Resubmissions

01/02/2024, 02:24

240201-cv4ezahcf5 8

01/02/2024, 02:24

240201-cvzf1sbcck 1

01/02/2024, 02:24

240201-cvsngahce9 1

General

  • Target

    Roblox Player.lnk

  • Size

    1KB

  • Sample

    240201-cv4ezahcf5

  • MD5

    e4a65a0f0e6b0bba7b36d2aaa1a6b60e

  • SHA1

    84c0842ba16d88efacced22ec5264953bd830733

  • SHA256

    ca029a54887828a7ba3325809461805b46788bb77b7eb9ca9b4b5a8d4470e501

  • SHA512

    b3390f958981c933c09df598eb77949914c1eeba065e6dd3a6fbafbe8d2742e702775c637301d78bd88491a933f1ac1e731f1d513dd0c4b7843ffbbd75ed96cd

Malware Config

Targets

    • Target

      Roblox Player.lnk

    • Size

      1KB

    • MD5

      e4a65a0f0e6b0bba7b36d2aaa1a6b60e

    • SHA1

      84c0842ba16d88efacced22ec5264953bd830733

    • SHA256

      ca029a54887828a7ba3325809461805b46788bb77b7eb9ca9b4b5a8d4470e501

    • SHA512

      b3390f958981c933c09df598eb77949914c1eeba065e6dd3a6fbafbe8d2742e702775c637301d78bd88491a933f1ac1e731f1d513dd0c4b7843ffbbd75ed96cd

    • Downloads MZ/PE file

    • 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.

    • 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.

    • Registers COM server for autorun

    • Adds Run key to start application

    • 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