Resubmissions

31/03/2024, 14:31

240331-rvsqssde3x10

20/03/2024, 06:31

240320-g98qfsbc7110

General

  • Target
    2024-03-20_f637065576c46fdf526f6156a06a8102_wannacry
  • Size 294KB
  • Sample240331-rvsqssde3x
  • SHA256 b08d4f13f88946dbc97537569f4516ddf832c36d4636501abbad24f505904222
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\Users\Admin\Documents\read_it.txt

Ransom Note
  • Hello :) All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help. What can I do to get my files back? You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer. The price for the software is $300. Payment can be made in Monero only. How do I pay, where do I get Monero? Purchasing Monero varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinbase - https://www.coinbase.com/how-to-buy/monero Payment informationAmount: $300 in XMR Monero Address: 43fpjf8X9jDZjmA3wwdd695ZwZCmFyTtWaPGkfwWv66UhVX2b24wXy7QCEJYVVFP98Wb6oRcdUgXjE1tk1s669LmQ6RzXGq (IF YOU TRY TO DELETE THIS RANSOMWARE OR USE AND THIRD PART TOOLS TO TRY AND FIX IT, ALL OF YOUR FILES WILL BE GONE FOREVER!) (YOU HAVE 24 HOURS TO SEND THE FUNDS! OR ELSE ALL OF YOUR PERSONAL FILES/DATA ON THIS COMPUTER WILL BE DELETED FROM YOUR SYSTEM AND SOLD ON THE DARK WEB)

Targets

    • Target
      2024-03-20_f637065576c46fdf526f6156a06a8102_wannacry
    • Size 294KB
    • SHA256 b08d4f13f88946dbc97537569f4516ddf832c36d4636501abbad24f505904222
    • MD5 SHA1 SHA512 SSDEEP
    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • 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

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks