General

  • Target
    99b8962d32d011802dfa8c8aafaf2c1464fa80d9fb107f7fe1abe7005b5af2cf.bin.sample.gz
  • Size 173KB
  • Sample221209-j23kkscf87
  • SHA256 90b23c1d63e4c8653e17a75f0eb2921b5190b6635fa49effe00e06d429f6d7a2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\$Recycle.Bin\S-1-5-21-4063495947-34355257-727531523-1000\HOW TO DECRYPT FILES.txt

Ransom Note
  • Ooops, your files have been encrypted! -What Happen to my computer? Your important files are encrypted Many of your documents , photos , passwords , databases and other files are no longer accessible because they have been encrypted . Maybe you are busy looking for way to recover your files , but do not waste your time . Nobody can recover your files without our decryption KEY -Can i Recover My Files? Sure.We guarantee that you can recover all your files safely and easlly But You have not so enough time . So If you want to decrypt all your files, you need to pay . You only have 12H to submit the payment.After that price will be doubled Also, If the transaction is not completed within 24 hours your files will be permanently deleted. How To buy bitcoins https://www.bitcoin.com/buy-bitcoin And Send the the correct amount to this address 0.05 BTC 17pXroP4MruitJzpTa88FAPAGD5q5QAPzb
Wallets
  • 17pXroP4MruitJzpTa88FAPAGD5q5QAPzb

URLs
  • https://www.bitcoin.com/buy-bitcoin

Targets

    • Target
      sample
    • Size 265KB
    • SHA256 99b8962d32d011802dfa8c8aafaf2c1464fa80d9fb107f7fe1abe7005b5af2cf
    • MD5 SHA1 SHA512 SSDEEP
    • Detected Xorist Ransomware

    • Xorist Ransomware

      Xorist is a ransomware first seen in 2020.

    • Drops file in Drivers directory

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • UPX packed file

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

    • Drops startup file

    • 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 file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks