General

  • Target

    Fantom.zip

  • Size

    198KB

  • Sample

    240529-qvl3ksgh69

  • MD5

    3500896b86e96031cf27527cb2bbce40

  • SHA1

    77ad023a9ea211fa01413ecd3033773698168a9c

  • SHA256

    7b8e6ac4d63a4d8515200807fbd3a2bd46ac77df64300e5f19508af0d54d2be6

  • SHA512

    3aaeeb40471a639619a6022d8cfc308ee5898e7ce0646b36dd21c3946feb3476b51ed8dfdf92e836d77c8e8f7214129c3283ad05c3d868e1027cb8ce8aa01884

  • SSDEEP

    6144:gEXMZKhTuDA9rBNxIzdZgNbSEehM1Kq+i:gVKNuKdIzcNbxD1f+i

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>p+3E5eIQak9VJR3WD1XTu286MvVx9SzdsaYv1bGLTumpDBc19f+PA/Z3FaidawDxwuttA2hOXfxdxfLK7pzvSOQR+yb3YnxETS0rXcFvpcTgkdtjqnCk5dF1ZXWnwKtatrCt2epxTIg2OuZ176VVaV3KlfqTBW3DFenyuC2nrRh/p4q14BrAwIM6HhXQaQYf6w0miqg1f3faMDy7Orl/dYLz7lymKmpIE+DDRQogFCgCz/Tp/tXEGg0WdIiWk137uq2Q+a+BmOcZ0YBcLkRSOStLa6WLpi/OsfRcmg4bhaMw7Eywc6+wizLvoQ7i+jhAU7pn9XxoZFico48piEt/Bg==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target

      Fantom.zip

    • Size

      198KB

    • MD5

      3500896b86e96031cf27527cb2bbce40

    • SHA1

      77ad023a9ea211fa01413ecd3033773698168a9c

    • SHA256

      7b8e6ac4d63a4d8515200807fbd3a2bd46ac77df64300e5f19508af0d54d2be6

    • SHA512

      3aaeeb40471a639619a6022d8cfc308ee5898e7ce0646b36dd21c3946feb3476b51ed8dfdf92e836d77c8e8f7214129c3283ad05c3d868e1027cb8ce8aa01884

    • SSDEEP

      6144:gEXMZKhTuDA9rBNxIzdZgNbSEehM1Kq+i:gVKNuKdIzcNbxD1f+i

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Renames multiple (4959) files with added filename extension

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

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Drops startup file

    • Executes dropped EXE

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

3
T1082

Impact

Defacement

1
T1491

Tasks