Analysis

  • max time kernel
    149s
  • max time network
    136s
  • 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, 18:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample261102-wy2kbswtbt
  • SHA256 0039c99d2e63fb03b0fca47b6883c3a64a1ca021396de4992db2d63fc3807232
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 9 IoCs
  • 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.

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 9 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.

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\9e129070b2e11553\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:4572
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • 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:3812
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding D795532E5A5049CD7443834D2E534EC6 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5800
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7A85.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240745234 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4576
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7F39.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240746343 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:5404
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8824.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240748687 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5916
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2976
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8B76FE42014995DB140BB25281C23DBB
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:984
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0CAF622106666EC2AF9E3F391BEAE874 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2424
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2936
    • C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-eecser-relay.screenconnect.com&p=443&s=ce00bfcf-b57e-4961-b45c-389eaf951a62&k=BgIAAACkAABSU0ExAAgAAAEAAQCNpxsszpr19GvethjYrbnvsDoSlPshxFKiI%2bYCrVpCAS6OljB%2bUcCi8h9%2bQj4L3TaN0I2iNmnWiX0YdU5dl64Y%2fFlbgv4iVyfE%2boC3vDIuW0CcBG9U80CU0mMiQIfGpUJIVGWZC%2fIdUeBESdxKvfmFugPDRpYhi64EzHG%2fPIKcVSO3Qr%2b9qcKVnEeK1qpVVr6nHtuNyOHMinM4bPJRgT7IbRtO%2f1bVSZ4mYtOLmcAew%2bdpe3f6ECM7XK74O0AJjIrrZQZIsI19qoOeQ9zLT179hcyKWPoFXx45%2bF%2bV29NZ5XUFwi1HZNNt57M885nOREmfqD380ipK8UPo%2bKxu%2finV"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4872
      • C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.WindowsClient.exe" "RunRole" "95035905-c9b0-45ed-b15f-7cb0d35e5096" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5412

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59e381.rbs

          • Path C:\Config.Msi\e59e381.rbs
          • Size 214KB
          • SHA256 e3fe7d9f4ed33edeceb8f984c9105584154ca19b9047088644262b63ec0c8b97
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9e129070b2e11553)\system.config
          • Size 972B
          • SHA256 00b7e4cbebd373830c9c37e6e1312e7661d5cb6d49a18c263a59e8f96ad37321
          • MD5 SHA1 SHA512 TLSH

          MSI7A85.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A85.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A85.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A85.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A85.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A85.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7F39.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7F39.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 390KB
          • SHA256 c469358d585fa9f1637a02d194e162e454d90b8dc7e4939f88b36e09b04a7a96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\9e129070b2e11553\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 a282ddbf918cee0de15ea4e65e9756c1b5cb294da11d1719974bdb54a78536b7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIEB03.tmp

          • Path C:\Windows\Installer\MSIEB03.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          i2cwcx2d.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9e129070b2e11553)\i2cwcx2d.newcfg
          • Size 683B
          • SHA256 f946a3cc2a4f90196a3154cf2ecef8a47a3a2ab0d351077a6b8ce2abd8c2a059
          • MD5 SHA1 SHA512 TLSH

          nzpx32ek.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9e129070b2e11553)\nzpx32ek.newcfg
          • Size 881B
          • SHA256 8c559b6d66fb1de81e92b382d80438d11271ffaf1c0d5132f1079008b127438a
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (9e129070b2e11553)\user.config
          • Size 520B
          • SHA256 2b866d7c3401b6ae47bd1763b71a3f0716daa085102f019349f80fdb88a743a3
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 4a7fe53ab26a6218222124c3b57b3f022ec51f02b304fbb656af00e235007d07
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {cb0d5f25-8f40-4b54-846f-789870d21eb1}_OnDiskSnapshotProp

          • Path \??\Volume{e35b4427-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{cb0d5f25-8f40-4b54-846f-789870d21eb1}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 a33c7a9334d55fb3c5e9cdb091adeaa3c5613ac04fcdca8f953296abaca82939
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2376-7-0x0000000074420000-0x0000000074BDC000-memory.dmp

          memory/2376-1-0x0000000006560000-0x0000000006568000-memory.dmp

          memory/2376-12-0x0000000074420000-0x0000000074BDC000-memory.dmp

          memory/2376-2-0x0000000006580000-0x000000000658C000-memory.dmp

          memory/2376-10-0x0000000074420000-0x0000000074BDC000-memory.dmp

          memory/2376-3-0x0000000074420000-0x0000000074BDC000-memory.dmp

          memory/2376-8-0x0000000074420000-0x0000000074BDC000-memory.dmp

          memory/2376-4-0x0000000006600000-0x000000000675A000-memory.dmp

          memory/2376-0-0x0000000074432000-0x0000000074433000-memory.dmp

          memory/2376-5-0x0000000006790000-0x00000000067F8000-memory.dmp

          memory/2376-6-0x0000000006810000-0x00000000069F0000-memory.dmp

          memory/2376-9-0x0000000006FC0000-0x000000000757A000-memory.dmp

          memory/4576-45-0x0000000005A80000-0x0000000005C60000-memory.dmp

          memory/4576-33-0x00000000033A0000-0x00000000033CE000-memory.dmp

          memory/4576-37-0x00000000033D0000-0x00000000033DC000-memory.dmp

          memory/4576-41-0x0000000005740000-0x000000000589A000-memory.dmp

          memory/4872-152-0x0000000003C10000-0x0000000003C40000-memory.dmp

          memory/4872-158-0x0000000003EF0000-0x000000000404A000-memory.dmp

          memory/4872-170-0x0000000004050000-0x00000000040A0000-memory.dmp

          memory/4872-162-0x0000000004230000-0x0000000004410000-memory.dmp

          memory/4872-196-0x0000000004140000-0x00000000041DE000-memory.dmp

          memory/4872-201-0x0000000004600000-0x00000000046D6000-memory.dmp

          memory/4872-197-0x0000000004410000-0x00000000044A2000-memory.dmp

          memory/4872-199-0x00000000040A0000-0x00000000040E1000-memory.dmp

          memory/5404-75-0x0000000005E20000-0x0000000005E88000-memory.dmp

          memory/5412-219-0x00000000000F0000-0x0000000000286000-memory.dmp

          memory/5412-224-0x000000001B720000-0x000000001B900000-memory.dmp

          memory/5412-225-0x000000001B900000-0x000000001BA88000-memory.dmp

          memory/5412-226-0x0000000002570000-0x00000000025A0000-memory.dmp

          memory/5412-223-0x000000001B3E0000-0x000000001B53A000-memory.dmp

          memory/5412-222-0x0000000002700000-0x000000000279E000-memory.dmp