Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    11/10/2026, 12:18

General

  • Target
    pulse-installer.exe
  • Size 13.9MB
  • Sample261011-pgvxwsas5m
  • SHA256 66cfbb0aaf99a4856547cca14d817bedf2ae48f6d3ece72dde556f89c0cebb19
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Loads dropped DLL 21 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Drops file in Program Files directory 14 IoCs
  • Hide Artifacts: Ignore Process Interrupts 1 TTPs 1 IoCs

    Command interpreters often include specific commands/flags that ignore errors and other hangups.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

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

  • Kills process with taskkill 4 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pulse-installer.exe
    "C:\Users\Admin\AppData\Local\Temp\pulse-installer.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4016
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /F /IM PULSE.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:4448
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /F /IM pulse.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:3852
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /F /IM pulse-watchdog.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2404
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /F /IM pulse-elevated-helper.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1140
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -NoProfile -ExecutionPolicy Bypass -Command "Add-MpPreference -ExclusionPath \"C:\Program Files\PULSE\" -ErrorAction SilentlyContinue"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1644
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -NoProfile -ExecutionPolicy Bypass -Command "Remove-MpPreference -ExclusionPath \"C:\ProgramData\\com.pulse.app\" -ErrorAction SilentlyContinue; Remove-MpPreference -ExclusionPath \"C:\ProgramData\\Temp\\pulse_update\" -ErrorAction SilentlyContinue"
      2⤵
      • Hide Artifacts: Ignore Process Interrupts
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2980
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions" /v DisableAutoExclusions /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:116
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Program Files\PULSE" /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1116
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Program Files\PULSE\pulse.exe" /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2828
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /TN "PULSE_AdminLaunch" /TR ""C:\Program Files\PULSE\pulse.exe"" /SC ONLOGON /RL HIGHEST /IT /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3316
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /TN "PULSE_Watchdog" /TR ""C:\Program Files\PULSE\pulse-watchdog.exe"" /SC ONLOGON /IT /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2340
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -NoProfile -ExecutionPolicy Bypass -Command "@(\"C:\Users\Public\Desktop\PULSE.lnk\", \"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\PULSE.lnk\", \"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\PULSE\PULSE.lnk\") | ForEach-Object { if (Test-Path -LiteralPath $_) { try { $b = [System.IO.File]::ReadAllBytes($_); $b[21] = $b[21] -bor 0x20; [System.IO.File]::WriteAllBytes($_, $b) } catch {} } }"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:368

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        pulse.exe

        • Path C:\Program Files\PULSE\pulse.exe
        • Size 40.1MB
        • SHA256 a9af8b7f30369172fbc68daab97ecac167917a4b77d2286872b7cad80623041d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        PULSE.lnk

        • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\PULSE.lnk
        • Size 901B
        • SHA256 68f2ae0cebb2a71a07fb2a2df0ced37383252fb3b7874aa7c79a63bb9f8c1a50
        • MD5 SHA1 SHA512 TLSH

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 e4f77b8e59d681507770b4759f67aa215b2ba263a884d35af22a620a03b7b36f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 2ef432791b4d78b9c7c20655f9f2570ffcb9742a7c45f17288d5e589b45b8be3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_0dgbo1ot.ebf.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0dgbo1ot.ebf.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        LangDLL.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsa5DFC.tmp\LangDLL.dll
        • Size 5KB
        • SHA256 4cf25411f28f639f72156c24b0f66ea42f5aee5973f6c137d901da6ae42d5b7e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsa5DFC.tmp\System.dll
        • Size 12KB
        • SHA256 8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        modern-wizard.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa5DFC.tmp\modern-wizard.bmp
        • Size 25KB
        • SHA256 3ad2dc318056d0a2024af1804ea741146cfc18cc404649a44610cbf8b2056cf2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsDialogs.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsa5DFC.tmp\nsDialogs.dll
        • Size 9KB
        • SHA256 b1350f487692057c8ffde75dcc55287a52a3272240d4d4912f24464b27551fc0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsExec.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsa5DFC.tmp\nsExec.dll
        • Size 7KB
        • SHA256 b121689861b506dbc9c3797b49bc8a90d555cb7db58cb959165cc758391c00bb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsis_tauri_utils.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsa5DFC.tmp\nsis_tauri_utils.dll
        • Size 33KB
        • SHA256 5ba143b5db4a87d32d6e7802e033330aae56cbceabe0d1e3ba41948385ad4709
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/368-154-0x0000000006660000-0x00000000066AC000-memory.dmp

        memory/368-152-0x0000000005C70000-0x0000000005FC4000-memory.dmp

        memory/368-155-0x0000000006900000-0x0000000006922000-memory.dmp

        memory/368-156-0x0000000007C40000-0x00000000081E4000-memory.dmp

        memory/1644-37-0x00000000053B0000-0x0000000005416000-memory.dmp

        memory/1644-50-0x000000006F910000-0x000000006F95C000-memory.dmp

        memory/1644-60-0x0000000007390000-0x0000000007A0A000-memory.dmp

        memory/1644-61-0x0000000006D50000-0x0000000006D6A000-memory.dmp

        memory/1644-62-0x0000000006DB0000-0x0000000006DBA000-memory.dmp

        memory/1644-63-0x0000000006FE0000-0x0000000007076000-memory.dmp

        memory/1644-64-0x0000000006F50000-0x0000000006F61000-memory.dmp

        memory/1644-65-0x0000000006F90000-0x0000000006F9E000-memory.dmp

        memory/1644-66-0x0000000006FA0000-0x0000000006FB4000-memory.dmp

        memory/1644-67-0x0000000007080000-0x000000000709A000-memory.dmp

        memory/1644-68-0x0000000006FD0000-0x0000000006FD8000-memory.dmp

        memory/1644-59-0x0000000006C10000-0x0000000006CB3000-memory.dmp

        memory/1644-34-0x0000000002120000-0x0000000002156000-memory.dmp

        memory/1644-58-0x0000000006BE0000-0x0000000006BFE000-memory.dmp

        memory/1644-35-0x0000000004D10000-0x0000000005338000-memory.dmp

        memory/1644-49-0x0000000005FF0000-0x0000000006022000-memory.dmp

        memory/1644-48-0x0000000005A60000-0x0000000005AAC000-memory.dmp

        memory/1644-47-0x0000000005A20000-0x0000000005A3E000-memory.dmp

        memory/1644-46-0x0000000005490000-0x00000000057E4000-memory.dmp

        memory/1644-38-0x0000000005420000-0x0000000005486000-memory.dmp

        memory/1644-36-0x0000000004A80000-0x0000000004AA2000-memory.dmp

        memory/2980-84-0x000000006F910000-0x000000006F95C000-memory.dmp

        memory/2980-82-0x0000000005670000-0x00000000059C4000-memory.dmp