Overview

overview

9

Static

static

3

Chimera-setup.exe

windows10-2004-x64

9

Chimera-setup.exe

windows11-ltsc_2024-x64

1

Sharing

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General

  • Target
    Chimera-setup.exe
  • Size 33.5MB
  • Sample261107-xeqjdset7y
  • SHA256 4d534abb91cbafed0bd49abce72007d54303168caed0823b32565d9648bbf624
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
bootkitdefense_evasiondiscoverypersistencetrojan

Malware Config

Targets

    • Target
      Chimera-setup.exe
    • Size 33.5MB
    • SHA256 4d534abb91cbafed0bd49abce72007d54303168caed0823b32565d9648bbf624
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    bootkitdefense_evasiondiscoverypersistencetrojan

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Checks BIOS information in registry

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

    • 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.

      discovery

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Suspicious use of NtSetInformationThreadHideFromDebugger

      defense_evasion
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks