General
- Target 4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29.exe
- Size 1.8MB
- Sample260430-c45dmad19j
- SHA256 4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29
- MD5 18498b1ff111ee9d9a037c280f75b720
- SHA1 0e9a47782e39741a2c161bf639252d33ad3a428a
- SHA512 c578122532d223d55a752f89bc72a22127e791d967728cbd527df54cd5aac1471642183aa4a29f310646679eb753919a2ac02b9b51437bb504dd48e24211d80a
- SSDEEP 24576:jZgTpNZ+WIp82mx6gq+Jn5tNj32+t40VzQJSGR8cknOuP3S+hpDTFMs2UWz7vs75:WbnbdG+t40VzMSGR8zdpDTKs2N7YJlF
- TLSH T183953B52BA6F99BCD096C471C3064A736E21B4CB0777B9FB028451383E79BE15B3CA19
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29.exe
Resource
win11-20260130-en
21 signatures
300 seconds
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
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http://mlnmlnnrdhcaddwll4zqvfd2vyqsgtgj473gjoehwna2v4sizdukheyd.onion/chat/f9e1d038b1f5220e888b56e97881937f
-
http://kyblogtz6k3jtxnjjvluee5ec4g3zcnvyvbgsnq5thumphmqidkt7xid.onion
Targets
-
- Target 4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29.exe
- Size 1.8MB
- SHA256 4ed176edb75ae2114cda8cfb3f83ac2ecdc4476fa1ef30ad8c81a54c0a223a29
- MD5 18498b1ff111ee9d9a037c280f75b720
- SHA1 0e9a47782e39741a2c161bf639252d33ad3a428a
- SHA512 c578122532d223d55a752f89bc72a22127e791d967728cbd527df54cd5aac1471642183aa4a29f310646679eb753919a2ac02b9b51437bb504dd48e24211d80a
- SSDEEP 24576:jZgTpNZ+WIp82mx6gq+Jn5tNj32+t40VzQJSGR8cknOuP3S+hpDTFMs2UWz7vs75:WbnbdG+t40VzMSGR8zdpDTKs2N7YJlF
- TLSH T183953B52BA6F99BCD096C471C3064A736E21B4CB0777B9FB028451383E79BE15B3CA19
- MD5 SHA1 SHA512 SSDEEP TLSH
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit
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Renames multiple (2891) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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Drops startup file
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Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
2