Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/10/2026, 19:08

General

  • Target
    ConnectWiseControl.ClientSetup.msi
  • Size 1.5MB
  • Sample261009-xtd4xaea37
  • SHA256 c0258934640daa6207fff2ddd6ad058fb05ac7cd401f295fcddc3a4898268741
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 47 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Program Files directory 12 IoCs
  • Drops file in Windows directory 20 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

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

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 19 IoCs
  • Modifies registry class 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 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\ConnectWiseControl.ClientSetup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3120
  • 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 behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5456
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3DBCA4C6065FFB7A7A617F4A7D23CF5A C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4120
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB443.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240760187 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3392
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4192
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 36857BCAD89C9CD1975F9416A6145472
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3700
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 10D9B380FD4B48C125F52B451ECE3844 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1644
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1196
    • C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=13.37.72.210&p=8041&s=2b9d5f00-6e20-47b6-af3b-4b5691215418&k=BgIAAACkAABSU0ExAAgAAAEAAQAFJ7ZuWXP5BWViHJTbf5tPj7Sz3VZwFq8m7qZRUuRH8DdT5ZTh16EXQCtQGTdC3%2f6cdeRipg90LvRJZX4%2fUH8mHIc8WT2uHwG0TTG%2bw8jNKIhaiX5%2bAk5V%2fBlG7ZV8vvpvIpen%2bIjWKto%2b%2ft2RaJJkmNEiZXVhbDKkMCgLoguOOEHQTD2zzeE%2b%2bYbIKt2%2btII8jVJd9udccUDkoBTNIilMA4lD%2f18HSK9IXWik3cby%2bIBrxpoP6s%2bA2rbet3WdvT0np%2bdqRuOkf2A8iowrzdSYAy9REZQ6VQse0UfvmLhINz31AqKPMMoMth4o%2bMavAJ8l%2b4%2b2cAnDO%2bb6%2bFylxuzA&t=&c=&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5176
      • C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.WindowsClient.exe" "RunRole" "eb4bd87e-cedd-442a-a00c-4965cb04815b" "User"
        2⤵
        • Executes dropped EXE
        PID:3376
      • C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.WindowsClient.exe" "RunRole" "3a0bf130-ef82-434b-aaab-242249eec280" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4268
    • C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=13.37.72.210&p=8041&s=2b9d5f00-6e20-47b6-af3b-4b5691215418&k=BgIAAACkAABSU0ExAAgAAAEAAQAFJ7ZuWXP5BWViHJTbf5tPj7Sz3VZwFq8m7qZRUuRH8DdT5ZTh16EXQCtQGTdC3f6cdeRipg90LvRJZX4fUH8mHIc8WT2uHwG0TTGbw8jNKIhaiX5bAk5VfBlG7ZV8vvpvIpenbIjWKtobft2RaJJkmNEiZXVhbDKkMCgLoguOOEHQTD2zzeEbbYbIKt2btII8jVJd9udccUDkoBTNIilMA4lDf18HSK9IXWik3cbybIBrxpoP6sbA2rbet3WdvT0npbdqRuOkf2A8iowrzdSYAy9REZQ6VQse0UfvmLhINz31AqKPMMoMth4obMavAJ8lb4b2cAnDObb6bFylxuzA&t=&c=&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:6060
    • C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=13.37.72.210&p=8041&s=2b9d5f00-6e20-47b6-af3b-4b5691215418&k=BgIAAACkAABSU0ExAAgAAAEAAQAFJ7ZuWXP5BWViHJTbf5tPj7Sz3VZwFq8m7qZRUuRH8DdT5ZTh16EXQCtQGTdC3f6cdeRipg90LvRJZX4fUH8mHIc8WT2uHwG0TTGbw8jNKIhaiX5bAk5VfBlG7ZV8vvpvIpenbIjWKtobft2RaJJkmNEiZXVhbDKkMCgLoguOOEHQTD2zzeEbbYbIKt2btII8jVJd9udccUDkoBTNIilMA4lDf18HSK9IXWik3cbybIBrxpoP6sbA2rbet3WdvT0npbdqRuOkf2A8iowrzdSYAy9REZQ6VQse0UfvmLhINz31AqKPMMoMth4obMavAJ8lb4b2cAnDObb6bFylxuzA&t=&c=&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4316
      • C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.WindowsClient.exe" "RunRole" "e6952bd8-76f6-4aed-9c0e-96da22666d00" "User"
        2⤵
        • Executes dropped EXE
        PID:4768

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59fe5c.rbs

          • Path C:\Config.Msi\e59fe5c.rbs
          • Size 212KB
          • SHA256 513c14c61ef9b2a3663a541d8dc30c0423cb6f75aa2dd8f503ac99c6e2f82711
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.Client.dll
          • Size 99KB
          • SHA256 d03080496ab39d14c5f9c611db6fe7c1961a22f31bf81afa23236092d1aab8c4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.ClientService.dll
          • Size 25KB
          • SHA256 e944fba422b37726b839ba2416b8c816bb271b4d09b3922d3258cc7a34a823d4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.ClientService.exe
          • Size 87KB
          • SHA256 785617001ab812aceee696b29ea0ad79f4539e1f941abea8e419eefcfc83384b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.Windows.dll
          • Size 1.1MB
          • SHA256 410541de79520a6aaefc5969a9b16b9c43a6117bfe6e0d731f2e3f9aad17d9e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\ScreenConnect.WindowsClient.exe
          • Size 427KB
          • SHA256 e74ad2f5cffd1895ca4274272e6901c74a11d45aadf52a015502242495515a00
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (948c0d572cb98b0c)\app.config
          • Size 2KB
          • SHA256 ae5fc34ccd25c235997ed61a6a7b00440f171baee6fb0d638073744858d8ea2e
          • MD5 SHA1 SHA512 TLSH

          MSIB443.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB443.tmp
          • Size 320KB
          • SHA256 ea134f4d9e80ec934fc1304ba687ba8bba62398300323432ec2cc1ef5ad1f75d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB443.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB443.tmp-\ScreenConnect.Core.dll
          • Size 311KB
          • SHA256 18d41ab18390afb3cfbc0a872cd89565e7c21ec32237ae5be8a7f113e8015420
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB443.tmp-\ScreenConnect.InstallerActions.dll
          • Size 17KB
          • SHA256 a41b68a124497d0e4e5f46fcc2f152ed2dddbde2f0d0e12f54c7335243f7f120
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI32F.tmp

          • Path C:\Windows\Installer\MSI32F.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59fe5d.msi

          • Path C:\Windows\Installer\e59fe5d.msi
          • Size 1.5MB
          • SHA256 c0258934640daa6207fff2ddd6ad058fb05ac7cd401f295fcddc3a4898268741
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3376-119-0x000000001BB00000-0x000000001BB54000-memory.dmp

          memory/3376-121-0x000000001BF30000-0x000000001C0B8000-memory.dmp

          memory/3376-117-0x0000000000AC0000-0x0000000000B30000-memory.dmp

          memory/3376-120-0x000000001BC80000-0x000000001BDA0000-memory.dmp

          memory/3376-118-0x0000000001390000-0x00000000013B0000-memory.dmp

          memory/3392-23-0x0000000006660000-0x0000000006C1A000-memory.dmp

          memory/3392-22-0x0000000005FE0000-0x0000000006034000-memory.dmp

          memory/3392-18-0x0000000005F70000-0x0000000005F7A000-memory.dmp

          memory/3392-14-0x0000000005F30000-0x0000000005F5E000-memory.dmp

          memory/4768-122-0x0000000003070000-0x000000000307C000-memory.dmp

          memory/5176-116-0x0000000004C80000-0x0000000004CD0000-memory.dmp

          memory/5176-110-0x00000000048F0000-0x0000000004960000-memory.dmp

          memory/5176-82-0x0000000004260000-0x0000000004280000-memory.dmp

          memory/5176-95-0x0000000004460000-0x0000000004580000-memory.dmp

          memory/5176-111-0x0000000004AF0000-0x0000000004C78000-memory.dmp

          memory/6060-71-0x0000000000C60000-0x0000000000C6C000-memory.dmp