Resubmissions

14/09/2026, 14:11

260914-rhsj9ssarb10

14/09/2026, 14:08

260914-rfvlvadn7w10

14/09/2026, 13:03

260914-qacneacr7w10

Analysis

  • max time kernel
    150s
  • max time network
    117s
  • 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, 14:11

General

  • Target
    EAX Advanced HD/EAX Advanced HD.exe
  • Size 2.2MB
  • Sample260914-rhsj9ssarb
  • 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 1 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:2132
    • 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:788
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 932
        3⤵
        • Program crash
        PID:4696
    • 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:5904
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Roaming\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:908
      • 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:4368
      • 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:3516
      • 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:1700
      • 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:4144
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3440
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:6016
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3344
      • 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:4108
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        3⤵
        • Detects videocard installed
        • Suspicious behavior: EnumeratesProcesses
        PID:2872
      • 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:4228
        • C:\Windows\system32\PING.EXE
          ping localhost
          4⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:5480
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 788 -ip 788
    1⤵
      PID:2404

    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 d28ef187840dcd1fe0a8a757ef9cd326023bec38b39ef1338f91d508d55dcf28
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 952B
          • SHA256 6acc5ca8ed17a66a6fbc3181c5831894af713d8ebd598af1e330ec1ea4145d2b
          • 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

          __PSScriptPolicyTest_4t2fmvt5.w3u.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4t2fmvt5.w3u.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/788-23-0x0000000000620000-0x000000000081A000-memory.dmp

          memory/788-24-0x00000000058F0000-0x0000000005EAA000-memory.dmp

          memory/788-26-0x0000000005240000-0x00000000052D2000-memory.dmp

          memory/788-35-0x00000000744C2000-0x00000000744C3000-memory.dmp

          memory/2132-4-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/2132-21-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/2132-22-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/2132-2-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/2132-1-0x0000000000010000-0x0000000000246000-memory.dmp

          memory/2132-0-0x00007FFBFBFCF000-0x00007FFBFBFD0000-memory.dmp

          memory/4368-52-0x00000220A64B0000-0x00000220A64BA000-memory.dmp

          memory/4368-43-0x00000220A6240000-0x00000220A6262000-memory.dmp

          memory/4368-50-0x00000220A64D0000-0x00000220A64EE000-memory.dmp

          memory/4368-51-0x00000220A64F0000-0x00000220A65A2000-memory.dmp

          memory/5904-29-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-63-0x0000021838D90000-0x0000021838E06000-memory.dmp

          memory/5904-36-0x0000021838AB0000-0x0000021838AC0000-memory.dmp

          memory/5904-30-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-34-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-33-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-25-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-32-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-28-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-31-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-64-0x0000021838D10000-0x0000021838D60000-memory.dmp

          memory/5904-65-0x0000021838A70000-0x0000021838A8E000-memory.dmp

          memory/5904-27-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-20-0x000002181E530000-0x000002181E570000-memory.dmp

          memory/5904-83-0x0000021838D60000-0x0000021838D6A000-memory.dmp

          memory/5904-84-0x0000021838E10000-0x0000021838E22000-memory.dmp

          memory/5904-96-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp

          memory/5904-97-0x0000021838AB0000-0x0000021838AC0000-memory.dmp

          memory/5904-98-0x00007FFBFBE40000-0x00007FFBFC7E4000-memory.dmp