Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/07/2026, 18:38

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260730-w92pgadg72
  • SHA256 2d207355c6650a1fe599aaea9852fce9aa0ce15677fdd869a21c19cf2eb93b89
  • 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 2 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 30 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 24 IoCs
  • Suspicious use of SendNotifyMessage 22 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 8 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:2836
  • 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:4220
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E0A95F9EC9100085DC5BEA5011B28BA0 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2136
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2253.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240722843 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:720
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI27A4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723906 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4268
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2F65.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726156 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4812
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4188
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B5954F47AAABE291781B854E121ED2D0
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2052
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2FE31C61AB59C2DBBE5E6EFCB1358B41 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2588
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5992
    • C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-y0zvei-relay.screenconnect.com&p=443&s=9da37a9e-3371-4b11-95ff-60c78a015e4e&k=BgIAAACkAABSU0ExAAgAAAEAAQBJJ6DlCwrSIME483GN5q6diItDhLG63vFZSqEt02519T53DGPO5UlGkeeJufqTZac551u3W3Q5hZiR%2ftYA6NKgvQOXBX8jlWkFVDXtW2oCTkDKQbA3UepTNK8wsaQSYRg1XBJRzzqElKhF2ZlLwDcFYD5m48gemEu50FsYpFbqWG5NzxKtw98tqlBlgR8922Hva8OvaRI4ByACtzuGc4PH2cfDI4PBbMSJeJd8RWi%2bHyBkDq13zTKEsB5KWV45ulMJI739z0SZMuxcaLVSobH8sRMlZXLZXQQI6QefNxjBtLnRZOaJlMkj1a4TnwYgTa6zVCpn5%2fx9keqliRGHV2rP"
      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:1572
      • C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.WindowsClient.exe" "RunRole" "bc7f64eb-65f5-4dbf-abc2-3e7bf79347ff" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4280

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e597bfd.rbs

          • Path C:\Config.Msi\e597bfd.rbs
          • Size 214KB
          • SHA256 6a0b2c7b871ae35c946cdb92cff6bb51f0388d2e6c7e7e6da30f9bea01f71958
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (94025d96060d1ec1)\system.config
          • Size 950B
          • SHA256 0c8a0bc0978a482a1d6b6ac26c2a7dd0392c71d5e584982881e1eebdb13e0e54
          • MD5 SHA1 SHA512 TLSH

          MSI2253.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2253.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2253.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2253.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2253.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2253.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI27A4.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI27A4.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI82C4.tmp

          • Path C:\Windows\Installer\MSI82C4.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e597bfc.msi

          • Path C:\Windows\Installer\e597bfc.msi
          • Size 9.8MB
          • SHA256 2d207355c6650a1fe599aaea9852fce9aa0ce15677fdd869a21c19cf2eb93b89
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2a4lxmyo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\2a4lxmyo.newcfg
          • Size 883B
          • SHA256 799812e748fb300eab5b127a8501cff1f201d167681544e508196c3a446e552a
          • MD5 SHA1 SHA512 TLSH

          2tydhbuu.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\2tydhbuu.newcfg
          • Size 883B
          • SHA256 c473ca7a96e58111c3eb4c9a75ee24ec8c4c05b55d7a89a89526478eceb92a59
          • MD5 SHA1 SHA512 TLSH

          bdz0fj0p.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\bdz0fj0p.newcfg
          • Size 883B
          • SHA256 e98b0293098a9f5d1cda4ad9815918256be2ef4dcf79e34f87090a4c7f838dbf
          • MD5 SHA1 SHA512 TLSH

          cpdnspp4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\cpdnspp4.newcfg
          • Size 883B
          • SHA256 b3881c5044d5c41402a577932fa66dd44d4da169cf5a770fbaab154d868f61cc
          • MD5 SHA1 SHA512 TLSH

          klhgsha2.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\klhgsha2.newcfg
          • Size 883B
          • SHA256 e78e56b05ce6d1b533d45dbaeb29216550e98231f6baf81af0c45ae607771ed0
          • MD5 SHA1 SHA512 TLSH

          nqyje0uk.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\nqyje0uk.newcfg
          • Size 883B
          • SHA256 a5dec8f55faa7d668e87eaa6865fe7b91b411185b057da1a8329c5e6b527a174
          • MD5 SHA1 SHA512 TLSH

          rraa2sg0.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\rraa2sg0.newcfg
          • Size 883B
          • SHA256 c7ee4e998d468dabdc16c6be8088bb008a42f756159fd37ee6f1045619ca55a4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\user.config
          • Size 520B
          • SHA256 2b2e26633ba7e5416af0a1f545c01e40e6192b0c11ccfc3f41a0a3186ca54f3c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\user.config
          • Size 683B
          • SHA256 5e9d346e9d719d76bcde9af08f6582b6bd703c1b0d085584d002b073e6d91c3a
          • MD5 SHA1 SHA512 TLSH

          ytqp30cd.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (94025d96060d1ec1)\ytqp30cd.newcfg
          • Size 883B
          • SHA256 7c54623105db8af3f7426b6208a05665e093f88c5cf3ca84a9c3fc9ef79f0be5
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 4f6cf66a72619f5c7c713197111bdcdec91fe991719db68d2612a0ff6c6c4687
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {330bcbad-efd3-4ead-b312-44c299e7f2c3}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{330bcbad-efd3-4ead-b312-44c299e7f2c3}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 37a3a18f95d46877b90e24aac2835ef3943011ca4420673b62eb3520d7758d20
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/720-29-0x00000000038F0000-0x0000000003984000-memory.dmp

          memory/720-34-0x0000000006450000-0x0000000006A0A000-memory.dmp

          memory/720-33-0x0000000005CE0000-0x0000000005E90000-memory.dmp

          memory/720-21-0x00000000037C0000-0x00000000037EE000-memory.dmp

          memory/720-25-0x0000000003800000-0x000000000380C000-memory.dmp

          memory/1572-186-0x00000000043D0000-0x0000000004411000-memory.dmp

          memory/1572-149-0x00000000041E0000-0x0000000004274000-memory.dmp

          memory/1572-153-0x0000000004480000-0x0000000004630000-memory.dmp

          memory/1572-184-0x00000000047B0000-0x0000000004842000-memory.dmp

          memory/1572-143-0x0000000001A50000-0x0000000001A6A000-memory.dmp

          memory/1572-166-0x0000000004420000-0x0000000004470000-memory.dmp

          memory/1572-188-0x00000000049A0000-0x0000000004A76000-memory.dmp

          memory/1572-183-0x00000000046A0000-0x000000000470C000-memory.dmp

          memory/4268-64-0x0000000005C10000-0x0000000005C38000-memory.dmp

          memory/4280-207-0x0000000002D90000-0x0000000002DFC000-memory.dmp

          memory/4280-212-0x000000001C290000-0x000000001C418000-memory.dmp

          memory/4280-211-0x00000000016C0000-0x00000000016DA000-memory.dmp

          memory/4280-210-0x000000001BF50000-0x000000001C100000-memory.dmp

          memory/4280-209-0x000000001BD00000-0x000000001BD94000-memory.dmp

          memory/4280-206-0x0000000000C00000-0x0000000000CAE000-memory.dmp