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General

  • Target

    17b33dcdde306525f9dd0bce6b1b88dd

  • Size

    484KB

  • Sample

    231225-mnrspsgec9

  • MD5

    17b33dcdde306525f9dd0bce6b1b88dd

  • SHA1

    d26781a26a1fd95cd6f59b4a1da7983062175695

  • SHA256

    59f828a2ac3c9211c1f4108053106b4747fd0f5beec37480ac500beb1f213c62

  • SHA512

    cb9374d93f274aa6eac44b7243473e0791ff942776aae5fcd4aa6aea6ba1b1ca1b0a3724ade7c0619ce191c79da975e558b3f1077b38afcbbc0ee583e73f7462

  • SSDEEP

    12288:twZYOWYidkkN4mSDGHfL+ewv3dkZ54Med6rjNJ:yYOWF3GAwdkZbU6nNJ

Malware Config

Targets

    • Target

      17b33dcdde306525f9dd0bce6b1b88dd

    • Size

      484KB

    • MD5

      17b33dcdde306525f9dd0bce6b1b88dd

    • SHA1

      d26781a26a1fd95cd6f59b4a1da7983062175695

    • SHA256

      59f828a2ac3c9211c1f4108053106b4747fd0f5beec37480ac500beb1f213c62

    • SHA512

      cb9374d93f274aa6eac44b7243473e0791ff942776aae5fcd4aa6aea6ba1b1ca1b0a3724ade7c0619ce191c79da975e558b3f1077b38afcbbc0ee583e73f7462

    • SSDEEP

      12288:twZYOWYidkkN4mSDGHfL+ewv3dkZ54Med6rjNJ:yYOWF3GAwdkZbU6nNJ

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (56) 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.

    • Deletes itself

    • 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

    • Checks whether UAC is enabled

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks