Analysis

  • max time kernel
    1733s
  • max time network
    1144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 18:59

General

  • Target

    nkt_loader.exe

  • Size

    11.1MB

  • MD5

    0b2c44818a4ea56d9a9605f212caa43b

  • SHA1

    220a614fa0e8e2893764898365855731180ec80c

  • SHA256

    de7ebab6e655913a5606ed9c516e45a0c4b351a09de7625a0c446e509750b07b

  • SHA512

    7bec96253914353ca10856d7c5368ae7ec6c524e7c068482a39024706de6382699483afe363ededf7423f66b145129ac7c6db987b5d7aa30462a8e4ee3045c4d

  • SSDEEP

    196608:sr2y067U17MASS+VV7YY2syQ4kz7KZL22D4pnxlu78ZxTUlXa:a2y0H7MI67YkyBk82E493uw/TUk

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\nkt_loader.exe
    "C:\Users\Admin\AppData\Local\Temp\nkt_loader.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:4400

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4400-0-0x0000000000400000-0x0000000000ACB000-memory.dmp

          Filesize

          6.8MB

        • memory/4400-1-0x0000000077DB4000-0x0000000077DB6000-memory.dmp

          Filesize

          8KB

        • memory/4400-2-0x0000000000400000-0x0000000000ACB000-memory.dmp

          Filesize

          6.8MB

        • memory/4400-4-0x0000000000400000-0x0000000000ACB000-memory.dmp

          Filesize

          6.8MB