Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 12:19

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260729-phfvcsfq9s
  • SHA256 68c11d59e203660eef0c1a61e62f17c017d7ff6bbda3021791c4a0172658dee9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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 15 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 11 IoCs
  • Suspicious use of SendNotifyMessage 9 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:4100
  • 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:3176
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 955FDC11361D7707D6F09B65715B9A36 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8032.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240746953 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3816
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8719.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240748343 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2120
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8E5D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240750359 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2428
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2084
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A1B5D7E682E00FD7C8008B3FC78C22EE
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3360
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DF5D57668D11756BD83201E536F0A261 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:6044
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2152
    • C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-dbse2u-relay.screenconnect.com&p=443&s=8106d566-db5d-49cb-b860-9d8afe3c22a6&k=BgIAAACkAABSU0ExAAgAAAEAAQCNjK8BMReKwC2acCHMBLbZcOPV58EBDOdzRX36FdKGJ8dEq%2fqZT0%2blzMmmOPnBai7EMKXsVNEqzHFBcmhsdWL0dUmr3opg68zgNc3JK6zHczmOsSxZNoK7zrCzCgzMdC1%2b%2fFgKUmqv2H23%2fLibzXxE8raayzpeoxc1KZIZA5oo69%2fftzYkRmc3JYB%2fHdRMl1eEC%2brLvxYY6n0cuYt9x%2f9GUqBVa1ujFnBx%2fNq50rK8DP1dVzl1p4BWwr2RdgX3%2bfhZ2YA2%2fZXiGuothbWpcoianeGwTGXrAPNP7IhHrqMiySjVwkJGGzvnu4YXgqmXivyj78%2ba9TXiHH9QSmHn4YmY"
      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:1272
      • C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe" "RunRole" "5087123c-cc53-48d6-b83f-8b397e634d31" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5184
      • C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe" "RunRole" "59ee208a-0183-4366-9690-0e1e2b0519a1" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4592

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59eb9f.rbs

          • Path C:\Config.Msi\e59eb9f.rbs
          • Size 214KB
          • SHA256 7486cb6cfb9cfbe8c385b764efdf41e7d11ca8df3c533215916c4f1e33da4d67
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\system.config
          • Size 970B
          • SHA256 9e3baad6eca435c738867d4ebc77f0703cb7562c8fdb06388d81db9211875a99
          • MD5 SHA1 SHA512 TLSH

          MSI8032.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8032.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8032.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8032.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8032.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8032.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8719.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8719.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF1D9.tmp

          • Path C:\Windows\Installer\MSIF1D9.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59eb9e.msi

          • Path C:\Windows\Installer\e59eb9e.msi
          • Size 9.8MB
          • SHA256 68c11d59e203660eef0c1a61e62f17c017d7ff6bbda3021791c4a0172658dee9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          1irdfne3.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59bf4a1f4b4fd66c)\1irdfne3.newcfg
          • Size 883B
          • SHA256 02dafbab89e2a8bec053bd63c549a0f51c723dab16e2a8dd3d912e034b68a862
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59bf4a1f4b4fd66c)\user.config
          • Size 520B
          • SHA256 e13207ba3438ee50eb52e2ac4736dbbba15c4fc75eb700d5fe6281c5ba01eccc
          • MD5 SHA1 SHA512 TLSH

          vm3dtdci.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59bf4a1f4b4fd66c)\vm3dtdci.newcfg
          • Size 883B
          • SHA256 1143fb31992289bb327a6ea7c7ae1774e877a8faf57bdf530d22512cde30a590
          • MD5 SHA1 SHA512 TLSH

          y2t431aa.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59bf4a1f4b4fd66c)\y2t431aa.newcfg
          • Size 883B
          • SHA256 7b71d679e3aba027e278eb7744d674a55e346b3c3a7a9219681fd058bb1494bf
          • MD5 SHA1 SHA512 TLSH

          zn4eukam.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59bf4a1f4b4fd66c)\zn4eukam.newcfg
          • Size 683B
          • SHA256 7c18bb0e16fc893778e8a43b26c11840883cffe5855ed0a89dcf1a589fe0aaba
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 e2abc4d4c62312c7664244497749256fcfcf29ce0bede3a54641b91ac62463d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {c230c02d-f181-406c-92e4-68bd35b9963b}_OnDiskSnapshotProp

          • Path \??\Volume{c61fbfff-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{c230c02d-f181-406c-92e4-68bd35b9963b}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 0b1fd702dd6c0dae37d84b61a1e3f8d41f181ef50a0df5b65197ce78d3d4e059
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1272-183-0x0000000004D00000-0x0000000004D6C000-memory.dmp

          memory/1272-186-0x0000000004AB0000-0x0000000004AF1000-memory.dmp

          memory/1272-151-0x0000000004B00000-0x0000000004CB0000-memory.dmp

          memory/1272-188-0x0000000005000000-0x00000000050D6000-memory.dmp

          memory/1272-147-0x00000000048B0000-0x0000000004944000-memory.dmp

          memory/1272-184-0x0000000004E10000-0x0000000004EA2000-memory.dmp

          memory/1272-141-0x0000000002360000-0x000000000237A000-memory.dmp

          memory/1272-153-0x0000000004CB0000-0x0000000004D00000-memory.dmp

          memory/2120-62-0x00000000032B0000-0x00000000032D8000-memory.dmp

          memory/3816-31-0x0000000005980000-0x0000000005B30000-memory.dmp

          memory/3816-27-0x0000000005730000-0x00000000057C4000-memory.dmp

          memory/3816-32-0x00000000060F0000-0x00000000066AA000-memory.dmp

          memory/3816-23-0x0000000005650000-0x000000000565C000-memory.dmp

          memory/3816-19-0x0000000005660000-0x000000000568E000-memory.dmp

          memory/5184-208-0x000000001BC20000-0x000000001BC8C000-memory.dmp

          memory/5184-207-0x0000000000FB0000-0x000000000105E000-memory.dmp

          memory/5184-209-0x000000001C020000-0x000000001C0B4000-memory.dmp

          memory/5184-210-0x000000001C270000-0x000000001C420000-memory.dmp

          memory/5184-211-0x00000000032B0000-0x00000000032CA000-memory.dmp

          memory/5184-212-0x000000001C5B0000-0x000000001C738000-memory.dmp