm\..\..\..\Windows\ib\oic\m\..\..\..\system32\ib\x\nte\..\..\..\wbem\uuhsm\ecll\cbvqn\..\..\..\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2456
    • C:\Windows\system32\wbem\wmic.exe
      "C:\a\ckvnn\..\..\Windows\sy\..\system32\by\ro\unk\..\..\..\wbem\sv\..\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2516
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2856
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}
    1⤵
    • System Location Discovery: System Language Discovery
    PID:2832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-3533259084-2542256011-65585152-1000\DECRYPT-FILES.html

    Filesize

    6KB

    MD5

    a919cdd327db9d2159062e4e0c34e2a3

    SHA1

    1d1167d287f06e0af431ff5b2ed8a1427be12e6e

    SHA256

    2fa956a8ca52defbee38d2c08bb43562f62738bef6cb901515d937d9c4fd0c9c

    SHA512

    578c2553bf426ca2f7a6286460d5ef89536e655acc4fda140c63280639b8a1618bffff1cd20f08d5a4129fef2e8c80ed48f07e65cdabbac145fa101a5d02008c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\Files\UserLexicons\SP_D295DC17A24046AA88B505BE686EA18A.dat

    Filesize

    940B

    MD5

    6c38ebbb81b2ab8aec2ddfce27da8cb1

    SHA1

    447d605289b4afd7ec886d18996646bda9895f9d

    SHA256

    ef2b4c1c31ecf92dfa4b7956d1300a164922afd76287b931e87e3cf9de4543d2

    SHA512

    ae035f71500783d489473aeff0f424588a568ba6571a43c56609d49022ec03c691985a190bef2a226b88a42f4beacd9505fb42ecbef76de6f2007aeb3d05edee

  • memory/2504-0-0x00000000007E0000-0x0000000000839000-memory.dmp

    Filesize

    356KB

  • memory/2504-1-0x0000000001CC0000-0x0000000001D1B000-memory.dmp

    Filesize

    364KB

  • memory/2504-7-0x0000000001CC0000-0x0000000001D1B000-memory.dmp

    Filesize

    364KB

  • memory/2504-11-0x0000000001CC0000-0x0000000001D1B000-memory.dmp

    Filesize

    364KB

  • memory/2504-15-0x0000000001CC0000-0x0000000001D1B000-memory.dmp

    Filesize

    364KB

  • memory/2504-1965-0x0000000001CC0000-0x0000000001D1B000-memory.dmp

    Filesize

    364KB