Overview

overview

10

Static

static

3

UXCryptor.exe

windows10-2004-x64

10

UXCryptor.exe

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/09/2026, 15:22

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General

  • Target
    UXCryptor.exe
  • Size 85KB
  • Sample260919-sr92casejh
  • SHA256 4962d4279e1ca8b1fc60342f7baa93811e9978c7d47f529dd11246f21ae3a8ac
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverypersistencetrojan

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • UAC bypass 3 TTPs 3 IoCs
    defense_evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    defense_evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
    defense_evasiontrojan
  • Drops file in System32 directory 2 IoCs
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 6 IoCs
    defense_evasion
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • System policy modification 1 TTPs 32 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\UXCryptor.exe
    "C:\Users\Admin\AppData\Local\Temp\UXCryptor.exe"
    1⤵
    • Modifies WinLogon for persistence
    • UAC bypass
    • Disables RegEdit via registry modification
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:552
    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Services\WinServicesHost.exe
      "C:\Users\Admin\AppData\Local\Microsoft\Windows\Services\WinServicesHost.exe" --watchdog
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4800
    • C:\Windows\SysWOW64\reagentc.exe
      reagentc.exe /disable
      2⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:1420
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c F: & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @MetroFramework 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      PID:5772
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c cd "%userprofile%\desktop" & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @MetroFramework 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      PID:2360
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c cd "%systemdrive%\Users\Public\Desktop" & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @MetroFramework 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      PID:2288
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c cd "%userprofile%\downloads" & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @MetroFramework 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      PID:3852
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c cd "%userprofile%\documents" & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @MetroFramework 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      PID:6084
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c cd "%userprofile%" & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @MetroFramework 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      PID:4044
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill.exe /f /im Explorer.exe
      2⤵
      • Kills process with taskkill
      PID:6088

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        2
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        2
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Defense Evasion

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Hide Artifacts

        1
        T1564

        Hidden Files and Directories

        1
        T1564.001

        Impair Defenses

        1
        T1562

        Disable or Modify Tools

        1
        T1562.001

        Modify Registry

        4
        T1112

        Credential Access

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        3
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        WinServicesHost.exe
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Services\WinServicesHost.exe
        • Size 85KB
        • SHA256 4962d4279e1ca8b1fc60342f7baa93811e9978c7d47f529dd11246f21ae3a8ac
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/552-6-0x0000000005CD0000-0x0000000005D26000-memory.dmp
        Download

        memory/552-2-0x0000000006040000-0x00000000065E4000-memory.dmp
        Download

        memory/552-3-0x0000000005B30000-0x0000000005BC2000-memory.dmp
        Download

        memory/552-4-0x0000000005CC0000-0x0000000005CD0000-memory.dmp
        Download

        memory/552-5-0x0000000005A90000-0x0000000005A9A000-memory.dmp
        Download

        memory/552-0-0x0000000000FE0000-0x0000000000FFC000-memory.dmp
        Download

        memory/552-1-0x00000000059B0000-0x0000000005A4C000-memory.dmp
        Download

        memory/552-19-0x0000000006E90000-0x0000000006EF6000-memory.dmp
        Download

        memory/552-27-0x0000000005CC0000-0x0000000005CD0000-memory.dmp
        Download

        memory/552-28-0x0000000005CC0000-0x0000000005CD0000-memory.dmp
        Download

        memory/552-30-0x0000000005CC0000-0x0000000005CD0000-memory.dmp
        Download

        memory/4800-20-0x00000000050E0000-0x00000000050F0000-memory.dmp
        Download

        memory/4800-29-0x00000000050E0000-0x00000000050F0000-memory.dmp
        Download