General

  • Target

    Zyron.exe

  • Size

    20.1MB

  • Sample

    240531-vtcvqsfg83

  • MD5

    c93e65b8b3bdf4651aa5f33fbaf6487d

  • SHA1

    fa44cc02066d7e384224ce22ea2c7e37604e6d17

  • SHA256

    a8474496d6a2d25d7e3c34cb41e22417b59ca58f7c94b514492a85bbcb969f30

  • SHA512

    2ab77d13631d77774bafbc9ad70854fd1c31c3ade62e11ec872b6dd05baa9996c5408ddbe822a714f25ba893bc34839d23cc6cb41394d02bfa38f422c06076cd

  • SSDEEP

    196608:Jri7DEziLjv+bhqNVoB8Ck5c7GpNlpq41J29bk9qtlDfqWf:YTL+9qz88Ck+7q3p91JBqfqWf

Malware Config

Targets

    • Target

      Zyron.exe

    • Size

      20.1MB

    • MD5

      c93e65b8b3bdf4651aa5f33fbaf6487d

    • SHA1

      fa44cc02066d7e384224ce22ea2c7e37604e6d17

    • SHA256

      a8474496d6a2d25d7e3c34cb41e22417b59ca58f7c94b514492a85bbcb969f30

    • SHA512

      2ab77d13631d77774bafbc9ad70854fd1c31c3ade62e11ec872b6dd05baa9996c5408ddbe822a714f25ba893bc34839d23cc6cb41394d02bfa38f422c06076cd

    • SSDEEP

      196608:Jri7DEziLjv+bhqNVoB8Ck5c7GpNlpq41J29bk9qtlDfqWf:YTL+9qz88Ck+7q3p91JBqfqWf

    • Modifies visiblity of hidden/system files in Explorer

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks