Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/07/2026, 01:06

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.7MB
  • Sample260719-bf5ttabv9x
  • SHA256 0afb8fffd99b8b95643d2b3a1a1f1963e7c0d52995ed74fc4207693d8f58028f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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 2 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 21 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 23 IoCs
  • Suspicious use of SendNotifyMessage 21 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\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:3124
  • 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:5980
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A461EC17092DD58E86EE498C8A098C64 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3252
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE19C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240771796 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3348
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE6FC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240772875 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1136
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE226.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240837296 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5464
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1412
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5337A11CF792C21E4F9A199D67655586
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:6028
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A73BC58DFDA4CB45570C4619DEEBB8E5 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2068
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5268
    • C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-xfy1jh-relay.screenconnect.com&p=443&s=7ab8ca43-287f-4850-9863-2b896a1e6e07&k=BgIAAACkAABSU0ExAAgAAAEAAQAhSvNMoIsCC0VDrv%2bIBaO4mYNnoI3N9QzFnxrtH8TJEI9xp%2faKrWzrzRq0NOenKvl4DZzH29%2f3%2bPN4Ic6oOQxOHE6H6j0ctZPVlfcmhPzQ%2f4a9lSpm%2fppXBH%2b9EFpv5LpiG7pOjcHehxXwUyTWLHV5c4HEgEP7wFieN97h3QapultrErxR%2bM2enfyJHGj8CBPfv%2fQVv10fV6ZLmu2N8ILtHLhMMy%2bOpTH5QhjQhIx7gaSCvkEEyXVGDEMa1T90qL7rkCjsUTFz7ltgMz0iYeZLbK6APoCytxzJ7H%2f3YJwexmYDFp8H%2fDimYzKeNdhxfd0pkun5UzJaa%2bAgxCvfktPd&c=Desktop&c=&c=&c=&c=&c=&c=&c="
      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:2600
      • C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.WindowsClient.exe" "RunRole" "638fb31e-2fae-47ef-b98c-e14e95e51d78" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5892

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5b2400.rbs

          • Path C:\Config.Msi\e5b2400.rbs
          • Size 214KB
          • SHA256 43f5fd0d7912fe6dfa3a35c324348f4ad36ef63d3a1a257720d71504bd492360
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\Client.en-US.resources
          • Size 64KB
          • SHA256 efdb0b4fcc38b52cbf72336bd107a814db8454003f3495de21e2026a148823ea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.Client.dll
          • Size 411KB
          • SHA256 28ff8468ad2db8b41fe9d9a2971dd56fea0aecad14808fe4b31c9b1072d3b129
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.ClientService.dll
          • Size 90KB
          • SHA256 9cf2c77df0a1a1e854ec1bbc6940d96f508bfb4b0555a07657c77314803a717e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 01341bd42426c3d110136cc94433df00dbad690a56593f7cca41a93f698f214a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 92e831159d5e9f2676241ab7ce80060a0b1dc34684f83797aec93b3ecff41139
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 2292aac48ad575c6d1ed99c862e3408e254db34b8fea50cf3594aa08f3e875d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.WindowsClient.exe
          • Size 665KB
          • SHA256 6e95d68102dc761942e67e2337ad8e49d32ee7c8943340489a01e2c56ea6e00b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 3fa1fe4a588015cc94eceb06867f16a5e562293139fbf6b36bde21dba478968d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (76118872cae6338d)\system.config
          • Size 970B
          • SHA256 6462fe037885bde1fcbdfdb1ae0a73efe812599f909ad4ad13ae59fb75465cd0
          • MD5 SHA1 SHA512 TLSH

          MSIE19C.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE19C.tmp
          • Size 1.1MB
          • SHA256 cd6bccce073b2a5205840ec31c91df0d443cc57c68756de2c03e21db8e3fc157
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE19C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE19C.tmp-\ScreenConnect.Core.dll
          • Size 562KB
          • SHA256 c51a2b5cb5054ec0136e332bf290c8af3392d7936b5137a07423df08ab33d264
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE19C.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 432abf3a198ff64fb2c660eb06b2bb33a16cf69fd28d836cfcb65c43d37dc462
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE19C.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 10933424536d53e397f651915f862c933199c50722943c236b020787b2e8f147
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE6FC.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE6FC.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 528242c7745783b3b4ae72fec13bb9bd49b17b0e00f60c027351147f21fdd359
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI2A2A.tmp

          • Path C:\Windows\Installer\MSI2A2A.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5b23ff.msi

          • Path C:\Windows\Installer\e5b23ff.msi
          • Size 9.7MB
          • SHA256 0afb8fffd99b8b95643d2b3a1a1f1963e7c0d52995ed74fc4207693d8f58028f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dd20xcxj.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76118872cae6338d)\dd20xcxj.newcfg
          • Size 588B
          • SHA256 f6cbc44bc2137a68ae332e73454c2cdcbb91c913ca3ec187fe5c63852991a002
          • MD5 SHA1 SHA512 TLSH

          ds22nzfy.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76118872cae6338d)\ds22nzfy.newcfg
          • Size 588B
          • SHA256 77ad3a207d2fb78557f2263b4e17e1845e27e176fddd4ece91c84a866be1d87b
          • MD5 SHA1 SHA512 TLSH

          paex1d4n.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76118872cae6338d)\paex1d4n.newcfg
          • Size 588B
          • SHA256 7291090df6cdf53ba6312823f3fc5585ac05c395e53cca10e326ee44041cbebd
          • MD5 SHA1 SHA512 TLSH

          uliz3wrm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76118872cae6338d)\uliz3wrm.newcfg
          • Size 588B
          • SHA256 83fae5eb3f6e3facae13a71a888f7ba252cbd9bd49f9ed1716e695de710b6698
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76118872cae6338d)\user.config
          • Size 588B
          • SHA256 149bdde87819828ff4b102bcaf2e42c8ccff723dbfc73c1e7e82dc04c52dec37
          • MD5 SHA1 SHA512 TLSH

          vrk2pt30.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76118872cae6338d)\vrk2pt30.newcfg
          • Size 588B
          • SHA256 bbbcd5c5231cf30e71d570f7f401ee662855b8b5059dc72119d7f8c3568357c8
          • MD5 SHA1 SHA512 TLSH

          xihn4sg3.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (76118872cae6338d)\xihn4sg3.newcfg
          • Size 588B
          • SHA256 41b849e2157255984812d4b2340796e5bff09486042ed02bc3ffc237d50868a7
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 713aac60f7ad7802e93cbe21ba89d16e1728eb3286b245307ec6b7f90ca73ad5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {653d2c1a-8c7a-4655-959d-d36f24055b2d}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{653d2c1a-8c7a-4655-959d-d36f24055b2d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 57b38aacf8775239bf853b0e9e5eb5772793af8dae5948bbdf6eb6fa659bb718
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1136-64-0x00000000033F0000-0x0000000003418000-memory.dmp

          memory/2600-171-0x0000000004840000-0x0000000004881000-memory.dmp

          memory/2600-174-0x0000000004E10000-0x0000000004EE5000-memory.dmp

          memory/2600-148-0x0000000004610000-0x00000000046A4000-memory.dmp

          memory/2600-154-0x0000000004890000-0x00000000048E0000-memory.dmp

          memory/2600-142-0x0000000004550000-0x000000000456A000-memory.dmp

          memory/2600-158-0x0000000004B10000-0x0000000004B7A000-memory.dmp

          memory/2600-165-0x0000000004C20000-0x0000000004CB2000-memory.dmp

          memory/2600-152-0x00000000048F0000-0x0000000004AA0000-memory.dmp

          memory/3348-25-0x0000000004080000-0x000000000408C000-memory.dmp

          memory/3348-21-0x0000000004040000-0x000000000406E000-memory.dmp

          memory/3348-29-0x00000000041E0000-0x0000000004274000-memory.dmp

          memory/3348-33-0x00000000064D0000-0x0000000006680000-memory.dmp

          memory/3348-34-0x0000000006C40000-0x00000000071FA000-memory.dmp

          memory/5892-183-0x000000001B420000-0x000000001B48A000-memory.dmp

          memory/5892-188-0x0000000002990000-0x00000000029AA000-memory.dmp

          memory/5892-187-0x0000000002810000-0x000000000282A000-memory.dmp

          memory/5892-186-0x000000001BDC0000-0x000000001BF48000-memory.dmp

          memory/5892-185-0x000000001BA80000-0x000000001BC30000-memory.dmp

          memory/5892-184-0x000000001B830000-0x000000001B8C4000-memory.dmp

          memory/5892-182-0x0000000000740000-0x00000000007EA000-memory.dmp