Resubmissions

23/06/2026, 11:44

260623-nv94asct2r9

23/06/2026, 11:41

260623-ntvbfsct2k9

General

  • Target
    ObsidianLoader.exe
  • Size 339KB
  • Sample260623-ntvbfsct2k
  • SHA256 f13810446d0a05b3a98d134f6d41cb3d5dd0e010949482199f655e931ee40d73
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      ObsidianLoader.exe
    • Size 339KB
    • SHA256 f13810446d0a05b3a98d134f6d41cb3d5dd0e010949482199f655e931ee40d73
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks