Analysis

  • max time kernel
    149s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/09/2026, 14:42

General

  • Target
    BundleCitrixWorkspace2026/setup-files/CitrixWorkspaceFullInstaller.exe
  • Size 819.7MB
  • Sample260910-r299esdn2t
  • SHA256 58e8d6af96f31bc4ba18dda6b327a3c175757031c6b4cd8d5c9eb0bcfae3ba6e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Checks installed software on the system 1 TTPs

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

  • 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 7 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 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 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BundleCitrixWorkspace2026\setup-files\CitrixWorkspaceFullInstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\BundleCitrixWorkspace2026\setup-files\CitrixWorkspaceFullInstaller.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Users\Admin\AppData\Local\Ctx-9AB455EE-CDE0-4C89-96BD-D84CC46485F6\Extract\bootstrapperhelper.exe
      "C:\Users\Admin\AppData\Local\Ctx-9AB455EE-CDE0-4C89-96BD-D84CC46485F6\Extract\bootstrapperhelper.exe" OfflineInstaller
      2⤵
      • Checks computer location settings
      • Drops file in Program Files directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4736
      • C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\PreRequisiteInstaller.exe
        "C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\PreRequisiteInstaller.exe" OfflineInstaller
        3⤵
        • Checks system information in the registry
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1700
        • C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\windowsdesktop-runtime-8.0.16-win-x86.exe
          "C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\\windowsdesktop-runtime-8.0.16-win-x86.exe" /silent /norestart /l "C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-154950\CtxInstall-DotNetCoreInstaller-20260910-154951.log"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4632
          • C:\Windows\Temp\{0616AB6E-545F-4BBD-AF02-DBDD5296DA57}\.cr\windowsdesktop-runtime-8.0.16-win-x86.exe
            "C:\Windows\Temp\{0616AB6E-545F-4BBD-AF02-DBDD5296DA57}\.cr\windowsdesktop-runtime-8.0.16-win-x86.exe" -burn.clean.room="C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\windowsdesktop-runtime-8.0.16-win-x86.exe" -burn.filehandle.attached=680 -burn.filehandle.self=720 /silent /norestart /l "C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-154950\CtxInstall-DotNetCoreInstaller-20260910-154951.log"
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:920
            • C:\Windows\Temp\{E3D77C16-99D3-4135-8B9A-0DD8335A7E7B}\.be\windowsdesktop-runtime-8.0.16-win-x86.exe
              "C:\Windows\Temp\{E3D77C16-99D3-4135-8B9A-0DD8335A7E7B}\.be\windowsdesktop-runtime-8.0.16-win-x86.exe" -q -burn.elevated BurnPipe.{81386520-8B11-41DE-8E9F-E9DE0691A367} {FA657E21-2B58-45B6-B48C-DBD34133A048} 920
              6⤵
              • Adds Run key to start application
              • Drops file in Program Files directory
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Modifies registry class
              • Suspicious use of AdjustPrivilegeToken
              PID:2764
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 920 -s 1052
              6⤵
              • Program crash
              PID:3932
  • 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
    PID:3792
  • 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:1664
    • 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-20260910-154950\CtxInstall-DotNetCoreInstaller-20260910-154951.log"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1852
      • 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=520 -burn.filehandle.self=540 /quiet /norestart /burn.log.append "C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-154950\CtxInstall-DotNetCoreInstaller-20260910-154951.log"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:392
        • 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.{84557914-B71F-4458-9A24-C224F372C9DF} {466F6081-834D-4904-81F7-FF774080EAA8} 392
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:4544
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 920 -ip 920
    1⤵
      PID:4700

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          en-us.cab

          • Path C:\PROGRA~2\Citrix\CTX-D2~1\en-us.cab
          • Size 9KB
          • SHA256 1e3332b820fbe69615d0f9b68cf5b821dfda984effbf96e9fff5992e565e5ae6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          AnalyticsInterface.dll

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\AnalyticsInterface.dll
          • Size 2.5MB
          • SHA256 17429ad8d7c03aa71f9b640612a6e6c022d609af4f65a1787644f8a4a0259caf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CitrixBrandingHelper.dll

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\CitrixBrandingHelper.dll
          • Size 2.0MB
          • SHA256 eaec518be656977285a9dbbb6ae6675d9e6a157a5a456654d125d599d672bec4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          FeatureFlagHelper.dll

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\FeatureFlagHelper.dll
          • Size 203KB
          • SHA256 380f97edaf8174c6ef47bc7fecbebab6944c424510b45a8fa24e52fd588b197e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSVCP140.dll

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\MSVCP140.dll
          • Size 439KB
          • SHA256 718812adb0d669eea9606432202371e358c7de6cdeafeddad222c36ae0d3f263
          • MD5 SHA1 SHA512 SSDEEP TLSH

          PreRequisiteInstaller.exe

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\PreRequisiteInstaller.exe
          • Size 5.3MB
          • SHA256 23319ec0ac73fe9b26b0dde7d56e78f6bfe8b995813aed41119793753323fa9c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          SettingsInterface.dll

