Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/08/2026, 12:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260820-pfs2xazthy
  • SHA256 10de7dbb4b67064d3dde4e2290916ae4cd7bdddb4b32f264921482616e273f0f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 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 12 IoCs
  • Suspicious use of SendNotifyMessage 10 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:2892
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\ecfe7b8019204664\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:3984
  • 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:3884
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 33C98A95EAA7EE277ECE1973575891A3 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3644
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI608A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240672984 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:916
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI64E0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240674046 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4108
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI69D3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240675390 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4780
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2168
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 77DDD81628A0EC6B92F0A2B56FEE46F3
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2452
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 64777A5B9FBEB6AD41E54B965F33F6A9 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3272
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1736
    • C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-hpeync-relay.screenconnect.com&p=443&s=baf23920-f90d-4d0c-94b3-d1099d5ce29e&k=BgIAAACkAABSU0ExAAgAAAEAAQAVRSgj8qh9GEQMEdpXYB3ez0P27BcECuYqkgr2ma7AG%2b4Y0Fshj1UcelSmHfbfKD0PE4qAvV%2fOuTju2VlBb7gx4KFTAFbBSXrjMzdu22WsTn7a5jLCAPBWstwull09MpjuHLcPwUakbqxLGAAAYB1r38j%2bLDkC%2ffC3rHeIG0SDXLouIsUrowhq2jrT0qTMssX5ajAL6WEtAxmmmF4Zq1pB00uhB3nZz26XDqVRJyekC7B0jo3NfXjPzcxGUun%2bRIrUYmZhsZdpMIT4yAAnkdW9frTGJkVabXqnvzh2zywAREilooaGTMl3JtQYfRlj0QSqnzpYbF9Ep3KE3yCSlMLc&c=PAPhnt&c=&c=&c=&c=&c=&c=&c="
      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:4812
      • C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe" "RunRole" "66e24d0a-681f-424f-9ea7-f09442dec9b4" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1468
      • C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsClient.exe" "RunRole" "15d05b73-ed2f-4e5a-88c6-0586b9334de7" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1988

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58b31f.rbs

          • Path C:\Config.Msi\e58b31f.rbs
          • Size 214KB
          • SHA256 734d286ab3ad13bb8c52462103ef230f904c7a31bf3388ffe2f5c4a090746928
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ecfe7b8019204664)\system.config
          • Size 954B
          • SHA256 863adb0d672294ea9d02719e82c04abbcb34f514ac0d5035d708abb88bab6d79
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 cfa2b83cca49e8ef72ba8846bb55176996bd8b8c1aadab08ee5652b18dc0823f
          • MD5 SHA1 SHA512 TLSH

          BA74182F76F15A9CF514DEF352303C95

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\BA74182F76F15A9CF514DEF352303C95
          • Size 737B
          • SHA256 fb76c37ab5c997bfae0e354411f260682e9f2a9c533a1969dbcc999b3ad34142
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 093dbc70aea36946212e8af0470626b9219006be4295a1a4889b1f040b454bf9
          • MD5 SHA1 SHA512 TLSH

          BA74182F76F15A9CF514DEF352303C95

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\BA74182F76F15A9CF514DEF352303C95
          • Size 248B
          • SHA256 507593fa5514c171d13dd87ee27ce60a7468a9487f29add84002c33ef1da51b1
          • 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

          MSI608A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI608A.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI608A.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI608A.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI608A.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI608A.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64E0.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64E0.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\ecfe7b8019204664\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 3f6d56a7f35fe8a669ba26019b2333457354f968094cf00acff93376d27672b7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB552.tmp

          • Path C:\Windows\Installer\MSIB552.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          arosttnt.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ecfe7b8019204664)\arosttnt.newcfg
          • Size 884B
          • SHA256 25b95d489fe9685e6d4cd0b5f2007665579a908c52bf110b2f0d8f848598a8e6
          • MD5 SHA1 SHA512 TLSH

          g0a5ayf2.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ecfe7b8019204664)\g0a5ayf2.newcfg
          • Size 884B
          • SHA256 b82fb415bf93f0ccc49dbd94bc2c7a207a69f4772b266f821821bcdb43d47c3d
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ecfe7b8019204664)\user.config
          • Size 520B
          • SHA256 e278b97113dffda01e1dbbc30cb700e93b66c31e1542304c894edf2ed8b40f51
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ecfe7b8019204664)\user.config
          • Size 683B
          • SHA256 9ac7330d2f23547d5c92aae243fd03160d86ca33ecef858097d067216c0314d9
          • MD5 SHA1 SHA512 TLSH

          memory/916-41-0x00000000055A0000-0x00000000055CE000-memory.dmp

          memory/916-49-0x00000000056F0000-0x0000000005784000-memory.dmp

          memory/916-45-0x00000000055E0000-0x00000000055EC000-memory.dmp

          memory/916-53-0x0000000005940000-0x0000000005AF0000-memory.dmp

          memory/1468-231-0x000000001BFF0000-0x000000001C1A0000-memory.dmp

          memory/1468-230-0x000000001BDA0000-0x000000001BE34000-memory.dmp

          memory/1468-228-0x000000001B820000-0x000000001B88C000-memory.dmp

          memory/1468-233-0x000000001D3E0000-0x000000001D566000-memory.dmp

          memory/1468-232-0x0000000002E90000-0x0000000002EAA000-memory.dmp

          memory/1468-224-0x0000000000D80000-0x0000000000E2E000-memory.dmp

          memory/2892-7-0x0000000005F40000-0x00000000064E4000-memory.dmp

          memory/2892-5-0x0000000001830000-0x0000000001858000-memory.dmp

          memory/2892-4-0x00000000056C0000-0x0000000005754000-memory.dmp

          memory/2892-1-0x0000000000910000-0x0000000000918000-memory.dmp

          memory/2892-0-0x00000000057D0000-0x00000000057E0000-memory.dmp

          memory/2892-6-0x00000000057E0000-0x0000000005990000-memory.dmp

          memory/2892-8-0x00000000057D0000-0x00000000057E0000-memory.dmp

          memory/2892-3-0x00000000017B0000-0x00000000017BC000-memory.dmp

          memory/2892-2-0x00000000057D0000-0x00000000057E0000-memory.dmp

          memory/4108-85-0x0000000005320000-0x0000000005348000-memory.dmp

          memory/4812-196-0x0000000004770000-0x0000000004802000-memory.dmp

          memory/4812-200-0x0000000004950000-0x0000000004A26000-memory.dmp

          memory/4812-198-0x00000000043C0000-0x0000000004401000-memory.dmp

          memory/4812-195-0x0000000004430000-0x000000000449C000-memory.dmp

          memory/4812-178-0x0000000004370000-0x00000000043C0000-memory.dmp

          memory/4812-176-0x0000000004520000-0x00000000046D0000-memory.dmp

          memory/4812-172-0x0000000004250000-0x00000000042E4000-memory.dmp

          memory/4812-166-0x0000000001B60000-0x0000000001B7A000-memory.dmp