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General

  • Target

    NEAS.028b25f1f0a537977493d76f32a80570.exe

  • Size

    722KB

  • Sample

    231107-tdr42sch68

  • MD5

    028b25f1f0a537977493d76f32a80570

  • SHA1

    a442c83bbc521d8d77671ab83fd0edeab710c115

  • SHA256

    6ea019b1198f52147a2871899c9571f75057c2de6b86dd374f4c297a977dab2f

  • SHA512

    4cfca4044d1cb37cbb91ed72490b615ef3514bb52db48ea20d451bcc6aefba9c50b6a476e5e2bde1b6bac64633444dbcf3f4da1a1877733b38a1e526f88bea85

  • SSDEEP

    12288:GihV27JbZVpni7HSufIGzdl/3PaSQsCrX7KaURM5o4UV8Sq9HM++p9qy9u:uNZjnijBIcx35QZ7Oy5oN+9OEyU

Malware Config

Targets

    • Target

      NEAS.028b25f1f0a537977493d76f32a80570.exe

    • Size

      722KB

    • MD5

      028b25f1f0a537977493d76f32a80570

    • SHA1

      a442c83bbc521d8d77671ab83fd0edeab710c115

    • SHA256

      6ea019b1198f52147a2871899c9571f75057c2de6b86dd374f4c297a977dab2f

    • SHA512

      4cfca4044d1cb37cbb91ed72490b615ef3514bb52db48ea20d451bcc6aefba9c50b6a476e5e2bde1b6bac64633444dbcf3f4da1a1877733b38a1e526f88bea85

    • SSDEEP

      12288:GihV27JbZVpni7HSufIGzdl/3PaSQsCrX7KaURM5o4UV8Sq9HM++p9qy9u:uNZjnijBIcx35QZ7Oy5oN+9OEyU

    • Modifies WinLogon for persistence

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (51) files with added filename extension

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

    • Renames multiple (53) files with added filename extension

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

    • Checks computer location settings

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

    • 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.

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks