Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 12:22

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260930-pj1k6afa89
  • SHA256 4fd154b157eddba5cabbcd5883c72da50ffd6117951a61327ba6f95497b1ee0d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 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 47 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 17 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 SetWindowsHookEx 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4336
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\1c1c580a6b6eec46\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:3216
  • 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:4728
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F8C3EC5253F41203207F33CFC69A3BA4 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4900
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB5C9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240760437 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2796
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB916.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240761781 11 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:5676
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC25E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240763515 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1724
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1244
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5BE779FD2077F020CFE163F63B5CC3E2
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5608
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DA8BF82D26F92DF22AD90C8ED65230CC E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2072
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2008
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:3204
      • C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.ClientService.exe
        "C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-uamqxa-relay.screenconnect.com&p=443&s=f3a7595c-1fb9-47ad-99ed-b73633a42978&k=BgIAAACkAABSU0ExAAgAAAEAAQDV6gSUcD9h9tr7Gd1s89GULIWP8YQ%2f8dOIR4oAKz3%2f7kBlsAaDP%2bsjnQLdX0T1BfeWbFOBYtamwJZaF996VMA1PKCt27DKg0%2fkj10skOA%2f8ZZbqGhubIWFS9hLgOJas2QofO0g0TtPhilXtQeHC9cXJZ%2fAV83hp7IvFPO2QP2rwkfkL%2fQthTPu%2b2C6HnKVzp39Ok9ICslCFgJRS%2bR7ClBwxDO97H2j7dn8HjfltbgWvoFaU37lxWLYwPP%2fy6qY%2b0OQf6z61K5jWppCkBhDd0tOSPDrTEGEm4WHlwXpYFuWpyOCC%2fN31dW47DVIEGak9kShQxuNM15XgvNUyUoGwpPB&c=far&c=04&c=04&c=05&c=&c=&c=&c="
        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:1940
        • C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe" "RunRole" "cd94d3d4-f8b0-410c-8c10-b5bdd7ed1312" "User"
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:3020
        • C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe
          "C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe" "RunRole" "ea6229fc-36a1-48c6-a7e3-ee6cc7989642" "System"
          2⤵
          • 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:4988

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e5a226f.rbs

            • Path C:\Config.Msi\e5a226f.rbs
            • Size 214KB
            • SHA256 123ebf3efef0d1f5c79d3a5550f31c7b2b77480665e9d705e2d9029b95774a26
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\Client.en-US.resources
            • Size 64KB
            • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\Client.resources
            • Size 6KB
            • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.ClientService.dll
            • Size 92KB
            • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.Core.dll
            • Size 582KB
            • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe
            • Size 685KB
            • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 837KB
            • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\system.config
            • Size 968B
            • SHA256 c779951929eccc8de878f61e374294992ba0b57eef312c3880c60ec851251394
            • MD5 SHA1 SHA512 TLSH

            MSIB5C9.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB5C9.tmp
            • Size 1.1MB
            • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB5C9.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB5C9.tmp-\ScreenConnect.Core.dll
            • Size 572KB
            • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB5C9.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB5C9.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB916.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSIB916.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\1c1c580a6b6eec46\ScreenConnect.ClientSetup.msi
            • Size 9.8MB
            • SHA256 324152b3efa8021ef6afd8a5de951ecd63ff893cc994609c41eaf47de52847df
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI2A4E.tmp

            • Path C:\Windows\Installer\MSI2A4E.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            awyiamsb.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c1c580a6b6eec46)\awyiamsb.newcfg
            • Size 881B
            • SHA256 e1972afa540268395e63eb2e94fc3e933c419d590cc68502158b1f115554b5f5
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c1c580a6b6eec46)\user.config
            • Size 683B
            • SHA256 8a2d576b536c39582a5cf13d9eeb24dd04304b232a4fcc1f4b110da064e8aae6
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c1c580a6b6eec46)\user.config
            • Size 520B
            • SHA256 157a0bb5d0102532d0874207bd1c233b03d7a152ce3b972dc01c2b66eba4a13e
            • MD5 SHA1 SHA512 TLSH

            memory/1940-154-0x0000000001950000-0x000000000196A000-memory.dmp

            memory/1940-199-0x00000000047D0000-0x00000000048A6000-memory.dmp

            memory/1940-197-0x00000000041C0000-0x0000000004201000-memory.dmp

            memory/1940-195-0x00000000045E0000-0x0000000004672000-memory.dmp

            memory/1940-160-0x00000000040D0000-0x0000000004166000-memory.dmp

            memory/1940-164-0x00000000043C0000-0x0000000004570000-memory.dmp

            memory/1940-194-0x0000000004570000-0x00000000045DC000-memory.dmp

            memory/1940-177-0x0000000004170000-0x00000000041C0000-memory.dmp

            memory/2796-39-0x0000000003AD0000-0x0000000003ADC000-memory.dmp

            memory/2796-35-0x0000000003A90000-0x0000000003ABE000-memory.dmp

            memory/2796-47-0x0000000005E50000-0x0000000006000000-memory.dmp

            memory/2796-43-0x0000000005C00000-0x0000000005C96000-memory.dmp

            memory/3020-221-0x000000001B390000-0x000000001B540000-memory.dmp

            memory/3020-219-0x0000000002300000-0x000000000236C000-memory.dmp

            memory/3020-220-0x000000001B140000-0x000000001B1D6000-memory.dmp

            memory/3020-224-0x00000000022B0000-0x00000000022F1000-memory.dmp

            memory/3020-222-0x0000000002290000-0x00000000022AA000-memory.dmp

            memory/3020-217-0x0000000000090000-0x0000000000140000-memory.dmp

            memory/3020-223-0x000000001B6D0000-0x000000001B858000-memory.dmp

            memory/4336-4-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/4336-13-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/4336-3-0x0000000005D00000-0x0000000005D96000-memory.dmp

            memory/4336-2-0x0000000003660000-0x000000000366C000-memory.dmp

            memory/4336-5-0x0000000005D90000-0x0000000005DB8000-memory.dmp

            memory/4336-1-0x0000000003640000-0x0000000003648000-memory.dmp

            memory/4336-0-0x00000000750C2000-0x00000000750C3000-memory.dmp

            memory/4336-6-0x0000000005DD0000-0x0000000005F80000-memory.dmp

            memory/4336-7-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/4336-8-0x0000000006540000-0x0000000006AFA000-memory.dmp

            memory/4336-9-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/4336-11-0x00000000750B0000-0x000000007586C000-memory.dmp

            memory/5676-77-0x0000000003540000-0x0000000003568000-memory.dmp