Overview

overview

7

Static

static

3

PulseSecur...ce.exe

windows10-2004-x64

7

PulseSecur...ce.exe

windows11-ltsc_2024-x64

7

$PLUGINSDI...SC.dll

windows10-2004-x64

3

$PLUGINSDI...SC.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...fo.dll

windows10-2004-x64

3

$PLUGINSDI...fo.dll

windows11-ltsc_2024-x64

3

PulseSecur...ce.msi

windows10-2004-x64

7

PulseSecur...ce.msi

windows11-ltsc_2024-x64

7

VerifyAndInstall.exe

windows10-2004-x64

3

VerifyAndInstall.exe

windows11-ltsc_2024-x64

3

dsInstallerClient.dll

windows10-2004-x64

3

dsInstallerClient.dll

windows11-ltsc_2024-x64

3

dsIpc.dll

windows10-2004-x64

3

dsIpc.dll

windows11-ltsc_2024-x64

3

dsLogService.dll

windows10-2004-x64

3

dsLogService.dll

windows11-ltsc_2024-x64

3

msvcp140.dll

windows10-2004-x64

3

msvcp140.dll

windows11-ltsc_2024-x64

3

vcruntime140.dll

windows10-2004-x64

3

vcruntime140.dll

windows11-ltsc_2024-x64

3

Analysis

  • max time kernel
    148s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 12:14

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General

  • Target
    PulseSecureInstallerService.exe
  • Size 4.9MB
  • Sample261102-pej3lsvy5p
  • SHA256 844237486a2191881bbb319759e7d0fbf46579b97a13e9c1e5cd6243b541b68b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
defense_evasiondiscoveryexecutioninstallerpersistenceprivilege_escalationransomware

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Drops file in Program Files directory 47 IoCs
  • Drops file in Windows directory 48 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 24 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    execution
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 15 IoCs

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

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

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

  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Modifies data under HKEY_USERS 44 IoCs
  • Modifies registry class 64 IoCs
  • Runs net.exe
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\PulseSecureInstallerService.exe
    "C:\Users\Admin\AppData\Local\Temp\PulseSecureInstallerService.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5160
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec /i "C:\Users\Admin\AppData\Local\Temp\PulseSecureInstallerService.msi" /l*v "C:\Users\Admin\AppData\Local\Temp\PSInstallerService.log"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:2692
  • 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
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2116
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 84D2EB7E97653FC97C16B11FA1E7E022
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1864
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0F0C83AA2E4C38C24F1A6D3FC3C32A51 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5080
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c Taskkill /IM "PulseSecureService.exe" /F > "C:\Users\Admin\AppData\Local\Temp\PSProcess.log"
          3⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2624
          • C:\Windows\SysWOW64\taskkill.exe
            Taskkill /IM "PulseSecureService.exe" /F
            4⤵
            • System Location Discovery: System Language Discovery
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:3784
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c net stop "PulseSecureService" > "C:\Users\Admin\AppData\Local\Temp\PSService.log"
          3⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4672
          • C:\Windows\SysWOW64\net.exe
            net stop "PulseSecureService"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4668
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "PulseSecureService"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:5452
        • C:\Windows\SysWOW64\icacls.exe
          C:\Windows\system32\icacls.exe "C:\ProgramData\Pulse Secure" /T /C /RESET
          3⤵
          • Modifies file permissions
          • System Location Discovery: System Language Discovery
          PID:5236
      • C:\Windows\System32\MsiExec.exe
        "C:\Windows\System32\MsiExec.exe" /Y "C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\PulseSecureServicePS64.dll"
        2⤵
        • Loads dropped DLL
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:1844
      • C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\PulseSecureService.exe
        "C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\PulseSecureService.exe" -start
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:2416
      • C:\Windows\Installer\MSI5F9.tmp
        "C:\Windows\Installer\MSI5F9.tmp" /S
        2⤵
        • Drops file in Windows directory
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:2652
      • C:\Windows\Installer\MSI761.tmp
        "C:\Windows\Installer\MSI761.tmp" /S
        2⤵
        • Drops file in Windows directory
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:256
        • C:\Windows\system32\regsvr32.exe
          "C:\Windows\system32\regsvr32.exe" /s "C:\Windows\Downloaded Program Files\PulseSetupClient64.ocx"
          3⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:2704
      • C:\Windows\Installer\MSI918.tmp
        "C:\Windows\Installer\MSI918.tmp" /S
        2⤵
        • Drops file in Windows directory
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:5592
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:5612
    • C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\PulseSecureService.exe
      "C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\PulseSecureService.exe"
      1⤵
      • Drops file in Program Files directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:4736

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59eb32.rbs
          • Path C:\Config.Msi\e59eb32.rbs
          • Size 658KB
          • SHA256 ad784b05a748fe13a5618dfe9f40d036d73357fa6b74489690f8e0faf459dd3d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          NetMonitor.dll
          • Path C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\NetMonitor.dll
          • Size 291KB
          • SHA256 6f6f441e168a6308a934f4be702ea41c62f3bea42bba167a43049bc2a69f2317
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PulseSecureService.exe
          • Path C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\PulseSecureService.exe
          • Size 448KB
          • SHA256 bd40699223721d0c5f8258173d9971e7297e95abe87922bb5d90bdddc5a8d37f
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PulseSecureServicePS64.dll
          • Path C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\PulseSecureServicePS64.dll
          • Size 295KB
          • SHA256 f20d448580419563feeef7eeec83c0aaa3941835682ae6be89a7a6974da87c72
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          access.ini
          • Path C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\access.ini
          • Size 412B
          • SHA256 1ca85d164084dc66db1d5169b6198d56a127961dfeddf8ecf9335ccfdc64ff13
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          dsInstallerService.dll
          • Path C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\dsInstallerService.dll
          • Size 187KB
          • SHA256 2ebd05eeb56eafb32dbf90276ce03e889851354a85453b0c19249e9765d223ab
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          dsIpc.dll
          • Path C:\Program Files (x86)\Common Files\Pulse Secure\JUNS\dsIpc.dll
          • Size 936KB
          • SHA256 9d3041541fcd79d5df912971d12ff975466afde6c4f368b76802f170eaeba064
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PSInstallerService.log
          • Path C:\Users\Admin\AppData\Local\Temp\PSInstallerService.log
          • Size 58KB
          • SHA256 edcd14f431c3dcc89fb37e35bfbc20df6d9d2020951ffb9302de56d7c99ff913
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PulseSecureInstallerService.msi
          • Path C:\Users\Admin\AppData\Local\Temp\PulseSecureInstallerService.msi
          • Size 4.9MB
          • SHA256 fa7af9acdf6985bf8f4c42818f11c5c695f503af4d69928fa06c7778f1470031
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          SimpleSC.dll
          • Path C:\Users\Admin\AppData\Local\Temp\nsg918A.tmp\SimpleSC.dll
          • Size 59KB
          • SHA256 f41f1173b9d367bb6a085ff0b19d1273fc0b7dad32fedbb69b07240cfc9950c8
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          UserInfo.dll
          • Path C:\Users\Admin\AppData\Local\Temp\nsg918A.tmp\UserInfo.dll
          • Size 4KB
          • SHA256 11adf8916947b5a20a071b494fa034cf62769dcc6293a1340b29a5bb29ac8e87
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          System.dll
          • Path C:\Users\Admin\AppData\Local\Temp\nsn794.tmp\System.dll
          • Size 11KB
          • SHA256 a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          JuniperSetup.ocx
          • Path C:\Windows\Downloaded Program Files\JuniperSetup.ocx
          • Size 245KB
          • SHA256 6a74dd42fdcfa70727defa6ecb1df0265ee3d4352f0ca43e2bba34c4432f218e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PulseSetupClient.ocx
          • Path C:\Windows\Downloaded Program Files\PulseSetupClient.ocx
          • Size 447KB
          • SHA256 8768edf73ca6d3e8cfceeec71eedf15e598b0ddeb3a799d2b754ed1a697612e6
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PulseSetupClient64.ocx
          • Path C:\Windows\Downloaded Program Files\PulseSetupClient64.ocx
          • Size 531KB
          • SHA256 5cfe032a982258ae9c2ac48d4e5eb5336b3491a5e31d90924ba0a4463463d385
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          install.log
          • Path C:\Windows\Downloaded Program Files\install.log
          • Size 6KB
          • SHA256 ba88a6ae38b7eaeac4da53ac0c33a59d88c174bdb3374b71573486870c07c8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSI5F9.tmp
          • Path C:\Windows\Installer\MSI5F9.tmp
          • Size 640KB
          • SHA256 b177705b25b8c0210c6a87ce49d8ca493518f6de706ead63745c6efd816d2432
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSI761.tmp
          • Path C:\Windows\Installer\MSI761.tmp
          • Size 765KB
          • SHA256 fd3b06adc8a0ecc655be6b85e3ab9d28d6885d1a186d9a7d4a3da53c5a1888ce
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSI918.tmp
          • Path C:\Windows\Installer\MSI918.tmp
          • Size 155KB
          • SHA256 79fe152d4254137c63c8c45521612c3be74b835eea4f3cdb6186a189d538f267
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSIF295.tmp
          • Path C:\Windows\Installer\MSIF295.tmp
          • Size 215KB
          • SHA256 7548a0f20cb0ae214da3f0a4d3f21a59c6f50ce9f2e5bd666a471d6bb70be74c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSIFB83.tmp
          • Path C:\Windows\Installer\MSIFB83.tmp
          • Size 413KB
          • SHA256 5f07adbb40997b0317b5d1496f202f6fb0a3d46012f706e1dd2ac7024fe3b0c5
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          metadata-2
          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 2e7a09344d970e02234085ee144b6813952f9a336fdb4529322b1c4a711aa4c8
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          {e3111930-01f9-4cc3-b970-62b842325409}_OnDiskSnapshotProp
          • Path \??\Volume{e35b4427-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{e3111930-01f9-4cc3-b970-62b842325409}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 d5d2ce7c49d722943271a173e06b5786f25cc8d7747971112534b6d36fdad565
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/5160-12-0x00000000023D0000-0x00000000023E3000-memory.dmp
          Download