General

  • Target

    RNSM00403.7z

  • Size

    60.6MB

  • Sample

    241030-1hdwjs1hna

  • MD5

    f61f92161d115bc21c47483258803ca7

  • SHA1

    56c8ce8f2a6104b40f1a88d1b42f083dad7a9de9

  • SHA256

    8aeb260c2e350147f992e73b8f6fedba94fd04d12e8a2ba3e4ec8500baa13830

  • SHA512

    25e5061c1ed6c457c7f46bad5f19b27369dc4409f40c02bc2f63e39d102aa54a1ed7532018ef8a8c3469e574daf1c6ba8160c24ea5efbeaa8f5b97dfc63fe173

  • SSDEEP

    1572864:xLROHSmpHJN4vOB7FHXhWZHEvM33yiUY92Y3FCC7m9tx3Yrr:NROySTWw+yvwita2E7+tx3YP

Malware Config

Extracted

Family

mespinoza

Attributes
  • ransomnote

    Hi Company, Every byte on any types of your devices was encrypted. Don't try to use backups because it were encrypted too. To get all your data back contact us: [email protected] [email protected] -------------- FAQ: 1. Q: How can I make sure you don't fooling me? A: You can send us 2 files(max 2mb). 2. Q: What to do to get all data back? A: Don't restart the computer, don't move files and write us. 3. Q: What to tell my boss? A: Protect Your System Amigo.

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-3227495264-2217614367-4027411560-1000\Readme.README

Ransom Note
Hi Company, Every byte on any types of your devices was encrypted. Don't try to use backups because it were encrypted too. To get all your data back contact us: [email protected] [email protected] -------------- FAQ: 1. Q: How can I make sure you don't fooling me? A: You can send us 2 files(max 2mb). 2. Q: What to do to get all data back? A: Don't restart the computer, don't move files and write us. 3. Q: What to tell my boss? A: Protect Your System Amigo.

Extracted

Path

C:\Program Files (x86)\readme.txt

Family

conti

Ransom Note
All of your files are currently encrypted by CONTI strain. As you know (if you don't - just "google it"), all of the data that has been encrypted by our software cannot be recovered by any means without contacting our team directly. If you try to use any additional recovery software - the files might be damaged, so if you are willing to try - try it on the data of the lowest value. To make sure that we REALLY CAN get your data back - we offer you to decrypt 2 random files completely free of charge. You can contact our team directly for further instructions through our website : TOR VERSION : (you should download and install TOR browser first https://torproject.org) http://m232fdxbfmbrcehbrj5iayknxnggf6niqfj6x4iedrgtab4qupzjlaid.onion HTTPS VERSION : https://contirecovery.info YOU SHOULD BE AWARE! Just in case, if you try to ignore us. We've downloaded a pack of your internal data and are ready to publish it on out news website if you do not respond. So it will be better for both sides if you contact us as soon as possible. ---BEGIN ID--- mEL9Y7SC22f1JfKAJi5NlYC2aVZ82ImX9nR568r2hXw9tn1weDwEc8s2r2thduYr ---END ID---
URLs

