Resubmissions

30/04/2026, 02:38

260430-c45dmad19j10

18/10/2025, 02:40

251018-c56cbag16d10

General

  • Target
    4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29.exe
  • Size 1.8MB
  • Sample251018-c56cbag16d
  • SHA256 4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\fucked_icon\READ_ME_NOW.txt

Ransom Note
  • / # Hello, if you are seeing this then you have been attacked by Kyber Ransomware. \ <=> Your files are encrypted with the AES-256-CTR algorithm. >-- (Explanation) https://en.wikipedia.org/wiki/Advanced_Encryption_Standard <=> Two asymmetric algorithms X25519 and Kyber1024 were used for key generation. >-- (Explanation) https://en.wikipedia.org/wiki/Curve25519 >-- (Explanation) https://en.wikipedia.org/wiki/Kyber <=> Keys are created from several random sources, so do not hope that you will return the files without our help >-- (Explanation) https://en.wikipedia.org/wiki//dev/random >-- (Explanation) https://en.wikipedia.org/wiki/RDRAND >-- (Explanation) https://en.wikipedia.org/wiki/HKDF (??WE HAVE A FLASH DRIVE WITH BACKUPS ON THE ADMIN'S NECK??) >======================================================================================== > In addition to encrypting files, a lot of data has been downloaded from your network. > If you don't write to us, within a week or two your name will end up on our > blog with example of important data. >======================================================================================== (??CAN WE TRUST HACKERS??) >======================================================================================== > If you come to our chat room, you can count on free decryption for three small files. > and examples of the downloaded data. >======================================================================================== (??WE DON'T HAVE VALUABLE DATA??) >======================================================================================== > We take a responsible approach to doing our job. > We have probably downloaded a lot of personal information from your servers, and could > cause you HUGE problems by publishing it. # Documents such as payroll, statements, contracts and others may contain valuable data, # the publication of which could lead to lawsuits. >======================================================================================== (??WILL THE POLICE HELP??) >======================================================================================== > DO NOT try to call the police as they will not save you from > publishing your data, nor will they help you get your files back, > they will only ban you from paying. >======================================================================================== (??WHAT IF I TRIED TO TRICK YOU???) >======================================================================================== > DO NOT modify the files, you may damage them and make it so > we can't help you. >======================================================================================== (??WHAT ABOUT THE ANONYMITY??) >======================================================================================== > We create unique links to anonymous chat for each company. > you don't have to worry, all the details of our deal will be kept secret. > We also have alternative ways to contact us if you are worried and do > not want to write in the panel. >======================================================================================== HOW TO CONTACT US: <=> Download Tor Browser (https://www.torproject.org/download) <=> Open it <=> Follow this link: http://mlnmlnnrdhcaddwll4zqvfd2vyqsgtgj473gjoehwna2v4sizdukheyd.onion/chat/f9e1d038b1f5220e888b56e97881937f (Also maybe you would like to visit our blog? Don't be shy!) <=> Blog: http://kyblogtz6k3jtxnjjvluee5ec4g3zcnvyvbgsnq5thumphmqidkt7xid.onion
URLs
  • http://mlnmlnnrdhcaddwll4zqvfd2vyqsgtgj473gjoehwna2v4sizdukheyd.onion/chat/f9e1d038b1f5220e888b56e97881937f

  • http://kyblogtz6k3jtxnjjvluee5ec4g3zcnvyvbgsnq5thumphmqidkt7xid.onion

Targets

    • Target
      4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29.exe
    • Size 1.8MB
    • SHA256 4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29
    • MD5 SHA1 SHA512 SSDEEP
    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Renames multiple (2666) 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.

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Reads user/profile data of web browsers

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks