Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/10/2026, 18:12

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 23.4MB
  • Sample261020-wtaaaacf73
  • SHA256 9dc82b40c40ff9d91d3484ac6d458cc4191208bd07f034b34f690ca9f2746790
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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 10 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 17 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).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 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.

  • 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 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 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:4780
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\c43f51010b2eefca\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:2804
  • 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:3264
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3BDF4783187606AB384F1E7B52CD2052 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2104
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEB45.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240708515 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4872
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF171.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240710015 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:208
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF6E0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240711421 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4928
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1052
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A52E0767172DCB79374DE46FF85347E5
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1404
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 46E8B56CD7631A23FB2F1918DE0B19AF E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:632
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:412
    • C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-nfykfw-relay.screenconnect.com&p=443&s=4e8016bb-f74b-4f36-9476-c36796d1da0e&k=BgIAAACkAABSU0ExAAgAAAEAAQABV4YXHjRKLEJlwg3PzkC6vOKVIyGc66V0smpfao%2fkP3aqa2q%2fDA4IdzAklUjbW6uvT8FheN90XKKv5OLxqWCe%2bSSbW24BnGG2fHGG3FytsV3npR1F6qT4G4LVHq4XCt5CiHPCxaSkbWhhvh%2fdO0URycQQVOwprH7YFs3fbfxWQbIvSroWuvuv82x1oNi0An8S5nn6PTL%2feFVnJR36RCZYMU7VMGP6wZFrZVeEk09mqVaQwZm6xlmuUwMCfUHhskCDCifiO3hzkuLON97P2gfxY%2ftFU02xwTYtaSBw8DShDaZuPUFrZOlJdk%2fBEVvJG9%2b6bPGimNR4NwfQGInyG%2b%2fK"
      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:2812
      • C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsClient.exe" "RunRole" "fdbae056-e95a-4d3e-9b0a-0e7d10fedf63" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3396
      • C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsClient.exe" "RunRole" "0b65bba8-e7a1-4d2e-a071-f1e37a1c7d8e" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1856

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e593669.rbs

          • Path C:\Config.Msi\e593669.rbs
          • Size 214KB
          • SHA256 ad42432bf2cc4eadadb3e039830a57ada58c415d5784c206f8b1cda407037b56
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\system.config
          • Size 964B
          • SHA256 b64671f55a603384d1864e28a41dce393341afefd0f6c37a86ceb3c4d7d69daf
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 9732f03480ba7aa7c68b2bf5a6b4e5ac8ab3ca6a019a7a4d51d063de8374a973
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 c7ee00eb60772fca16236a7e5c8742754ac233935178d5f415ac084d693072a5
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 bac9925fd0d774f458415f85836d493bc6c2a6e1d47db6bdfc790e59afa6df76
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 d242b3dbcb104e2af84541bbacb7826c403f5912ce2cfc73ac5ffabf2b108d79
          • 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

          MSIEB45.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEB45.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEB45.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEB45.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEB45.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEB45.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF171.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF171.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\c43f51010b2eefca\ScreenConnect.ClientSetup.msi
          • Size 19.8MB
          • SHA256 2eb910bb665e8613e96684c50ebb717df10d2707d8368426c9a1fced5abd7449
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI38F9.tmp

          • Path C:\Windows\Installer\MSI38F9.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ick0yzap.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c43f51010b2eefca)\ick0yzap.newcfg
          • Size 883B
          • SHA256 21e979189bdba9e253f9a4c0b932131449a6988f0408f897bd72a7313cb9ed72
          • MD5 SHA1 SHA512 TLSH

          p1v5necq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c43f51010b2eefca)\p1v5necq.newcfg
          • Size 683B
          • SHA256 88a2a7fa22f2413dd94199f185632efb51d3e5ea8561fe510ce406ee5deacb2b
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c43f51010b2eefca)\user.config
          • Size 520B
          • SHA256 2c5041635e5ee7a7fee68f2d04def2ebd4954f4b3650125877a6432cfa496b4e
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 f3bd45d2a5f8199c8c957490a31943755ccb49f043b2686aa35e4fa902cf3e06
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {2d383ea6-1737-4acd-b89c-342f2ebfe6b9}_OnDiskSnapshotProp

          • Path \??\Volume{c9561ee0-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{2d383ea6-1737-4acd-b89c-342f2ebfe6b9}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 491c976f365e97544692c7e74784ce696bef392bc30d52fcc11a0e413ba241db
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/208-82-0x0000000002D30000-0x0000000002D98000-memory.dmp

          memory/2812-189-0x00000000040B0000-0x0000000004100000-memory.dmp

          memory/2812-210-0x00000000043C0000-0x000000000445E000-memory.dmp

          memory/2812-211-0x0000000004460000-0x00000000044F2000-memory.dmp

          memory/2812-166-0x0000000003C70000-0x0000000003CA0000-memory.dmp

          memory/2812-172-0x0000000003E00000-0x0000000003F5A000-memory.dmp

          memory/2812-215-0x0000000004640000-0x0000000004716000-memory.dmp

          memory/2812-176-0x0000000004140000-0x0000000004320000-memory.dmp

          memory/2812-213-0x0000000004060000-0x00000000040A1000-memory.dmp

          memory/3396-235-0x000000001D280000-0x000000001D406000-memory.dmp

          memory/3396-229-0x0000000000AF0000-0x0000000000C86000-memory.dmp

          memory/3396-230-0x000000001B770000-0x000000001B80E000-memory.dmp

          memory/3396-233-0x000000001BCB0000-0x000000001BE0A000-memory.dmp

          memory/3396-234-0x000000001BFF0000-0x000000001C1D0000-memory.dmp

          memory/3396-236-0x000000001B910000-0x000000001B940000-memory.dmp

          memory/4780-1-0x00000000023F0000-0x00000000023F8000-memory.dmp

          memory/4780-4-0x00000000062F0000-0x000000000644A000-memory.dmp

          memory/4780-3-0x0000000002410000-0x000000000241C000-memory.dmp

          memory/4780-5-0x0000000006480000-0x00000000064E8000-memory.dmp

          memory/4780-2-0x00000000023D0000-0x00000000023E0000-memory.dmp

          memory/4780-0-0x00000000023D0000-0x00000000023E0000-memory.dmp

          memory/4780-6-0x0000000006500000-0x00000000066E0000-memory.dmp

          memory/4780-7-0x0000000006CA0000-0x0000000007244000-memory.dmp

          memory/4872-38-0x0000000002720000-0x000000000274E000-memory.dmp

          memory/4872-42-0x0000000004AB0000-0x0000000004ABC000-memory.dmp

          memory/4872-46-0x0000000004C60000-0x0000000004DBA000-memory.dmp

          memory/4872-50-0x0000000004FA0000-0x0000000005180000-memory.dmp