General

  • Target

    sample

  • Size

    66KB

  • Sample

    241128-sw4ecs1qc1

  • MD5

    6e4937de04ab7a4f8196fad37c93b3a1

  • SHA1

    fbb6b835f8b50eafa6e76808015ef60c2baccb1d

  • SHA256

    58de8cf73a1650f83858f9ad733f7dd0f19c8296c79a2687327e96ce7eae67dd

  • SHA512

    ee4feb3ba531194cd0203d0f46fe170556cb154e1df608c17b1775470af60f48eb859892612ebab38fc694c0fc59ed05e61ddef8fd6b7df56d1de0be6f5b4e4b

  • SSDEEP

    1536:y69UFLCCwNieoupehNFZuSuWtWWxvRo1HrA2jEWcSkSpqNRI6ZsnVJr+SvYa546B:99UFLhwjURo1HrA2jEWcSkSpqNRI6Zsf

Malware Config

Extracted

Path

C:\Program Files\7-Zip\Lang\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>Qn6bJsUtQf5byM+yVZINzJ+IRdCNmQlPM9/TcUItl3S+ItxMrk2TpWadwlsh+TdFE3sua2QD9CEsIDWrdgBSzX8jYQMgvNV7ykBENUYe2G2LvPGPH38sni9EmwHlubFiaGBO7/KKHJxcQWkKKE5TyNqjtSitTP08jo2fI3kFwK0QqAOFPL9M9Eig3GUpbDFJE90ER7A4RFM8nkTEwUcQzdXMhowDQBz2QZiWZ5V3rb7hikbi5kZdl8nD7ezAWD0Z/rTRx6bYcs/hCYrTtRf/UCL5SchjST+yVEeS7JUb1//m3RsV4RCaiKcUezGOgX10zKMt81baL9uFn3+q1Vcn1Q==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target

      sample

    • Size

      66KB

    • MD5

      6e4937de04ab7a4f8196fad37c93b3a1

    • SHA1

      fbb6b835f8b50eafa6e76808015ef60c2baccb1d

    • SHA256

      58de8cf73a1650f83858f9ad733f7dd0f19c8296c79a2687327e96ce7eae67dd

    • SHA512

      ee4feb3ba531194cd0203d0f46fe170556cb154e1df608c17b1775470af60f48eb859892612ebab38fc694c0fc59ed05e61ddef8fd6b7df56d1de0be6f5b4e4b

    • SSDEEP

      1536:y69UFLCCwNieoupehNFZuSuWtWWxvRo1HrA2jEWcSkSpqNRI6ZsnVJr+SvYa546B:99UFLhwjURo1HrA2jEWcSkSpqNRI6Zsf

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

    • Dharma family

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Fantom family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (566) files with added filename extension

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

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Deletes itself

    • 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 desktop.ini file(s)

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks