Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/07/2026, 18:05

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260718-wpmd2shv4l
  • 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 12 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:4880
  • 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:5116
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E36328B67AE32520EAA6946F4589167F C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5600
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733203 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:420
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI50E6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734468 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5624
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI584A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736562 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5128
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:6012
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1A29E28D259132EA6078DB3D284AC159
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3512
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AE00F5660A0E47ECC0C4DF409DD32332 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1648
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5508
    • 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=364d9c78-4541-40e5-bab8-43834c8f8f43&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:1880
      • C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe" "RunRole" "d94565c3-e750-4d18-ad36-104de02dd61b" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5936
      • C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b30aaf371ef90238)\ScreenConnect.WindowsClient.exe" "RunRole" "374f1c14-babc-4a59-ae8d-70f02f35797d" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4128

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59a88c.rbs

          • Path C:\Config.Msi\e59a88c.rbs
          • Size 214KB
          • SHA256 5cd527ffd3d68b586119adba76db370f94c03bc811e814b9124fd366f1b5754f
          • 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

          MSI4A4E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A4E.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI50E6.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI50E6.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIAE77.tmp

          • Path C:\Windows\Installer\MSIAE77.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59a88b.msi

          • Path C:\Windows\Installer\e59a88b.msi
          • Size 9.8MB
          • SHA256 1baa9dffe816824c92456ba687d71c03d248a51dbdd504bf84c9de026ce76c3d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          cyqgdm5a.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b30aaf371ef90238)\cyqgdm5a.newcfg
          • Size 881B
          • SHA256 b124808f0816cf84ef3a7fde6d8abfd7e1cdba41259c421cd3de8f4511a36147
          • MD5 SHA1 SHA512 TLSH

          hc2cw2e1.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b30aaf371ef90238)\hc2cw2e1.newcfg
          • Size 683B
          • SHA256 aa589b41d01ed74a1d6d2aa34a24d1168ceb1c591f2b2751d9801d262f2d795e
          • MD5 SHA1 SHA512 TLSH

          raivlfnl.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b30aaf371ef90238)\raivlfnl.newcfg
          • Size 881B
          • SHA256 8aa0934cec7907e5ad830d3523726d51b1cbc9e3a69925fd5e6e8e7f56abf9fa
          • 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

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 1679ee5b3561371c0261ab1cbf96d4670df191de6dc905f36354bbd286e43bd3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {dd95c371-7ef0-482c-8479-2accace3bb7d}_OnDiskSnapshotProp

          • Path \??\Volume{5d76dc85-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{dd95c371-7ef0-482c-8479-2accace3bb7d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 1ccb05baaf0bd9fee11f60546dd799f213fbf2c20489e929674ff2c97ff3c67a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/420-33-0x0000000005A10000-0x0000000005BC0000-memory.dmp

          memory/420-21-0x00000000056C0000-0x00000000056EE000-memory.dmp

          memory/420-34-0x0000000006180000-0x000000000673A000-memory.dmp

          memory/420-25-0x00000000056F0000-0x00000000056FC000-memory.dmp

          memory/420-29-0x00000000057C0000-0x0000000005854000-memory.dmp

          memory/1880-183-0x0000000004060000-0x00000000040CC000-memory.dmp

          memory/1880-141-0x0000000001540000-0x000000000155A000-memory.dmp

          memory/1880-186-0x0000000003FF0000-0x0000000004031000-memory.dmp

          memory/1880-188-0x0000000004360000-0x0000000004436000-memory.dmp

          memory/1880-155-0x0000000003DE0000-0x0000000003E30000-memory.dmp

          memory/1880-151-0x0000000003E40000-0x0000000003FF0000-memory.dmp

          memory/1880-184-0x0000000004170000-0x0000000004202000-memory.dmp

          memory/1880-147-0x0000000003B90000-0x0000000003C24000-memory.dmp

          memory/5624-64-0x0000000005AE0000-0x0000000005B08000-memory.dmp

          memory/5936-208-0x000000001B700000-0x000000001B76C000-memory.dmp

          memory/5936-211-0x0000000002D90000-0x0000000002DAA000-memory.dmp

          memory/5936-212-0x000000001C010000-0x000000001C198000-memory.dmp

          memory/5936-210-0x000000001BCD0000-0x000000001BE80000-memory.dmp

          memory/5936-209-0x000000001B770000-0x000000001B804000-memory.dmp

          memory/5936-207-0x0000000000AA0000-0x0000000000B4E000-memory.dmp