Overview

overview

10

Static

static

3

Fantom.exe

windows10-2004-x64

10

Fantom.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Fantom.exe
  • Size 261KB
  • Sample260628-zyk45aey9q
  • SHA256 f4234a501edcd30d3bc15c983692c9450383b73bdd310059405c5e3a43cc730b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
fantomadwaredefense_evasiondiscoverypersistenceransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Program Files\7-Zip\DECRYPT_YOUR_FILES.HTML

Ransom Note
  • <html> <head> <style> body{ background-color: #3366CC; } h1 { background-color: RGB(249, 201, 16); } p { background-color: maroon; color: white; } </style> </head> <body> <center> <h1><b> Attention ! All your files </b> have been encrypted. </h1></br> <p> Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets.</br> That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us.</br> Getting a decryption of your files is - SIMPLY task.</br></br> That all what you need:</br> 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] </br> 2. For test, decrypt 2 small files, to be sure that we can decrypt you files.</br> 3. Pay our services. </br> 4. GET software with passwords for decrypt you files.</br> 5. Make measures to prevent this type situations again.</br></br> IMPORTANT(1)</br> Do not try restore files without our help, this is useless, and can destroy you data permanetly.</br></br> IMPORTANT(2) </br> We Cant hold you decryption passwords forever. </br>ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. </p> <p> Your ID_KEY: <br> </p> <table width="1024" border="0"> <tbody> <tr> <td><p>Q6QXYplpCFIg0sI2OKyy2Vj0HaGmUIHz1jjJbMw1QUfNAHGWr9W5hKZWfnIbQap/ntAsRQw+Bs/i4xdXrNyQBFADl7xzk7ieX5k8Q+5cgq72ZQLWMCVz9DFGXyZSboN9/ERkPDOZ8WYTqNemk5GBO/cZnxeChSELTZBP6m/7ZgSc26Fm0ntkj0wktEWnhiyC/FwuDhc5j4qJMSryNC9LcEuc9X9Iu8jtNWeG6dVpX1UmtX/CbeISsSzNQFRLchcJLW/6mZBh2oWVrg8vD3qSK7jCN1PJ53sLIpovnCIAzCKFLO1RfdFr5LP6tGGd+opcQJcmb+aEwZ1euGv7xjcAqg==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Extracted

Path

  • C:\Program Files\7-Zip\DECRYPT_YOUR_FILES.HTML

Ransom Note
  • <html> <head> <style> body{ background-color: #3366CC; } h1 { background-color: RGB(249, 201, 16); } p { background-color: maroon; color: white; } </style> </head> <body> <center> <h1><b> Attention ! All your files </b> have been encrypted. </h1></br> <p> Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets.</br> That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us.</br> Getting a decryption of your files is - SIMPLY task.</br></br> That all what you need:</br> 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] </br> 2. For test, decrypt 2 small files, to be sure that we can decrypt you files.</br> 3. Pay our services. </br> 4. GET software with passwords for decrypt you files.</br> 5. Make measures to prevent this type situations again.</br></br> IMPORTANT(1)</br> Do not try restore files without our help, this is useless, and can destroy you data permanetly.</br></br> IMPORTANT(2) </br> We Cant hold you decryption passwords forever. </br>ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. </p> <p> Your ID_KEY: <br> </p> <table width="1024" border="0"> <tbody> <tr> <td><p>Tva5HxpMFIs/MIvYwrmecO+AjDUkDy7UAodQmg6ZDHl8mMHe53HdN0zOuVBjjrg5vfZaLO5pghcAZhvFaf3HjO/0AX96gxI0bktlzG6MvoMEgNOaUiWGMrAxJ84Yh6Vsu9D+EvTlfPMNr2N2eqkv5X45CBHawJj34fa9b0c3SQOhf+kzD2fqC0zr5TnwvIz5ax42WJ+QFFAwMRQlnNFtDyVdNtSCYb3PZUP4dyvyzxTTYVx0KK4lYnXiK+uaJSWrZril4dHpRexY4nyPb2qyouB9nJiCB+hl+xcywTjNE312zU6nG0x+ZYP5W2w1NtWcvradPATk2xB8XLbtMMzzBA==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target
      Fantom.exe
    • Size 261KB
    • SHA256 f4234a501edcd30d3bc15c983692c9450383b73bdd310059405c5e3a43cc730b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryfantomransomwarespywarestealeradwarepersistence

    • Family: Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

      ransomwarefantom

    • Renames multiple (5638) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

      persistence

    • Disables Task Manager via registry modification

      defense_evasion

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks