Analysis

  • max time kernel
    152s
  • max time network
    203s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 14:42

General

  • Target
    BundleCitrixWorkspace2026/setup-files/install-script.ps1
  • Size 2KB
  • Sample260910-r299esdn2t
  • SHA256 2b106fcda88f8d011a73ffb7434e882355ebf94f18da15ec74231b7da93a3049
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 12 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Checks system information in the registry 2 TTPs 1 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 18 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\BundleCitrixWorkspace2026\setup-files\install-script.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\Temp\BundleCitrixWorkspace2026\setup-files\CitrixWorkspaceFullInstaller.exe
      "C:\Users\Admin\AppData\Local\Temp\BundleCitrixWorkspace2026\setup-files\CitrixWorkspaceFullInstaller.exe" /forceinstall /silent EnableCEIP=false /AutoUpdateCheck=disabled /installMSTeamsPlugin
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Users\Admin\AppData\Local\Ctx-02477EC5-F894-4448-A00A-3DA96785A245\Extract\bootstrapperhelper.exe
        "C:\Users\Admin\AppData\Local\Ctx-02477EC5-F894-4448-A00A-3DA96785A245\Extract\bootstrapperhelper.exe" /forceinstall /silent EnableCEIP=false /AutoUpdateCheck=disabled /installMSTeamsPlugin OfflineInstaller
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2688
        • C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\PreRequisiteInstaller.exe
          "C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\PreRequisiteInstaller.exe" /forceinstall /silent EnableCEIP=false /AutoUpdateCheck=disabled /installMSTeamsPlugin OfflineInstaller
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks system information in the registry
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3632
          • C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\windowsdesktop-runtime-8.0.16-win-x86.exe
            "C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\\windowsdesktop-runtime-8.0.16-win-x86.exe" /silent /norestart /l "C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-155054\CtxInstall-DotNetCoreInstaller-20260910-155054.log"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3492
            • C:\Windows\Temp\{E2D9F97A-A5FC-41A7-8605-CC222314970F}\.cr\windowsdesktop-runtime-8.0.16-win-x86.exe
              "C:\Windows\Temp\{E2D9F97A-A5FC-41A7-8605-CC222314970F}\.cr\windowsdesktop-runtime-8.0.16-win-x86.exe" -burn.clean.room="C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\windowsdesktop-runtime-8.0.16-win-x86.exe" -burn.filehandle.attached=748 -burn.filehandle.self=752 /silent /norestart /l "C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-155054\CtxInstall-DotNetCoreInstaller-20260910-155054.log"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2544
              • C:\Windows\Temp\{5AD7931C-BBB7-4E9C-9211-A052CB8EB519}\.be\windowsdesktop-runtime-8.0.16-win-x86.exe
                "C:\Windows\Temp\{5AD7931C-BBB7-4E9C-9211-A052CB8EB519}\.be\windowsdesktop-runtime-8.0.16-win-x86.exe" -q -burn.elevated BurnPipe.{25D917E2-55AD-4B1B-91D2-0F0BF7B3F670} {18B0C83F-2370-4355-8F34-C35D3233646F} 2544
                7⤵
                • Executes dropped EXE
                • Adds Run key to start application
                • System Location Discovery: System Language Discovery
                • Modifies registry class
                • Suspicious use of AdjustPrivilegeToken
                PID:4440
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 944
                7⤵
                • Program crash
                PID:5016
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4856
  • C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe
    "C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe" /burn.runonce
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4172
    • C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe
      "C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe" /quiet /norestart /burn.log.append "C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-155054\CtxInstall-DotNetCoreInstaller-20260910-155054.log"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1580
      • C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe
        "C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe" -burn.clean.room="C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe" -burn.filehandle.attached=564 -burn.filehandle.self=584 /quiet /norestart /burn.log.append "C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-155054\CtxInstall-DotNetCoreInstaller-20260910-155054.log"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3692
        • C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe
          "C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\windowsdesktop-runtime-8.0.16-win-x86.exe" -q -burn.elevated BurnPipe.{A123A7A9-F769-4730-B948-D5214125D744} {B98ECD25-6E8B-43AD-9089-6390401E04A3} 3692
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          PID:1832
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3692 -s 968
          4⤵
          • Program crash
          PID:4216
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2544 -ip 2544
    1⤵
      PID:2856
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 3692 -ip 3692
      1⤵
        PID:4532

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            en-us.cab

            • Path C:\PROGRA~2\Citrix\CTX-3A~1\en-us.cab
            • Size 9KB
            • SHA256 1e3332b820fbe69615d0f9b68cf5b821dfda984effbf96e9fff5992e565e5ae6
            • MD5 SHA1 SHA512 SSDEEP TLSH

            AnalyticsInterface.dll

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\AnalyticsInterface.dll
            • Size 2.5MB
            • SHA256 17429ad8d7c03aa71f9b640612a6e6c022d609af4f65a1787644f8a4a0259caf
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CitrixBrandingHelper.dll

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\CitrixBrandingHelper.dll
            • Size 2.0MB
            • SHA256 eaec518be656977285a9dbbb6ae6675d9e6a157a5a456654d125d599d672bec4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            FeatureFlagHelper.dll

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\FeatureFlagHelper.dll
            • Size 203KB
            • SHA256 380f97edaf8174c6ef47bc7fecbebab6944c424510b45a8fa24e52fd588b197e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            PreRequisiteInstaller.exe

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\PreRequisiteInstaller.exe
            • Size 5.3MB
            • SHA256 23319ec0ac73fe9b26b0dde7d56e78f6bfe8b995813aed41119793753323fa9c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            SettingsInterface.dll

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\SettingsInterface.dll
            • Size 501KB
            • SHA256 4e1584614e5ba306b59537d3b0f0342f28d186b19ce09a4938279e09eeaff3d7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            UtilityCpp.dll

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\UtilityCpp.dll
            • Size 53KB
            • SHA256 770dbad0e72b9c4cdb7d094d231b391344489c048d301782e3f4e2da470e704c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            VCRUNTIME140.dll

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\VCRUNTIME140.dll
            • Size 88KB
            • SHA256 09d1e604e8cdd06176fcc3d3698861be20638a4391f9f2d9e23f868c1576ca94
            • MD5 SHA1 SHA512 SSDEEP TLSH

            msvcp140.dll

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\msvcp140.dll
            • Size 439KB
            • SHA256 718812adb0d669eea9606432202371e358c7de6cdeafeddad222c36ae0d3f263
            • MD5 SHA1 SHA512 SSDEEP TLSH

            sslsdk_b.dll

            • Path C:\Program Files (x86)\Citrix\Ctx-3A8D22F8-2079-402B-8082-792ADCDF72A8\sslsdk_b.dll
            • Size 2.0MB
            • SHA256 a902c567cdb9103490503ba2f4b0d672dcfcf64b4ccf4db70c7fb8dc9499dde9
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CtxInstall-DotNetCoreInstaller-20260910-155054.log

            • Path C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-155054\CtxInstall-DotNetCoreInstaller-20260910-155054.log
            • Size 10KB
            • SHA256 86672397165a46822bb2df9efe3cf831ccf34e0f6a445c379b1c9f38ad7c4d72
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CtxInstall-DotNetCoreInstaller-20260910-155054_000_dotnet_runtime_8.0.16_win_x86.msi.log

            • Path C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-155054\CtxInstall-DotNetCoreInstaller-20260910-155054_000_dotnet_runtime_8.0.16_win_x86.msi.log
            • Size 2KB
            • SHA256 0feb841d0fb189703555bb3b440bcd429bd2096087ef59c7a2818627f7c51a1b
            • MD5 SHA1 SHA512 TLSH

            state.rsm

            • Path C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\state.rsm
            • Size 1KB
            • SHA256 b7f79bd85ce72bf7062989a5b70193a4550abd749d6d905688b18fcbd6e740d3
            • MD5 SHA1 SHA512 TLSH

            Receiver.ico

            • Path C:\Users\Admin\AppData\Local\Ctx-02477EC5-F894-4448-A00A-3DA96785A245\Extract\Receiver.ico
            • Size 264KB
            • SHA256 a4471ad3369d8be5a45f9ed59a867afdbb8584bc654f503d7468df6b9607170d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            bootstrapperhelper.exe

            • Path C:\Users\Admin\AppData\Local\Ctx-02477EC5-F894-4448-A00A-3DA96785A245\Extract\bootstrapperhelper.exe
            • Size 2.0MB
            • SHA256 94a12c160832a9846b7186ecb6b26e9a4dca893305d3cbdba464d010a1bf8eea
            • MD5 SHA1 SHA512 SSDEEP TLSH

            bg.png

            • Path C:\Windows\Temp\{5AD7931C-BBB7-4E9C-9211-A052CB8EB519}\.ba\bg.png
            • Size 4KB
            • SHA256 9095bf7b6baa0107b40a4a6d727215be077133a190f4ca9bd89a176842141e79
            • MD5 SHA1 SHA512 SSDEEP TLSH

            wixstdba.dll

            • Path C:\Windows\Temp\{5AD7931C-BBB7-4E9C-9211-A052CB8EB519}\.ba\wixstdba.dll
            • Size 190KB
            • SHA256 dcea15f3710822ffc262e62ec04cc7bbbf0f33f5d1a853609fbfb65cb6a45640
            • MD5 SHA1 SHA512 SSDEEP TLSH

            dotnet_host_8.0.16_win_x86.msi

            • Path C:\Windows\Temp\{5AD7931C-BBB7-4E9C-9211-A052CB8EB519}\dotnet_host_8.0.16_win_x86.msi
            • Size 696KB
            • SHA256 432258323a2718b616fcaf5f5d1840856f4e12f21b4e49bcb06a388461bd2f32
            • MD5 SHA1 SHA512 SSDEEP TLSH

            dotnet_hostfxr_8.0.16_win_x86.msi

            • Path C:\Windows\Temp\{5AD7931C-BBB7-4E9C-9211-A052CB8EB519}\dotnet_hostfxr_8.0.16_win_x86.msi
            • Size 752KB
            • SHA256 aa417725c73589bce15b5f44ad8bf8386fec1b9fe1e7609546a91108458e50cb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            dotnet_runtime_8.0.16_win_x86.msi

            • Path C:\Windows\Temp\{5AD7931C-BBB7-4E9C-9211-A052CB8EB519}\dotnet_runtime_8.0.16_win_x86.msi
            • Size 24.1MB
            • SHA256 faebb6c073351bcd2f47ababd3ff539307112f73f339dee3e4231688e9aed489
            • MD5 SHA1 SHA512 SSDEEP TLSH

            windowsdesktop_runtime_8.0.16_win_x86.msi

            • Path C:\Windows\Temp\{5AD7931C-BBB7-4E9C-9211-A052CB8EB519}\windowsdesktop_runtime_8.0.16_win_x86.msi
            • Size 26.8MB
            • SHA256 d581d19b9202bdfa247f7bfc56f35bb115ee09cb4d01d3b23b4cbec70fa0f821
            • MD5 SHA1 SHA512 SSDEEP TLSH

            thm.wxl

            • Path C:\Windows\Temp\{B16D194B-0308-4040-BE23-8E20BAB6A32B}\.ba\1033\thm.wxl
            • Size 5KB
            • SHA256 81a68046b06e09385be8449373e7ceb9e79f7724c3cf11f0b18a4489a8d4926a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            windowsdesktop-runtime-8.0.16-win-x86.exe

            • Path C:\Windows\Temp\{E2D9F97A-A5FC-41A7-8605-CC222314970F}\.cr\windowsdesktop-runtime-8.0.16-win-x86.exe
            • Size 608KB
            • SHA256 aab842797aeffd51dd45afb133ca3918b288be9b42f33485a3fd0fbdd350cdbd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1796-12-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-19-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-18-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-17-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-16-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-15-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-14-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-0-0x00007FFD1E61F000-0x00007FFD1E620000-memory.dmp

            memory/1796-22-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-13-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-9-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-10-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-11-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-8-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-7-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-6-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-2-0x0000022C575E0000-0x0000022C57602000-memory.dmp

            memory/1796-5-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-472-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp

            memory/1796-1-0x00007FFD1E490000-0x00007FFD1EE34000-memory.dmp