Overview

overview

9

Static

static

8

CODE.DIGIT...ñ.msi

windows7_x64

9

CODE.DIGIT...ñ.msi

windows10_x64

9

Sharing

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General

  • Target
    CODE.DIGITAL.KZNGYCOECNEYDMTNXLITPYJRSCOSVTñ.msi
  • Size 282KB
  • Sample210802-yc9pjzl346
  • SHA256 427804c962d63a68e833840acfc268ad58583b2182caecb02ec5d0f53fcb891f
  • MD5 SHA1 SHA512
Score
9/10
bootkitevasionmacropersistencethemidatrojanxlm

Malware Config

Targets

    • Target
      CODE.DIGITAL.KZNGYCOECNEYDMTNXLITPYJRSCOSVTñ.msi
    • Size 282KB
    • SHA256 427804c962d63a68e833840acfc268ad58583b2182caecb02ec5d0f53fcb891f
    • MD5 SHA1 SHA512
    Score
    9/10
    bootkitevasionpersistencethemidatrojan

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

      evasion

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Drops startup file

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Enumerates connected drives

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks