Overview

overview

8

Static

static

3

UltraUXThe....1.exe

windows10-2004-x64

$PLUGINSDI...re.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...rd.bmp

windows10-2004-x64

1

$PLUGINSDI...gs.dll

windows10-2004-x64

3

$PLUGINSDI...le.dll

windows10-2004-x64

3

$TEMP/image.bmp

windows10-2004-x64

1

Analysis

  • user interaction
    yes
  • max time kernel
    38s
  • max time network
    39s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/10/2026, 14:03

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Errors

Reason
Machine shutdown

General

  • Target
    UltraUXThemePatcher_4.6.1.exe
  • Size 159KB
  • Sample261025-rc5yeahw8l
  • SHA256 1fc8dca765dec7cf55571d81bc9fc442d53dc381c7474394b928379f36f87993
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
defense_evasiondiscoveryexploitransomware

Malware Config

Signatures

  • Possible privilege escalation attempt 6 IoCs
    exploit
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 18 IoCs
  • Modifies file permissions 1 TTPs 6 IoCs
    discovery
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
    defense_evasion
  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\UltraUXThemePatcher_4.6.1.exe
    "C:\Users\Admin\AppData\Local\Temp\UltraUXThemePatcher_4.6.1.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:8
    • C:\Windows\system32\takeown.exe
      "C:\Windows\system32\takeown.exe" /f "C:\Windows\system32\themeui.dll"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4952
    • C:\Windows\system32\icacls.exe
      "C:\Windows\system32\icacls.exe" "C:\Windows\system32\themeui.dll" /grant Admin:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3864
    • C:\Windows\system32\takeown.exe
      "C:\Windows\system32\takeown.exe" /f "C:\Windows\system32\themeui.dll"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:5616
    • C:\Windows\system32\takeown.exe
      "C:\Windows\system32\takeown.exe" /f "C:\Windows\system32\uxinit.dll"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4196
    • C:\Windows\system32\icacls.exe
      "C:\Windows\system32\icacls.exe" "C:\Windows\system32\uxinit.dll" /grant Admin:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:932
    • C:\Windows\system32\takeown.exe
      "C:\Windows\system32\takeown.exe" /f "C:\Windows\system32\uxinit.dll"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:5476
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:2432
  • C:\Windows\system32\srtasks.exe
    C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2976
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa38dd855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:5000

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        SysRestore.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsrEDA9.tmp\SysRestore.dll
        • Size 5KB
        • SHA256 c686b4df9b4db50fc1ddb7be4cd50d4b1d75894288f4dc50571b79937d7c0d7e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        System.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsrEDA9.tmp\System.dll
        • Size 12KB
        • SHA256 996645d7f16a6294babb6da83478062aed7b72318d7a51b66e90ab5d3edc51a5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        modern-wizard.bmp
        • Path C:\Users\Admin\AppData\Local\Temp\nsrEDA9.tmp\modern-wizard.bmp
        • Size 201KB
        • SHA256 aea40659bdb08337064640ea8b4f171881d37456b37b3e2899349ac04f0889c5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nsDialogs.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsrEDA9.tmp\nsDialogs.dll
        • Size 9KB
        • SHA256 715a9b58de0995d1a08384c522ad9af210e2791aaf8e87a6c07bfe72ebfd2cb5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nsisFile.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsrEDA9.tmp\nsisFile.dll
        • Size 5KB
        • SHA256 a820a32e5ce89e3e336afc71aa1bf42a357ec542c2bc6e50c6255c1333812587
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        themeui.dll.new
        • Path C:\Windows\System32\themeui.dll.new
        • Size 390KB
        • SHA256 92a14426f42ccfccc2f9f78442f73e110922a882e6734bca6d5b744b2ad77ddb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        uxinit.dll.new
        • Path C:\Windows\System32\uxinit.dll.new
        • Size 121KB
        • SHA256 e869c12351a31740b190ede9ffb6b622fb7423ecee67ed47d575f1dd1e7da1b6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download