Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 18:25

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260910-w2w41sfl2t
  • SHA256 026792544ce9a1f395f92c257e3b18e47c05b5d5bea137df9f48c8fbb59daea1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 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.

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • 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 12 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:908
  • 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:4168
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C73B15500BAC24E138B0185BA1A7F305 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4732
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID8B7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240704078 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3936
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDE37.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240705109 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3156
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE377.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240706453 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4952
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:672
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3CC46C47E4C91367B85F49DE9A6D6982
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2652
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 75033250B05959E9D7B57B5C2E34F5CE E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3532
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4488
    • C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-kivhhx-relay.screenconnect.com&p=443&s=2f5b7ada-2e59-470c-879e-9091ca26ff5d&k=BgIAAACkAABSU0ExAAgAAAEAAQCNG33CGpWR%2b8kXFwfxERsEukBQR5qxfca1dGZohk%2fEF24Ybz%2flbzs%2fPtlcNHmROj7V8hlemS9MGsvx0SC040%2bSdNtSg1KI2wyxLcxgyX9BnIIO5qzvsfDQ9qiwGDGQD87%2bYhpH6VcBrUiZE4Jqm2ry7ccjJIDkipoF10DMltDWVN4fmuhW9UotK2JqRZyRrYR9BhFX4yyzOnfDtrdEhpefYP20OAnWCGjA2Thwa4I66Y2YWiO0Oo6ubmVyG309FpMHfFXJ0Ar%2f0mJGFIJmzQqgbKmbE9LSdSyyT82Pe5zlhoe8vAlpjegxF2XnWyun42XeOXuaybgnnUmSE6C73d%2fI"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4160
      • C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.WindowsClient.exe" "RunRole" "46f54cda-6948-4a4d-b694-e2e848af4f12" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4396
      • C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.WindowsClient.exe" "RunRole" "05d1cdaa-f4e0-403a-802a-04e525a4dbbf" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4700

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e593c64.rbs

          • Path C:\Config.Msi\e593c64.rbs
          • Size 214KB
          • SHA256 5c1cc34030dec9f96f75df657ab6db5967fe3e57202ea824534ee90404ed06d5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (00c74cea44d339cd)\system.config
          • Size 960B
          • SHA256 626be93e258110126c102d5e35fb901579bf323adb355fbc3be3da7801e5a774
          • MD5 SHA1 SHA512 TLSH

          MSID8B7.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSID8B7.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID8B7.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID8B7.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID8B7.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID8B7.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE37.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE37.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI4492.tmp

          • Path C:\Windows\Installer\MSI4492.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e593c63.msi

          • Path C:\Windows\Installer\e593c63.msi
          • Size 9.8MB
          • SHA256 026792544ce9a1f395f92c257e3b18e47c05b5d5bea137df9f48c8fbb59daea1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          px0x1djz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (00c74cea44d339cd)\px0x1djz.newcfg
          • Size 879B
          • SHA256 4b5153060f0ccac2c26e9d6948881b291e26163ee62d0d6fa550c2d9238bf4e0
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (00c74cea44d339cd)\user.config
          • Size 683B
          • SHA256 7ed1e100d26661785a38efca6f057fa2824b7ce968f10025f37d66808156f15e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (00c74cea44d339cd)\user.config
          • Size 520B
          • SHA256 3a6dc34c7079f4a18aad88dd90d0da51a3620460a838071565a99e21b01dfb08
          • MD5 SHA1 SHA512 TLSH

          zashof5g.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (00c74cea44d339cd)\zashof5g.newcfg
          • Size 879B
          • SHA256 8abdb28fb09f4372251a087b01ff65ac194f4d0495f838fe8411643afba238b8
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 9375a27c2ec3d977555acdfcff87223aca75948d46be7ae7a9f55319829d4334
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {79cc37eb-11aa-4f08-9466-0bc0667036da}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{79cc37eb-11aa-4f08-9466-0bc0667036da}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 47c79827898e72359c29b72c6773c0fb1d5beb2b4be56162d484347a208de680
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3156-64-0x00000000036B0000-0x00000000036D8000-memory.dmp

          memory/3936-34-0x0000000006280000-0x000000000683A000-memory.dmp

          memory/3936-25-0x00000000036D0000-0x00000000036DC000-memory.dmp

          memory/3936-21-0x0000000003690000-0x00000000036BE000-memory.dmp

          memory/3936-29-0x0000000005800000-0x0000000005896000-memory.dmp

          memory/3936-33-0x0000000005B10000-0x0000000005CC0000-memory.dmp

          memory/4160-188-0x0000000004C10000-0x0000000004CE6000-memory.dmp

          memory/4160-143-0x0000000001E00000-0x0000000001E1A000-memory.dmp

          memory/4160-186-0x00000000048A0000-0x00000000048E1000-memory.dmp

          memory/4160-184-0x0000000004A20000-0x0000000004AB2000-memory.dmp

          memory/4160-183-0x0000000004910000-0x000000000497C000-memory.dmp

          memory/4160-157-0x0000000004850000-0x00000000048A0000-memory.dmp

          memory/4160-153-0x00000000046A0000-0x0000000004850000-memory.dmp

          memory/4160-149-0x0000000004450000-0x00000000044E6000-memory.dmp

          memory/4396-206-0x0000000000100000-0x00000000001B0000-memory.dmp

          memory/4396-207-0x000000001ADD0000-0x000000001AE3C000-memory.dmp

          memory/4396-210-0x000000001B3E0000-0x000000001B590000-memory.dmp

          memory/4396-211-0x00000000022D0000-0x00000000022EA000-memory.dmp

          memory/4396-212-0x000000001B720000-0x000000001B8A8000-memory.dmp

          memory/4396-208-0x000000001B190000-0x000000001B226000-memory.dmp