Overview

overview

10

Static

static

1

URLScan

urlscan

1

https://sourceforge....

windows11-21h2-x64

10

Sharing

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General

  • Target
    https://sourceforge.net/projects/malware-samples.mirror/
  • Sample260903-2xtqzscb36
Score
10/10
fantomadwaredefense_evasiondiscoveryinstallerpersistenceransomwarespyware

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>hen3yvdAoK0zAxrtpblPedFDrjOGS9jTNjf0IEpmsB1Q3PDmaUL7n1AGIqdViSGKV/0bF7P+gVh95W3hyEMVkS1BKKkUJw3SWx5MZTBzgkuG5uNbDmvAK6C3/GnFIWwWjsUDfvtbH7IE+9KUcejvVsenJUzcOWpSlfC4Ls5HiBPhbvnvserhHb0+8PtnmfcL5IehaJor+Dbi6Dp/ZFn9D0K1bH520o0R1GkLXe3Gn2khFoNLPjahbM+A/LyGkbpwoZHJeR17neOGXUvKhCCt/7cLNP9xI1hqaWkXdgcGIbKai9rWZazjlDh5A8dv5C5Lp0Qu6qYHwvSG2EajtFOEuA==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>lGdhfjFUPOu5mhxIjjGpKnmPcsF+Zr90f4dUBP/RL8l5Plux46KS8TpoeSGlcXSK/vXN7oW5EV6AgPnCRH86YiISxQg8kfz02XwSl0cOQ0Q0b/1vTLGAsHD4lYeIZG8f8lscCtU240CTyw07iSgeU4nXiGE0CBHrvdz5CUDF0vQ+0pH3qERiU90g/guvnP3T53A1Agf7weJEfp27TgDZTsGrYHGrS5mnsggqdeBO3OC0tV1RGEXFAyJuIdzlMuo6C0T5wXyWvOkrAhSLfpgRUBxvoxt3xi8lgdYveEcuaIXIBmJEavUuJHV4Fnpw7QNVfLltR2znLomUXnfquiMH8g==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target
      https://sourceforge.net/projects/malware-samples.mirror/
    Score
    10/10
    adwaredefense_evasiondiscoveryfantominstallerpersistenceransomwarespyware

    • Family: Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

      ransomwarefantom

    • Renames multiple (139) 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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

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

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks