General

  • Target
    BQT.exe
  • Size 8.5MB
  • Sample260727-z13f7asvas
  • SHA256 9600db537e27db88ed2eca3be0ffab35cdb22a86a6dbb048d8deaf8f56944822
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Path
  • F:\$RECYCLE.BIN\S-1-5-21-1074038928-2032447174-945360078-1000\README_TO_DECRYPT.txt

Ransom Note
  • YOUR FILES ARE ENCRYPTED! your files are not deleted but they are hidden to see them use cmd.exe and dir /a To recover your files, send 10 xmr to the following address:89RQN2EUmiX6vL7nTv3viqUAgbDpN4ab329zPCEgbceQJuS233uye4eXtYk3MXAtVoKNMmzgVrxXphLZbJPtearY7QVuApr After payment, send your HWID and transaction ID to: [email protected] we send you a decryptor and key DO NOT try to decrypt files yourself or use third-party tools, this will lead to permanent data loss.

Targets

    • Target
      BQT.exe
    • Size 8.5MB
    • SHA256 9600db537e27db88ed2eca3be0ffab35cdb22a86a6dbb048d8deaf8f56944822
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: BQTLock

      BQTLock is a cross-platform ransomware that operates under a Ransomware-as-a-Service model.

    • Renames multiple (188) files with added filename extension

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Reads user/profile data of web browsers

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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks