Analysis

  • max time kernel
    148s
  • max time network
    143s
  • 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, 18:18

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260722-wxt4vsxtgy
  • SHA256 bbb88080efa9aba8eb93abde5ae16c8e1e96c8f2dbfce93242c8e300ca1f06cb
  • 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:5840
  • 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:3068
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 82432AFDA7B411C98BC3E4FE37B7CE0C C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5392
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1A16.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240720671 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1920
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2189.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240722343 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2128
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI28FC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724281 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:364
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5796
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5F0F8DDFC907FD713273156CFC703FA6
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4152
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B91E836F3C45EE5791CF09A90C222A84 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5752
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5124
    • C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-wdqkd6-relay.screenconnect.com&p=443&s=3ed45d83-795a-48eb-a121-60460cc5a7f8&k=BgIAAACkAABSU0ExAAgAAAEAAQCdpH9o3XOu9hNPAKybCb5gdU9%2bbqEVL88K2J5meixo25IUSy%2bG9mw1vaAEHFcBaQgkwlWcY0l20rlYI4AjxxxctcJq1jrKD6X1QFeVqBdAEG1cWzUoEM5v6iu77wUI9JGFOUMyYZAGeSJ%2b8i90CcA7QO2uBasFnba%2bohFBml012OPGfL3wVg2Ilwi6jNZlrwk%2bEs1zJg6XZtyq7DUV%2br6MGAuhylIW144cxD5LywHrYeRBZou0OOooeTZQ5j%2bTou8EtxcA3tqHg9fgP%2bYSg0UCZArBwX%2bfFxfHGC8sxdMpXX%2fEN4TsPae5O1Bdq9PA1Su3jhLCLnPI18QSlYEd%2fMeq&c=peggy&c=&c=&c=&c=&c=&c=&c="
      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:840
      • C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.WindowsClient.exe" "RunRole" "45f12f04-c11a-4658-ba15-958ae8fa4553" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4208
      • C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.WindowsClient.exe" "RunRole" "6c12515c-0bad-436b-80ac-7cccdd5323cc" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4156

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e598285.rbs

          • Path C:\Config.Msi\e598285.rbs
          • Size 214KB
          • SHA256 222c882fb669c4a45ea02ffdc351397cdba1cbb660a9421b6a29d39784087a55
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (79f2c50423eef446)\system.config
          • Size 966B
          • SHA256 70f4577e15725a1d8bb077f3f67284b195e3ce7c442a4d0fca8ea9c75c2d5551
          • MD5 SHA1 SHA512 TLSH

          MSI1A16.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1A16.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1A16.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1A16.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1A16.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1A16.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2189.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2189.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8A36.tmp

          • Path C:\Windows\Installer\MSI8A36.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e598284.msi

          • Path C:\Windows\Installer\e598284.msi
          • Size 9.8MB
          • SHA256 bbb88080efa9aba8eb93abde5ae16c8e1e96c8f2dbfce93242c8e300ca1f06cb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          eynsupyh.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (79f2c50423eef446)\eynsupyh.newcfg
          • Size 882B
          • SHA256 ea9ac28c8d234050516663eb3dbefd370e7a16df4d7516880103183dcb756647
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (79f2c50423eef446)\user.config
          • Size 520B
          • SHA256 35533c495c3792bbd67e0ef5b084217527a129ab2837ba129e42fce2408e8c4f
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (79f2c50423eef446)\user.config
          • Size 683B
          • SHA256 9136bff1093a5f15884ccc6cc809ff334ab1beee993f0941e1f2a4dc5e13add0
          • MD5 SHA1 SHA512 TLSH

          {3a9a9d55-45a8-49c0-bceb-393b80b8cff4}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{3a9a9d55-45a8-49c0-bceb-393b80b8cff4}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 39eaf7a71b9694170901a64973868238e77140ddafc7b7eea223517ef82e18b4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/840-151-0x0000000003D20000-0x0000000003ED0000-memory.dmp

          memory/840-147-0x0000000003AD0000-0x0000000003B64000-memory.dmp

          memory/840-164-0x0000000003BF0000-0x0000000003C40000-memory.dmp

          memory/840-141-0x00000000038B0000-0x00000000038CA000-memory.dmp

          memory/840-181-0x0000000003CB0000-0x0000000003D1C000-memory.dmp

          memory/840-182-0x0000000003F70000-0x0000000004002000-memory.dmp

          memory/840-184-0x0000000003C40000-0x0000000003C81000-memory.dmp

          memory/840-186-0x0000000004160000-0x0000000004236000-memory.dmp

          memory/1920-33-0x00000000059C0000-0x0000000005B70000-memory.dmp

          memory/1920-29-0x0000000003750000-0x00000000037E4000-memory.dmp

          memory/1920-25-0x0000000003670000-0x000000000367C000-memory.dmp

          memory/1920-34-0x0000000006130000-0x00000000066EA000-memory.dmp

          memory/1920-21-0x0000000003680000-0x00000000036AE000-memory.dmp

          memory/2128-64-0x00000000051D0000-0x00000000051F8000-memory.dmp

          memory/4156-212-0x0000000002A30000-0x0000000002A71000-memory.dmp

          memory/4208-204-0x0000000000E00000-0x0000000000EAE000-memory.dmp

          memory/4208-206-0x0000000002F30000-0x0000000002F9C000-memory.dmp

          memory/4208-207-0x000000001BEF0000-0x000000001BF84000-memory.dmp

          memory/4208-208-0x000000001C140000-0x000000001C2F0000-memory.dmp

          memory/4208-209-0x0000000001730000-0x000000000174A000-memory.dmp

          memory/4208-210-0x000000001C480000-0x000000001C608000-memory.dmp