Overview

overview

10

Static

static

3

Fantom.exe

windows10-2004-x64

10

Fantom.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    Fantom.exe
  • Size 261KB
  • Sample260109-kvvrtsft7g
  • SHA256 f4234a501edcd30d3bc15c983692c9450383b73bdd310059405c5e3a43cc730b
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
fantomdefense_evasiondiscoveryransomware

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>EXEadrcJU9dkODUjXN6n+GhNly5UsnMNhtsadXU1SMoAvXU2DOgaVlZH/IkepkmmuFxcuRoFSWcur3mjp+G+7yiUJJMl29HiE8GojgPvtey2vV2gkVbF5GxFI/krn/4KWuKn43nEM0ssfbdA3FZ2Np5RwzUdNoNTHDAxcVX6MHC3fPwCl3es921wRsov1xqcN268YyrkUG6CQAC+FKNIsppuAr4JfZz9y8xPfHhtHAaRcSyS5PjY0fpkrNZ7cmlQOFYsX/FEOSGAkLYNaMF5dRif59jtWqRTcNtgBNlMuF5C0Pb4h7izsH3CsH8NJK6cUD9m0Ctkd4qY9A/KXhim1g==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>o5WL63RPJCG+x3AhEAVnq6k5Q00IragmWP4XnPOXMnRxxyu5KvQyN95N0BcpNZAj6gbXBJi7RweAM9DsS1cT+slNwPrjBodLhuKxQ0tw41NtjO1B+nyGRELq6wUpiLUM5vvsMACltautTVPf/1DdIZElAWfBhKzeUV3ie8Xf/x+AQVvqrpqyGQ4AAlY4jtdudQVuNXzdOgXHUFocvnXj92tkJMaj1NMVLO+1EcHQdJmLOefyFoqhbPkcfYTE09gn5Z69Mjf0MXGAxpzKzFKw9qKKbncNb7/dx139wspXXRh5sWtujAofTyECiusbnc/x9mAd2bIp+ALRxx6z5G8wdQ==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

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

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

      ransomwarefantom

    • Fantom family

      fantom

    • Renames multiple (2253) files with added filename extension

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

      ransomware

    • Disables Task Manager via registry modification

      defense_evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks