Resubmissions

04/02/2024, 21:35

240204-1fn9haddbl 6

04/02/2024, 21:31

240204-1c8hzadccp 6

General

  • Target

    RobloxPlayerInstaller.exe

  • Size

    4.5MB

  • Sample

    240204-1fn9haddbl

  • MD5

    32941ed3588da058b120375bbe77c6d8

  • SHA1

    4fc873c3200a65205053d2d04989b407df0ade70

  • SHA256

    8f3fe55480388b43e385ca4e240f77cae90b37c4da3285af3da76495c7f4c440

  • SHA512

    19ee5c5c0ceacca7bcc4ca7d41026da6525d2771d33cefd5a8511c5b922d98d8c281a6ae794a4e1d73efd8c4831daf7e7854744b051a191e2c4a1f495ab21d83

  • SSDEEP

    98304:nwveaNoe1sGM8cRSMDtLRDgcaV2RDnYsKxS0S4Obkm:YTNnm85sgcX50/OJ

Malware Config

Targets

    • Target

      RobloxPlayerInstaller.exe

    • Size

      4.5MB

    • MD5

      32941ed3588da058b120375bbe77c6d8

    • SHA1

      4fc873c3200a65205053d2d04989b407df0ade70

    • SHA256

      8f3fe55480388b43e385ca4e240f77cae90b37c4da3285af3da76495c7f4c440

    • SHA512

      19ee5c5c0ceacca7bcc4ca7d41026da6525d2771d33cefd5a8511c5b922d98d8c281a6ae794a4e1d73efd8c4831daf7e7854744b051a191e2c4a1f495ab21d83

    • SSDEEP

      98304:nwveaNoe1sGM8cRSMDtLRDgcaV2RDnYsKxS0S4Obkm:YTNnm85sgcX50/OJ

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Downloads MZ/PE file

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks