Overview

overview

8

Static

static

MediaCreat...09.exe

windows7_x64

8

MediaCreat...09.exe

windows10_x64

8

Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    12-09-2020 01:31

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General

  • Target

    MediaCreationTool1909.exe

  • Size

    18.4MB

  • MD5

    d0ba2b1c91124ee4a250c6c53f545f1f

  • SHA1

    0352292fc21c8dd442358f2ff4fa8eded01b7dca

  • SHA256

    8237794f0fffb298040ed59045b679579fa6e1b66703ec2bf5353e71499c663e

  • SHA512

    99d45e22f36f15777e789e54d6a5410a335bd344d009d863afd3c35ce53a6f4811b7e40f912b6da35725e121fff11e51a3fb9659a45a2f7701afc9ab407d7399

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 17 IoCs
  • JavaScript code in executable 4 IoCs
  • Drops file in Windows directory 5 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\MediaCreationTool1909.exe
    "C:\Users\Admin\AppData\Local\Temp\MediaCreationTool1909.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3948
    • C:\$Windows.~WS\Sources\SetupHost.Exe
      "C:\$Windows.~WS\Sources\SetupHost.Exe" /Download /Web
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Loads dropped DLL
      • Drops file in Windows directory
      • Checks processor information in registry
      • NTFS ADS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\$Windows.~WS\Sources\DiagTrackRunner.exe
        C:\$Windows.~WS\Sources\DiagTrackRunner.exe /UploadEtlFilesOnly
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:2184
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1712

    Network

    MITRE ATT&CK Enterprise v6

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    Downloads