http://m232fdxbfmbrcehbrj5iayknxnggf6niqfj6x4iedrgtab4qupzjlaid.onion

https://contirecovery.info

Extracted

Path

C:\Recovery\README.d96d1f6d.TXT

Family

darkside

Ransom Note
----------- [ Welcome to Dark ] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - universal decryptor. This program will restore all your network. Follow our instructions below and you will recover all your data. Data leak ---------------------------------------------- First of all we have uploaded more then 100 GB data. Example of data: - Accounting data - Executive data - Sales data - Customer Support data - Marketing data - Quality data - And more other... Your personal leak page: http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC The data is preloaded and will be automatically published if you do not pay. After publication, your data will be available for at least 6 months on our tor cdn servers. We are ready: - To provide you the evidence of stolen data - To give you universal decrypting tool for all encrypted files. - To delete all the stolen data. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to get access on website? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://darksidfqzcuhtk2.onion/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68 When you open our website, put the following data in the input form: Key: pr9gzRnMz6qEwr6ovMT0cbjd9yT56NctfQZGIiVVLgo0ME2EQpAUyZucG9BLrOJjno5XLPvCN11TFfnlFHa42u5mJxoeR5k5RUgQAC1MC6LBUj4YOOAUyiBrR HQSUM3pzGoEPRVOzXSZ8YqkJyFL0TDFBbWaBKQDOSo9GzKKoVRQ0Eb02F5geTPkTAqZZSfSQ6PBBlTGPSgGe2kCyuwwp7lDmRSJlNnHssMMZHVhXzyZ6fxiBY gNiuusFK8JNI5nrtRPp3bMAc6OEddxfJWj6o2GT1Xg9j87Jp4Oyv43E1J61jLJAWBkmoBB3Gqv07mtyDW5PnmxBlNzABbLFEvJMQL23sR8nnw4svzcZHxrqD1 xRcxqyeKtsaQ5yqLvyQgMdnrI2QoCqkHYYUfBIzjO8BXyBZdmjHanXE57jdDAhjaDUUqfL917cCyJr1uwVR0Xj5lJXe8BIKHd3dFrz70CsIXFAhicOsBlFzIn daNcAXXyL8Fg1avIXOcuEkGRDXt8Cs8b3TAB6n4DrbLJdiFjECo8yCA9pxvzqjXatumUloblWFZaUoLVYzP !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC

http://darksidfqzcuhtk2.onion/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68

Extracted

Path

C:\Program Files\Crashpad\attachments\Restore-My-Files.txt

Family

lockbit

Ransom Note
All your important files are encrypted! Any attempts to restore your files with the thrid-party software will be fatal for your files! RESTORE YOU DATA POSIBLE ONLY BUYING private key from us. There is only one way to get your files back: 1) Through a standard browser(FireFox, Chrome, Edge, Opera) | 1. Open link http://lockbit-decryptor.top/?8841DD9B0AC925FF9D181C92893BBBCE | 2. Follow the instructions on this page 2) Through a Tor Browser - recommended | 1. Download Tor browser - https://www.torproject.org/ and install it. | 2. Open link in TOR browser - http://lockbitks2tvnmwk.onion/?8841DD9B0AC925FF9D181C92893BBBCE This link only works in Tor Browser! | 3. Follow the instructions on this page ### Attention! ### # lockbit-decryptor.top may be blocked. We recommend using a Tor browser to access the site # Do not rename encrypted files. # Do not try to decrypt using third party software, it may cause permanent data loss. # Decryption of your files with the help of third parties may cause increased price(they add their fee to our). # Tor Browser may be blocked in your country or corporate network. Use https://bridges.torproject.org or use Tor Browser over VPN. # Tor Browser user manual https://tb-manual.torproject.org/about
URLs

http://lockbit-decryptor.top/?8841DD9B0AC925FF9D181C92893BBBCE

http://lockbitks2tvnmwk.onion/?8841DD9B0AC925FF9D181C92893BBBCE

Targets

    • Target

      RNSM00403.7z

    • Size

      60.6MB

    • MD5

      f61f92161d115bc21c47483258803ca7

    • SHA1

      56c8ce8f2a6104b40f1a88d1b42f083dad7a9de9

    • SHA256

      8aeb260c2e350147f992e73b8f6fedba94fd04d12e8a2ba3e4ec8500baa13830

    • SHA512

      25e5061c1ed6c457c7f46bad5f19b27369dc4409f40c02bc2f63e39d102aa54a1ed7532018ef8a8c3469e574daf1c6ba8160c24ea5efbeaa8f5b97dfc63fe173

    • SSDEEP

      1572864:xLROHSmpHJN4vOB7FHXhWZHEvM33yiUY92Y3FCC7m9tx3Yrr:NROySTWw+yvwita2E7+tx3YP

    • Conti Ransomware

      Ransomware generally thought to be a successor to Ryuk.

    • Conti family

    • DarkSide

      Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.

    • Darkside family

    • DemonWare

      Ransomware first seen in mid-2020.

    • Demonware family

    • GandCrab payload

    • Gandcrab

      Gandcrab is a Trojan horse that encrypts files on a computer.

    • Gandcrab family

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba family

    • Lockbit

      Ransomware family with multiple variants released since late 2019.

    • Lockbit family

    • Mespinoza Ransomware

      Also known as Pysa. Ransomware-as-a-servoce which first appeared in 2020.

    • Mespinoza family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Modifies boot configuration data using bcdedit

    • Renames multiple (1592) files with added filename extension

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

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Drops startup file

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • 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.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks