Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/09/2026, 00:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260910-am26tscj4t
  • SHA256 b06d9e9e36d2c2dd043400f7bd57aa791db7ef22b24a7122d1d1618e27eefc5e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 9 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 13 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 13 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • 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 WriteProcessMemory 10 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3308
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\fc7ecb2d419a46a9\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3720
  • 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 WriteProcessMemory
    PID:3336
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E58DE8B481B4EEADC6EF15FE2A2DAE0C C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID973.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240703937 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1840
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDE66.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240705156 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4648
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID809.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240769046 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3816
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3172
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4A4BD32EF06695BB18C5727BE7C0EF9B
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2688
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A09A35497B84A8B192481C5701E6CE58 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1288
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2892
    • C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-dlr656-relay.screenconnect.com&p=443&s=0fc6e9b2-fac4-4383-a92d-9d99195b1ee6&k=BgIAAACkAABSU0ExAAgAAAEAAQDNNjLAqcAUH0KiSG5DCetpjtSW0U78XQq1OehxRxSMZxQhdPN%2b5tlQin04z71GS%2bu3rA%2byjubfcLvcnwqSNAmC9KcKYmN8OWSyJTmHBfIQ7ch5be0ZspWovHpo7vdYPbkFan0tprRRnCYe%2brZx53dS0OGYVcKlWe5Bqi%2fqU0pZVvhaGSFPrYY%2fVjV0Hn09pQO69Mtg3nJdKoQ54NofW%2bqcA9kES6Y6DXKT2llazjF6EgZDPUHFftHG70%2b31pEsN6VOOgSrWXOn38KxH%2bTVrQJhg61TXgWNexx%2bPIssWOmX60uD77X5VuSEiYdsKxGEFZDwei3X4ZBgTd5zQWdDQOqu"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1032
      • C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.WindowsClient.exe" "RunRole" "0047dbe9-2be1-4821-8f32-186e858e01ac" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3528
      • C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.WindowsClient.exe" "RunRole" "c46a752d-81b8-469e-9a7e-3c8181e28725" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4300

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a105e.rbs

          • Path C:\Config.Msi\e5a105e.rbs
          • Size 214KB
          • SHA256 b1daf7e276dad399f09078883e4c0e4dc358b3154fd170c2aa9f3698596947a9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (fc7ecb2d419a46a9)\system.config
          • Size 964B
          • SHA256 ad55b6206400f10e70acb61a71ca654030182dbd0ddc66835990bc4816672aa1
          • MD5 SHA1 SHA512 TLSH

          1A374813EDB1A6631387E414D3E73232

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\1A374813EDB1A6631387E414D3E73232
          • Size 179KB
          • SHA256 fa91d9edbacda8b5bb3739564166da0350f8550bc186de93fbaf967c4207e1f3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          BA74182F76F15A9CF514DEF352303C95

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\BA74182F76F15A9CF514DEF352303C95
          • Size 862B
          • SHA256 7df1d36b95ace0c033153b62973469014c92e54639abffbfe0bc28cfc4d10d65
          • MD5 SHA1 SHA512 TLSH

          1A374813EDB1A6631387E414D3E73232

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\1A374813EDB1A6631387E414D3E73232
          • Size 306B
          • SHA256 a3223b0784265eee9232e032a56b58424120011ef2e349acbc293aeedb732ddf
          • MD5 SHA1 SHA512 TLSH

          BA74182F76F15A9CF514DEF352303C95

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\BA74182F76F15A9CF514DEF352303C95
          • Size 248B
          • SHA256 16d9efb1c4e7424b4abe04d93569fc96c1ea549ac05380e47b791fb2dc2abf51
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 746B
          • SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
          • MD5 SHA1 SHA512 TLSH

          MSID973.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSID973.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID973.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID973.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID973.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID973.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE66.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE66.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\fc7ecb2d419a46a9\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 21b3585e470e5bdcbc2eca4ba7ad5e39511248846db32f0d748661c4e5ad7cc2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI12AF.tmp

          • Path C:\Windows\Installer\MSI12AF.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          hsutqlzz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fc7ecb2d419a46a9)\hsutqlzz.newcfg
          • Size 882B
          • SHA256 abd798d180604938de9d372d1fc425b022a60fc3c6bba67caf04d1d23e334f84
          • MD5 SHA1 SHA512 TLSH

          p133nfto.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fc7ecb2d419a46a9)\p133nfto.newcfg
          • Size 683B
          • SHA256 3ce4952645517af6f2f363425810c8d386179ee7f1b1da99abf868687741edae
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fc7ecb2d419a46a9)\user.config
          • Size 520B
          • SHA256 9dd2e0cdd830c599252134ad59559abb01de6b85e2b5a85861e14f0e52e143c9
          • MD5 SHA1 SHA512 TLSH

          xiv1atls.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fc7ecb2d419a46a9)\xiv1atls.newcfg
          • Size 882B
          • SHA256 fd911a13951acaa0e18b1f9c03f58d7412f0477d9b4ebfe7df3be8506828d8da
          • MD5 SHA1 SHA512 TLSH

          memory/1032-208-0x00000000042C0000-0x0000000004352000-memory.dmp

          memory/1032-188-0x0000000003F80000-0x0000000003FD0000-memory.dmp

          memory/1032-165-0x0000000003D90000-0x0000000003DAA000-memory.dmp

          memory/1032-171-0x0000000003E50000-0x0000000003EE6000-memory.dmp

          memory/1032-212-0x00000000044A0000-0x0000000004576000-memory.dmp

          memory/1032-210-0x0000000003FD0000-0x0000000004011000-memory.dmp

          memory/1032-175-0x00000000040A0000-0x0000000004250000-memory.dmp

          memory/1032-207-0x0000000004250000-0x00000000042BC000-memory.dmp

          memory/1840-43-0x0000000002620000-0x000000000262C000-memory.dmp

          memory/1840-39-0x00000000025F0000-0x000000000261E000-memory.dmp

          memory/1840-47-0x0000000004A20000-0x0000000004AB6000-memory.dmp

          memory/1840-51-0x0000000004C70000-0x0000000004E20000-memory.dmp

          memory/3308-8-0x0000000006090000-0x00000000060A0000-memory.dmp

          memory/3308-7-0x0000000006810000-0x0000000006DB4000-memory.dmp

          memory/3308-6-0x00000000060A0000-0x0000000006250000-memory.dmp

          memory/3308-1-0x0000000002120000-0x0000000002128000-memory.dmp

          memory/3308-0-0x0000000006090000-0x00000000060A0000-memory.dmp

          memory/3308-5-0x0000000006060000-0x0000000006088000-memory.dmp

          memory/3308-4-0x0000000005FD0000-0x0000000006066000-memory.dmp

          memory/3308-3-0x0000000002140000-0x000000000214C000-memory.dmp

          memory/3308-2-0x0000000006090000-0x00000000060A0000-memory.dmp

          memory/3528-227-0x0000000000D10000-0x0000000000DC0000-memory.dmp

          memory/3528-228-0x000000001B8F0000-0x000000001B95C000-memory.dmp

          memory/3528-229-0x000000001BC80000-0x000000001BD16000-memory.dmp

          memory/3528-230-0x000000001BED0000-0x000000001C080000-memory.dmp

          memory/3528-231-0x0000000003060000-0x000000000307A000-memory.dmp

          memory/3528-232-0x000000001C210000-0x000000001C396000-memory.dmp

          memory/4648-83-0x0000000005040000-0x0000000005068000-memory.dmp