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\SettingsInterface.dll
          • Size 501KB
          • SHA256 4e1584614e5ba306b59537d3b0f0342f28d186b19ce09a4938279e09eeaff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          UtilityCpp.dll

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\UtilityCpp.dll
          • Size 53KB
          • SHA256 770dbad0e72b9c4cdb7d094d231b391344489c048d301782e3f4e2da470e704c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          sslsdk_b.dll

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\sslsdk_b.dll
          • Size 2.0MB
          • SHA256 a902c567cdb9103490503ba2f4b0d672dcfcf64b4ccf4db70c7fb8dc9499dde9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          vcruntime140.dll

          • Path C:\Program Files (x86)\Citrix\Ctx-D2C4F052-8022-4320-83F7-127E38DF43E1\vcruntime140.dll
          • Size 88KB
          • SHA256 09d1e604e8cdd06176fcc3d3698861be20638a4391f9f2d9e23f868c1576ca94
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CtxInstall-DotNetCoreInstaller-20260910-154951.log

          • Path C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-154950\CtxInstall-DotNetCoreInstaller-20260910-154951.log
          • Size 10KB
          • SHA256 7914bad8e7cb94e969719761523579d39108334837ad8b155c76a7f4cb103dba
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CtxInstall-DotNetCoreInstaller-20260910-154951_000_dotnet_runtime_8.0.16_win_x86.msi.log

          • Path C:\Program Files (x86)\Citrix\Logs\CTXPreRequisiteInstallLogs-20260910-154950\CtxInstall-DotNetCoreInstaller-20260910-154951_000_dotnet_runtime_8.0.16_win_x86.msi.log
          • Size 4KB
          • SHA256 ac1beb8692e30770790b857d0f8dba5e98ac9980a32e5b313123f6f976d92bc2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          state.rsm

          • Path C:\ProgramData\Package Cache\{82efd5ea-41fb-496a-a50d-48391b80e98d}\state.rsm
          • Size 1KB
          • SHA256 06e25903bda7253a757f4a0c959f4f3b94f8d609ca6f837ac4f58829838ecca7
          • MD5 SHA1 SHA512 TLSH

          Receiver.ico

          • Path C:\Users\Admin\AppData\Local\Ctx-9AB455EE-CDE0-4C89-96BD-D84CC46485F6\Extract\Receiver.ico
          • Size 264KB
          • SHA256 a4471ad3369d8be5a45f9ed59a867afdbb8584bc654f503d7468df6b9607170d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          bootstrapperhelper.exe

          • Path C:\Users\Admin\AppData\Local\Ctx-9AB455EE-CDE0-4C89-96BD-D84CC46485F6\Extract\bootstrapperhelper.exe
          • Size 2.0MB
          • SHA256 94a12c160832a9846b7186ecb6b26e9a4dca893305d3cbdba464d010a1bf8eea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          windowsdesktop-runtime-8.0.16-win-x86.exe

          • Path C:\Windows\Temp\{0616AB6E-545F-4BBD-AF02-DBDD5296DA57}\.cr\windowsdesktop-runtime-8.0.16-win-x86.exe
          • Size 608KB
          • SHA256 aab842797aeffd51dd45afb133ca3918b288be9b42f33485a3fd0fbdd350cdbd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          thm.wxl

          • Path C:\Windows\Temp\{CCA9B85A-6402-4476-92D0-4C32CB8D2A3A}\.ba\1033\thm.wxl
          • Size 5KB
          • SHA256 81a68046b06e09385be8449373e7ceb9e79f7724c3cf11f0b18a4489a8d4926a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          bg.png

          • Path C:\Windows\Temp\{E3D77C16-99D3-4135-8B9A-0DD8335A7E7B}\.ba\bg.png
          • Size 4KB
          • SHA256 9095bf7b6baa0107b40a4a6d727215be077133a190f4ca9bd89a176842141e79
          • MD5 SHA1 SHA512 SSDEEP TLSH

          wixstdba.dll

          • Path C:\Windows\Temp\{E3D77C16-99D3-4135-8B9A-0DD8335A7E7B}\.ba\wixstdba.dll
          • Size 190KB
          • SHA256 dcea15f3710822ffc262e62ec04cc7bbbf0f33f5d1a853609fbfb65cb6a45640
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dotnet_host_8.0.16_win_x86.msi

          • Path C:\Windows\Temp\{E3D77C16-99D3-4135-8B9A-0DD8335A7E7B}\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\{E3D77C16-99D3-4135-8B9A-0DD8335A7E7B}\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\{E3D77C16-99D3-4135-8B9A-0DD8335A7E7B}\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\{E3D77C16-99D3-4135-8B9A-0DD8335A7E7B}\windowsdesktop_runtime_8.0.16_win_x86.msi
          • Size 26.8MB
          • SHA256 d581d19b9202bdfa247f7bfc56f35bb115ee09cb4d01d3b23b4cbec70fa0f821
          • MD5 SHA1 SHA512 SSDEEP TLSH