Analysis

  • max time kernel
    148s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/07/2026, 18:14

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260715-wvsg9aev2x
  • SHA256 b8cd5d9d9dbcca5666bd72d2cf969acfea073758746da0a0f714a38f9ab682a9
  • 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 12 IoCs
  • Suspicious use of SendNotifyMessage 10 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:4676
  • 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:2136
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 17DBA43F5C6015D3EFA1C553A9F05AC1 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4680
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDB2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240717593 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4888
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1322.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240718921 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2848
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1BFC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240721140 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:832
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1852
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6B799EBF8F264AF521EACD88AE26BBFD
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4780
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A3DA14E454DEECACFDFEECFB5DABCF25 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5820
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1528
    • C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-rufh0b-relay.screenconnect.com&p=443&s=0e6bb1d7-afed-4b37-b42e-fa1919e53e5d&k=BgIAAACkAABSU0ExAAgAAAEAAQCxzHmfji2DU9qz0b3jC7lgPg71469ml7bvacfvxRYnMlR415nVa7KRRXpKN3C2zhPNsIdM2SWGPsd5fSDAm4uayJEVYtS1ZGUeCKx0zbh4gj9enxLoIlxN8A%2f%2fgzDqmp9j3FlbMWkPR379HYgBR9xf%2b8JLGFOCj2pMjov6smCM73H1yHu0cm5pv%2fM2qpe131u7hFUz3XOxxpDFih7DDLXm4kBmcrXfL%2fehAzBiebHadVo0dkf%2f5jflJJSA8K02%2fmFYL9iu5h3fPgze2Q1uAdW5gFr9N%2fHfYKDWfjdmWsF4B1mKwQejm0xX0HTFzdjzjhfnpMdyQUwAeUpllgcD54e%2b&c=SLIM&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:3512
      • C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.WindowsClient.exe" "RunRole" "4a58997d-726b-4871-8d43-80387250ccd7" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2668
      • C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.WindowsClient.exe" "RunRole" "5f4942d6-3616-4770-ad5f-1eea4c86fb62" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3920

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e596ebf.rbs

          • Path C:\Config.Msi\e596ebf.rbs
          • Size 214KB
          • SHA256 26f6e20504f2e3944731eb7818e65b2565429dedcca25c2a42e7e0788b911000
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (cee2761090414f10)\system.config
          • Size 962B
          • SHA256 25433070fbfc5f026916b56aba6e90c866795dcc257fbb60f31b924076a3c337
          • MD5 SHA1 SHA512 TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1322.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1322.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIDB2.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB2.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB2.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB2.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB2.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB2.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI75F2.tmp

          • Path C:\Windows\Installer\MSI75F2.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e596ebe.msi

          • Path C:\Windows\Installer\e596ebe.msi
          • Size 9.8MB
          • SHA256 b8cd5d9d9dbcca5666bd72d2cf969acfea073758746da0a0f714a38f9ab682a9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          aksy4r3s.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cee2761090414f10)\aksy4r3s.newcfg
          • Size 882B
          • SHA256 29debb64bb5e90137965057fad5438890bc545d644cd47de8aefff1345101a72
          • MD5 SHA1 SHA512 TLSH

          ih33shyz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cee2761090414f10)\ih33shyz.newcfg
          • Size 882B
          • SHA256 53337377a973f19662bd0e5a2be22ad1cbed66a8b5c06d35dbc51761f3a7e4ad
          • MD5 SHA1 SHA512 TLSH

          oif4jvwe.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cee2761090414f10)\oif4jvwe.newcfg
          • Size 683B
          • SHA256 07331acb67163d799eb08fa9ee46ba42bb8ae2b80af2fb6bb00d49ef50cde58c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cee2761090414f10)\user.config
          • Size 520B
          • SHA256 99cc4a5531b8432c3bd5f511b6ebc9e29e48a6623ffc39581830c127008b7a36
          • MD5 SHA1 SHA512 TLSH

          {517ce972-e404-472b-9474-b508a6e73d6c}_OnDiskSnapshotProp

          • Path \??\Volume{c61fbfff-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{517ce972-e404-472b-9474-b508a6e73d6c}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 d54d4b7c492420d33ad2c19a71910aed7d6c4697be75a9ee4aaf95bf18eb966b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2136-191-0x000001218A510000-0x000001218AEB4000-memory.dmp

          memory/2668-213-0x000000001C580000-0x000000001C708000-memory.dmp

          memory/2668-212-0x0000000001830000-0x000000000184A000-memory.dmp

          memory/2668-211-0x000000001C240000-0x000000001C3F0000-memory.dmp

          memory/2668-210-0x000000001BFF0000-0x000000001C084000-memory.dmp

          memory/2668-209-0x00000000018C0000-0x000000000192C000-memory.dmp

          memory/2668-208-0x0000000000F10000-0x0000000000FBE000-memory.dmp

          memory/2848-64-0x0000000005C20000-0x0000000005C48000-memory.dmp

          memory/3512-183-0x0000000004AA0000-0x0000000004B0C000-memory.dmp

          memory/3512-151-0x0000000004880000-0x0000000004A30000-memory.dmp

          memory/3512-147-0x0000000004630000-0x00000000046C4000-memory.dmp

          memory/3512-164-0x0000000004820000-0x0000000004870000-memory.dmp

          memory/3512-141-0x0000000001FA0000-0x0000000001FBA000-memory.dmp

          memory/3512-184-0x0000000004BB0000-0x0000000004C42000-memory.dmp

          memory/3512-186-0x0000000004A30000-0x0000000004A71000-memory.dmp

          memory/3512-188-0x0000000004DA0000-0x0000000004E76000-memory.dmp

          memory/3920-215-0x0000000002A40000-0x0000000002A81000-memory.dmp

          memory/4888-34-0x0000000006760000-0x0000000006D1A000-memory.dmp

          memory/4888-25-0x0000000003C60000-0x0000000003C6C000-memory.dmp

          memory/4888-33-0x0000000005FF0000-0x00000000061A0000-memory.dmp

          memory/4888-29-0x0000000005DA0000-0x0000000005E34000-memory.dmp

          memory/4888-21-0x0000000003C10000-0x0000000003C3E000-memory.dmp