Resubmissions

10-12-2024 16:09

241210-tl51wazlb1 10

10-12-2024 16:09

241210-tlwr7szlay 3

10-12-2024 16:06

241210-tj97tazkfz 7

10-12-2024 16:05

241210-tjx79azkfs 3

09-12-2024 15:24

241209-stjxyaskds 10

General

  • Target

    https://github.com/Endermanch/MalwareDatabase

  • Sample

    241210-tl51wazlb1

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\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>qP7ZO1Kc31LXrxF27sRxEDFp0hiTqi//GPjmKFS14+Fg5zDjpMWitgTce4wKZx3cLJKnRLQMYucYBbGAo3iGpgYbaKX5c0/UBGgSUoD7Oh4RF6x6RyXKQzImAy07bKKFh+T50Fv9dsdcbzdKRfRdxzeraQKlhnZ5WKKf6G569ADDuKGByQDvk3cekCHFfebQLvBgYM4lU3GeZt6LKTK5kzkT1blDfLQhxW5UCqpeZYn9TtknLs+ehqX/JUooWj2LiHHmxFKnvccoldgceBwtRBYhKyhHd/at9wkm/YXLdvAJe/+01OE13L47GntzNUqw3Q2odYkL+IIRL8AbxmtTMQ==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target

      https://github.com/Endermanch/MalwareDatabase

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Fantom family

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (3063) files with added filename extension

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

    • Blocklisted process makes network request

    • Disables Task Manager via registry modification

    • 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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks