Overview

overview

9

Static

static

1

NzIrqD.html

windows10-2004-x64

9

NzIrqD.html

windows11-ltsc_2024-x64

3

Sharing

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General

  • Target
    NzIrqD
  • Size 11KB
  • Sample260727-r5raqagm2x
  • SHA256 d311a4f486e2f81d1ffb11b37782d8bc1325b1df96ff21ab3b3de818ae3d5d84
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
adwaredefense_evasiondiscoveryspywarethemidatrojan

Malware Config

Targets

    • Target
      NzIrqD
    • Size 11KB
    • SHA256 d311a4f486e2f81d1ffb11b37782d8bc1325b1df96ff21ab3b3de818ae3d5d84
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    adwaredefense_evasiondiscoveryspywarethemidatrojan

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

      defense_evasion

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • 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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks