Analysis

  • max time kernel
    149s
  • max time network
    158s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 12:20

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260722-phyeea1vet
  • SHA256 1baa9dffe816824c92456ba687d71c03d248a51dbdd504bf84c9de026ce76c3d
  • 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.

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 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
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4384
  • 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:5912
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 80F75A8C02288F86E9EFFD77AA2FFCC8 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3248
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID807.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240769406 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4280
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDF8A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240771500 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4944
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE920.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240773640 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5584
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5844
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 30897303EFB356B5705A0E98A8BCA5B2
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:948
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9157B14B8E1E4B40D508AD48175722BC E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2884
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5040
    • C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-qvtg7w-relay.screenconnect.com&p=443&s=f8155009-51d8-4d2f-bba2-4f4ea9e67550&k=BgIAAACkAABSU0ExAAgAAAEAAQBRZ6YvoayUk%2bImyU6FmSvCzmFoGoUbueBdUskUsyxYuPiKJ%2fQ%2fyhxcf01uMlcd6x72HmWzKGFkk7JOt%2flygk3s%2bpuWXr%2bEOZHAVFNKf5A5TdFi%2fqQlornkj94tBtIW%2bsisOmHBB%2fKNIeF%2bweYst04s8Uwn03SWbvBFMEsJkO79FmfENxaxT9rM7NPFYYZGajo1D%2fAYowDV1qnmfvduoEJgYqydG3QAjyHCWDYBZho2vgxMJapQ8yOFnZ07fQ%2bT8Un8LJwXt1BlZDX9nqxsRTpRyOWdRgc1mYiWw0c2SEon3sMtUjorLo8JtClKzuGI8T76jputvQD3%2f515r8uubX6%2f"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1132
      • C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe" "RunRole" "fcf2d690-2eb0-485c-9f6d-346816c12ad1" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4688
      • C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe" "RunRole" "dc7e1b45-0b30-41d3-96d0-12b2886a4741" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5812

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a3904.rbs

          • Path C:\Config.Msi\e5a3904.rbs
          • Size 214KB
          • SHA256 40877202ecdff055fd41dbaca99fa973e7c04ffbff852db19dd4966c55136f7c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\system.config
          • Size 972B
          • SHA256 a7fff1297892de3f3e4a599d7bfb3171a4dc02392b4369ccf85e533f2d58b94a
          • MD5 SHA1 SHA512 TLSH

          MSID807.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSID807.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID807.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID807.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID807.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID807.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDF8A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDF8A.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI3F8C.tmp

          • Path C:\Windows\Installer\MSI3F8C.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a3903.msi

          • Path C:\Windows\Installer\e5a3903.msi
          • Size 9.8MB
          • SHA256 1baa9dffe816824c92456ba687d71c03d248a51dbdd504bf84c9de026ce76c3d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          bma4zibc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b30aaf371ef90238)\bma4zibc.newcfg
          • Size 882B
          • SHA256 8163917fcedc87dff6691a9294885db1778767a255ad0995e0c1b95521c089e7
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b30aaf371ef90238)\user.config
          • Size 520B
          • SHA256 f2f164a62e98cc11679e7c88787413f61b87aebc3ace467818b6338151125257
          • MD5 SHA1 SHA512 TLSH

          uto5e3f3.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b30aaf371ef90238)\uto5e3f3.newcfg
          • Size 683B
          • SHA256 aa589b41d01ed74a1d6d2aa34a24d1168ceb1c591f2b2751d9801d262f2d795e
          • MD5 SHA1 SHA512 TLSH

          {212a1d6b-6c07-42ca-b52d-ea40b7716f68}_OnDiskSnapshotProp

          • Path \??\Volume{c61f8367-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{212a1d6b-6c07-42ca-b52d-ea40b7716f68}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 247bbc80b872f6eec47840826da39e1fd266796d968f7f3bef7eb6c9cc8f830a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1132-184-0x0000000004D80000-0x0000000004E12000-memory.dmp

          memory/1132-188-0x0000000004F70000-0x0000000005046000-memory.dmp

          memory/1132-186-0x0000000004980000-0x00000000049C1000-memory.dmp

          memory/1132-151-0x0000000004B30000-0x0000000004CE0000-memory.dmp

          memory/1132-164-0x00000000049D0000-0x0000000004A20000-memory.dmp

          memory/1132-183-0x0000000004A90000-0x0000000004AFC000-memory.dmp

          memory/1132-147-0x0000000004850000-0x00000000048E4000-memory.dmp

          memory/1132-141-0x0000000002340000-0x000000000235A000-memory.dmp

          memory/4280-34-0x0000000006430000-0x00000000069EA000-memory.dmp

          memory/4280-21-0x0000000003940000-0x000000000396E000-memory.dmp

          memory/4280-33-0x0000000005CC0000-0x0000000005E70000-memory.dmp

          memory/4280-29-0x0000000005A70000-0x0000000005B04000-memory.dmp

          memory/4280-25-0x0000000003970000-0x000000000397C000-memory.dmp

          memory/4688-208-0x000000001B940000-0x000000001B9AC000-memory.dmp

          memory/4688-207-0x0000000000C50000-0x0000000000CFE000-memory.dmp

          memory/4688-209-0x000000001BD50000-0x000000001BDE4000-memory.dmp

          memory/4688-210-0x000000001BFA0000-0x000000001C150000-memory.dmp

          memory/4688-211-0x0000000002F60000-0x0000000002F7A000-memory.dmp

          memory/4688-212-0x000000001C2E0000-0x000000001C468000-memory.dmp

          memory/4944-64-0x0000000005920000-0x0000000005948000-memory.dmp