General

  • Target

    https://github.com/topics/ransomware

  • Sample

    240604-kx5ptaca77

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>QVbAytjTtTVFBoMU72bJ/rdhApDcQx7ztsVMIvyy9Udg419KO3MiKYrtB7AQoHVYLEulDAx0gSyzXUA698QLu7UKHTWEy2+oNOtp0O6r/5a8QexwSHvwE+B1hmhm56yRsKZw9WiX9chrvKsulauVYlkggy4C1kssPNA86Xdt/zSJp8aIcC14629S/Qvsi/R4d67EEcmMo51oGpCS6VxtR641AxPsk7wmGDWq015McE+aA4hNk8k0FqzwBHkRXYzb9XnybodIVqsLvKta2QMrdr1zUKKQ5Vtnw9x37xd1jxA/vISm6h8yMbrAvJmTrSYWNBgL7G44kcxSytmoDBJXuQ==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target

      https://github.com/topics/ransomware

    • CryptoLocker

      Ransomware family with multiple variants.

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Renames multiple (1035) files with added filename extension

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

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Command and Control

Web Service

1
T1102

Tasks