Resubmissions

11/10/2026, 09:25

261011-ldl9ssfc938

11/10/2026, 09:18

261011-k94chs112m8

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/10/2026, 09:25

General

  • Target
    3574378_7_-setup.msi
  • Size 2.8MB
  • Sample261011-ldl9ssfc93
  • SHA256 a9b0615c61b914fd793fe6b686263ea67f48c00d66cf23c682552c4189f07229
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 TTPs 2 IoCs

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

  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Drops file in Windows directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\3574378_7_-setup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2080
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4336
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4960
      • C:\Windows\system32\cmd.exe
        cmd.exe /c start "" /min /wait cmd.exe /c call "C:\Users\Admin\AppData\Local\JYGoLQgp\hUXFhBCT.bat" "C:\Users\Admin\AppData\Local\Temp\3574378_7_-setup.msi"
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:2448
        • C:\Windows\System32\cmd.exe
          cmd.exe /c call "C:\Users\Admin\AppData\Local\JYGoLQgp\hUXFhBCT.bat" "C:\Users\Admin\AppData\Local\Temp\3574378_7_-setup.msi"
          3⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:2848
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -nop -w h -c "$q=[char]34; $d='public static class N {[System.Runtime.InteropServices.DllImport('+$q+'kernel32.dll'+$q+')]public static extern System.IntPtr GetConsoleWindow();[System.Runtime.InteropServices.DllImport('+$q+'user32.dll'+$q+')]public static extern System.IntPtr GetAncestor(System.IntPtr h,uint g);[System.Runtime.InteropServices.DllImport('+$q+'user32.dll'+$q+')]public static extern bool ShowWindow(System.IntPtr h,int n);}'; Add-Type -TypeDefinition $d; $c=[N]::GetConsoleWindow(); $r=[N]::GetAncestor($c,2); if($r -eq [IntPtr]::Zero){$r=$c}; [void][N]::ShowWindow($r,7)"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2320
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
              "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\cvz1c3ht\cvz1c3ht.cmdline"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1988
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESA975.tmp" "c:\Users\Admin\AppData\Local\Temp\cvz1c3ht\CSCEEBCA81A5EBF419E9333311F963C260.TMP"
                6⤵
                  PID:2972
            • C:\Windows\System32\wscript.exe
              wscript //B //nologo "C:\Users\Admin\AppData\Local\Temp\b14182.vbs"
              4⤵
              • Executes a VBScript file via the Windows Script Host.
              • Suspicious use of WriteProcessMemory
              PID:1744
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -nop -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$r=[IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\JYGoLQgp\hUXFhBCT.bat');$i=$r.LastIndexOf('REM#');&([scriptblock]::Create($r.Substring($i+4)))"
                5⤵
                • Badlisted process makes network request
                • Command and Scripting Interpreter: PowerShell
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:4760
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious use of AdjustPrivilegeToken
        PID:4844

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e599e4b.rbs

            • Path C:\Config.Msi\e599e4b.rbs
            • Size 8KB
            • SHA256 58ef6370a6d005bf3744043cb8cf171e07761abdb66174f396446b4d3a896b5f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            hUXFhBCT.bat

            • Path C:\Users\Admin\AppData\Local\JYGoLQgp\hUXFhBCT.bat
            • Size 30KB
            • SHA256 68aa9329dcff63760ae239b0d3e295525c14207d7646f9c320831823f37e55fd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 1KB
            • SHA256 2368cd63c900efc3fbaf09cd61db14265b4575184e813d8812b55e82643b39f1
            • MD5 SHA1 SHA512 TLSH

            RESA975.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RESA975.tmp
            • Size 1KB
            • SHA256 456b8c80b52675a43b5885af4210c520bd2b1a369dd56109c61e11cd13be971c
            • MD5 SHA1 SHA512 TLSH

            __PSScriptPolicyTest_4k0ixwqn.kw1.psm1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4k0ixwqn.kw1.psm1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            b14182.vbs

            • Path C:\Users\Admin\AppData\Local\Temp\b14182.vbs
            • Size 175B
            • SHA256 a37ecd480b44bf715fc30be4f744e50efe937e62817c15e3a9439417cf7e4dfe
            • MD5 SHA1 SHA512 TLSH

            cvz1c3ht.dll

            • Path C:\Users\Admin\AppData\Local\Temp\cvz1c3ht\cvz1c3ht.dll
            • Size 3KB
            • SHA256 09e40cb26cf4a02c6d360ba495edbae55cfed68723edb3d6af409eb35b109333
            • MD5 SHA1 SHA512 TLSH

            e599e4c.msi

            • Path C:\Windows\Installer\e599e4c.msi
            • Size 2.8MB
            • SHA256 a9b0615c61b914fd793fe6b686263ea67f48c00d66cf23c682552c4189f07229
            • MD5 SHA1 SHA512 SSDEEP TLSH

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 26.1MB
            • SHA256 f77052634ded11f95043d5add976f823a9c80dad6aafc865d942f7c8cfa2c9c4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            {f68a6390-2c19-45dc-b25e-aa56bae216e0}_OnDiskSnapshotProp

            • Path \??\Volume{d1fc2eb0-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{f68a6390-2c19-45dc-b25e-aa56bae216e0}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 0d84a8a6cc6adac1873b5e25437446babc3c3a62a789a597537549f83bcc9048
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CSCEEBCA81A5EBF419E9333311F963C260.TMP

            • Path \??\c:\Users\Admin\AppData\Local\Temp\cvz1c3ht\CSCEEBCA81A5EBF419E9333311F963C260.TMP
            • Size 652B
            • SHA256 719630329358dd010f75cb14eba31e9f18cf2e575bcd5e0c67a340d91498218d
            • MD5 SHA1 SHA512 TLSH

            cvz1c3ht.0.cs

            • Path \??\c:\Users\Admin\AppData\Local\Temp\cvz1c3ht\cvz1c3ht.0.cs
            • Size 382B
            • SHA256 42706b4746dc80e36b32b6c85865604af5d31b57467671860ef7722aef4e64c0
            • MD5 SHA1 SHA512 TLSH

            cvz1c3ht.cmdline

            • Path \??\c:\Users\Admin\AppData\Local\Temp\cvz1c3ht\cvz1c3ht.cmdline
            • Size 369B
            • SHA256 097641d3df40aa8072c19cfbfa76a28dde7f1f6325c131681d92cc39bfec0690
            • MD5 SHA1 SHA512 TLSH

            memory/2320-11-0x0000025F6A1B0000-0x0000025F6A1D2000-memory.dmp

            memory/2320-24-0x0000025F6A1E0000-0x0000025F6A1E8000-memory.dmp

            memory/4760-43-0x0000026A3AA40000-0x0000026A3AA42000-memory.dmp

            memory/4760-53-0x0000026A3B770000-0x0000026A3B7EA000-memory.dmp

            memory/4760-58-0x0000000140000000-0x0000000140166000-memory.dmp

            memory/4760-41-0x0000000140000000-0x0000000140166000-memory.dmp