General

  • Target
    Nivex Loader Fn(3).rar
  • Size 6.4MB
  • Sample260808-1arsfayybz
  • SHA256 a147b7be277ace33e44c9da48f4eda1861a73c141477a49d3c57dc294ac5ed37
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Nivex Loader Fn(3).rar
    • Size 6.4MB
    • SHA256 a147b7be277ace33e44c9da48f4eda1861a73c141477a49d3c57dc294ac5ed37
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • 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

    • Target
      Nivex Loader Fn/AppleCleaner.exe
    • Size 4.1MB
    • SHA256 18dd5e7967a46e933cf61f4a46efd5c7230fddd3097647050d7a39828f1fa354
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      Nivex Loader Fn/Nivex FN Spoofer.exe
    • Size 2.5MB
    • SHA256 a1b2567218e50eeb25df8d7693f74b1abeadd5443adb612d3aef5806aa8144ae
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks