Analysis

  • max time kernel
    148s
  • max time network
    154s
  • 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, 06:25

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 11.9MB
  • Sample260722-g6tgcsbf55
  • SHA256 aa9cab67d64699ec7945e90637777fbeb155dcc181a81a6ad45ff4c693f829dc
  • 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 21 IoCs
  • Drops file in Program Files directory 17 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 15 IoCs
  • Suspicious use of SendNotifyMessage 13 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:1376
  • 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:4928
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F93F37EC7677CFDB26C30ADDF9FE01F3 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1404
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI480B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732468 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1768
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4E65.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733843 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4452
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI557B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240735734 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5688
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding E6F387D9A1AC1E00B67C054B3B9C5D60
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3304
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 64D5CBC6BECBCA70D8AB155BF4FA23C1 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3516
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2484
    • C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-xhupr1-relay.screenconnect.com&p=443&s=f2dee581-e73a-49d7-97c4-d024fe0ba32e&k=BgIAAACkAABSU0ExAAgAAAEAAQCBRa%2fcC5cgddONSidN2WOS1gExX%2f8K66yKl3Ns7%2fMqOgYrXxn3MkB7vtxpgHVmvhBX3gqvQpAAiWJ97Ia264Boh5T5gsf9CC%2fwAVbe1UfnmXMQ5qjEd59P%2fMeTCmw6JChI6f6upT1txaSAsU0lXKu0Cx2S6q3zEDYkU3iHyFwgQby9FaP2pFuIVhyyigMZRurHchtf8O3JIKXfHm1XohPse8y5wIvQdGYMD4vvBqOmmj9oe0U0uN%2b2NGFfyMuuOMgQ%2fgOfLO%2boHScJUpRnu%2fC%2fLPR%2fTDWJHinZ433EBCwYgGathenVt1fKKF76pURfmxXc8baB52wHwuLgfOBNupfE&c=evite&c=evite.com&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:2744
      • C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.WindowsClient.exe" "RunRole" "b1bc5841-c83a-43ef-a75c-0096f04911f3" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3836
      • C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.WindowsClient.exe" "RunRole" "0c07bc5b-0be3-4dfa-83ec-7817d957c3a7" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:792

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59b0b9.rbs

          • Path C:\Config.Msi\e59b0b9.rbs
          • Size 214KB
          • SHA256 e5ea13952000462b21f1986ac9610ea3f2b5720862f6f66e7193a0692a964723
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\Client.Override.resources
          • Size 256B
          • SHA256 7d028d18ad32a5e8e756981223d3ac983d9d4c3696a064fc3b85ec51b6668fc5
          • MD5 SHA1 SHA512 TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b65db21534f0a6a2)\system.config
          • Size 966B
          • SHA256 6350e7169a5c3a720e3a830f7ddb970fa27da4789c9890909e39addb181c39ae
          • MD5 SHA1 SHA512 TLSH

          MSI480B.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI480B.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI480B.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI480B.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI480B.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI480B.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E65.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4E65.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB7BE.tmp

          • Path C:\Windows\Installer\MSIB7BE.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59b0b8.msi

          • Path C:\Windows\Installer\e59b0b8.msi
          • Size 11.9MB
          • SHA256 aa9cab67d64699ec7945e90637777fbeb155dcc181a81a6ad45ff4c693f829dc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          g5cza5vw.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b65db21534f0a6a2)\g5cza5vw.newcfg
          • Size 880B
          • SHA256 39183e112f2279ddce2253f2d8d00213d5d03fca2fece317cf940adefb581c13
          • MD5 SHA1 SHA512 TLSH

          hfpo54fl.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b65db21534f0a6a2)\hfpo54fl.newcfg
          • Size 880B
          • SHA256 2bce9b75bcddfcda155af0e9884a0b7f13bde62e2059a2c86c8c50e6f9638c27
          • MD5 SHA1 SHA512 TLSH

          muskr4wb.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b65db21534f0a6a2)\muskr4wb.newcfg
          • Size 880B
          • SHA256 d595c363a245147e631e190a9ccafd4830ddc47366de9c994ee4edf373e07baf
          • MD5 SHA1 SHA512 TLSH

          pqgir5ra.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b65db21534f0a6a2)\pqgir5ra.newcfg
          • Size 683B
          • SHA256 a4af7d4a53a2f5f560fb006a93743ebdcc30d55c9a3c8efce6f3adfb92c32342
          • MD5 SHA1 SHA512 TLSH

          rs3lodtg.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b65db21534f0a6a2)\rs3lodtg.newcfg
          • Size 880B
          • SHA256 1ff005b384eee125f676e683a18cf5918c85672f7182e9560cd541c4583ee972
          • MD5 SHA1 SHA512 TLSH

          sf4my0wk.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b65db21534f0a6a2)\sf4my0wk.newcfg
          • Size 880B
          • SHA256 b4ec3b2ef290163028b26bfdffd8fb2a57c22595c0d29d475c3deb4d8cbed5a3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b65db21534f0a6a2)\user.config
          • Size 520B
          • SHA256 23b7fdc9d598463362e2a8a36c761f1cca9436fc1838e11d9e66c1ad3cb25a60
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 58f39cd57f6575d7efdaf5529de29d8ce47823ecaef381cfef1af504e49bb640
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {77011062-f4eb-4ae0-b64a-677674c999ce}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{77011062-f4eb-4ae0-b64a-677674c999ce}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 8ffd646662996ad5e2205fe000cc3ba18b4a5e9d3f8c793d8e79a5e8eb7e3daf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1768-21-0x0000000003630000-0x000000000365E000-memory.dmp

          memory/1768-25-0x0000000003660000-0x000000000366C000-memory.dmp

          memory/1768-34-0x0000000006120000-0x00000000066DA000-memory.dmp

          memory/1768-33-0x00000000059B0000-0x0000000005B60000-memory.dmp

          memory/1768-29-0x0000000005760000-0x00000000057F4000-memory.dmp

          memory/2744-185-0x0000000004EA0000-0x0000000004F32000-memory.dmp

          memory/2744-187-0x0000000004AB0000-0x0000000004AF1000-memory.dmp

          memory/2744-189-0x0000000005090000-0x0000000005166000-memory.dmp

          memory/2744-148-0x00000000049C0000-0x0000000004A54000-memory.dmp

          memory/2744-165-0x0000000004AF0000-0x0000000004B40000-memory.dmp

          memory/2744-142-0x0000000002300000-0x000000000231A000-memory.dmp

          memory/2744-184-0x0000000004BB0000-0x0000000004C1C000-memory.dmp

          memory/2744-152-0x0000000004C50000-0x0000000004E00000-memory.dmp

          memory/3836-210-0x0000000002910000-0x000000000297C000-memory.dmp

          memory/3836-215-0x00000000010A0000-0x00000000010E1000-memory.dmp

          memory/3836-214-0x000000001BD50000-0x000000001BED8000-memory.dmp

          memory/3836-213-0x0000000000E60000-0x0000000000E7A000-memory.dmp

          memory/3836-211-0x000000001B7C0000-0x000000001B854000-memory.dmp

          memory/3836-212-0x000000001BA10000-0x000000001BBC0000-memory.dmp

          memory/3836-209-0x0000000000640000-0x00000000006EE000-memory.dmp

          memory/4452-64-0x0000000005940000-0x0000000005968000-memory.dmp