General

  • Target

    3899f16e30129406a4a0858f6f16c66c.exe

  • Size

    63KB

  • Sample

    240105-nvxszaagcq

  • MD5

    3899f16e30129406a4a0858f6f16c66c

  • SHA1

    2bac48457a15908d400c06f8dff0ccf87ec4fc7e

  • SHA256

    115e7f579b456e7ffe1b611eec0f1fc3223b1a564c230ccdae23eccaa5144c91

  • SHA512

    7b2aaff22d07394b8a07484c03be473e3f108d3245fee663e5d6990e5c510490e35592bd45906373043a452b2891e610dcc06f0fa5ac313342610298a68e0b02

  • SSDEEP

    1536:dv927G7dcJq4Ir36jXFEZbFo5q7NGf5EK8AMdjejx5bmWhnouy8km:V927gdcJ636jXFEZbRRdje9/Boutkm

Malware Config

Targets

    • Target

      3899f16e30129406a4a0858f6f16c66c.exe

    • Size

      63KB

    • MD5

      3899f16e30129406a4a0858f6f16c66c

    • SHA1

      2bac48457a15908d400c06f8dff0ccf87ec4fc7e

    • SHA256

      115e7f579b456e7ffe1b611eec0f1fc3223b1a564c230ccdae23eccaa5144c91

    • SHA512

      7b2aaff22d07394b8a07484c03be473e3f108d3245fee663e5d6990e5c510490e35592bd45906373043a452b2891e610dcc06f0fa5ac313342610298a68e0b02

    • SSDEEP

      1536:dv927G7dcJq4Ir36jXFEZbFo5q7NGf5EK8AMdjejx5bmWhnouy8km:V927gdcJ636jXFEZbRRdje9/Boutkm

    • Modifies firewall policy service

    • Modifies security service

    • Modifies visibility of file extensions in Explorer

    • Modifies visiblity of hidden/system files in Explorer

    • UAC bypass

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Sets file execution options in registry

    • 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.

    • UPX packed file

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

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks