General

  • Target

    RobloxPlayerInstaller.exe

  • Size

    5.5MB

  • Sample

    240722-plcxwaxcjb

  • MD5

    87e3d886a3716e6ca0370324c8599553

  • SHA1

    9c0f902dcac08193d13990b2c46702ce1ddeb3a7

  • SHA256

    a1d6267bcdc07ab4d900111ee56102d95f2aa1ca5f3a052cb7c11945e0ffba48

  • SHA512

    860a67582c4cd2df7fe1c21307450356ca8270b448fdb96de957a5af5f6b38c87da84f47cfceb91804afdec693d52029bb7151e02a753793889daf4ff4779a25

  • SSDEEP

    98304:edv4xixgrOYvLtWV9SxAPZl+RqgSRe4rcSRhE1RKsJgHXe8WDuLNzTf:M4QqrvvySshgSsR/mOdANP

Malware Config

Targets

    • Target

      RobloxPlayerInstaller.exe

    • Size

      5.5MB

    • MD5

      87e3d886a3716e6ca0370324c8599553

    • SHA1

      9c0f902dcac08193d13990b2c46702ce1ddeb3a7

    • SHA256

      a1d6267bcdc07ab4d900111ee56102d95f2aa1ca5f3a052cb7c11945e0ffba48

    • SHA512

      860a67582c4cd2df7fe1c21307450356ca8270b448fdb96de957a5af5f6b38c87da84f47cfceb91804afdec693d52029bb7151e02a753793889daf4ff4779a25

    • SSDEEP

      98304:edv4xixgrOYvLtWV9SxAPZl+RqgSRe4rcSRhE1RKsJgHXe8WDuLNzTf:M4QqrvvySshgSsR/mOdANP

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Installs/modifies Browser Helper Object

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

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks