Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 12:25

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260723-plv4fsydma
  • SHA256 65bea58fd34ce6a2a9c7ef0b3f0ff99fdbcf80d6bb74ae571d47e4268114360e
  • 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:5976
  • 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:1092
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2767C619851E71B49387A38B3B2F7457 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1144
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8785.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240748812 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1772
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8DA1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240750015 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:916
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9582.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752203 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2968
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:600
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding E1992FC3F8D8D3BE0D896DE6FBA12934
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2556
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5F26133854CBF2984BC269DA42205545 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5456
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1600
    • C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-hy8nfn-relay.screenconnect.com&p=443&s=ce388f15-d620-464f-a000-a95a9740a95d&k=BgIAAACkAABSU0ExAAgAAAEAAQCJlCmEf4plXqCrHlQIejkXcfWenMDtqvYpRnhJDKhqAZxGLkkTbWVxFhdb8t14MDKoOwb3GFgY%2fJGarPvFXwj%2fbWnesRB1oVPw%2bJ9V6B%2b0W7MadSV7p%2b3rbWPxTsz3Z9W92oEVApot0EdQWheaiz48r8jE1HfF2FYDm2EZM8%2fwaL0cV91nsHHe1dPmccXOOj3ib2JCUf4Yn2R47YR6ZGqPk9zT5wYBr7yP1QNu0LP2OXImSb3mE3j8QgZV6ONhNQxtCSlRqvjReNh9hyBcMwCLD78kGSDW5QOnmO1Tcf0XotLd21F2L2uFdMQfPDq7OhnJnBe4k91fk%2bZZ5ExhFKvZ"
      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:4464
      • C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.WindowsClient.exe" "RunRole" "8992b977-136f-4969-8130-2fa8ffa267ce" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3316
      • C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.WindowsClient.exe" "RunRole" "50d48c86-e279-46f7-9c9c-6e6c6d07efe8" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4920

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a086e.rbs

          • Path C:\Config.Msi\e5a086e.rbs
          • Size 214KB
          • SHA256 ac833f38fd2df34ba2d613dd73549b97e3b49bdae099f18f6ff4c3a9676a74c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c4c587c2b59ce5b7)\system.config
          • Size 958B
          • SHA256 c51821b966785b4173d572dc74b7f61f56fff4c1945e17042c9001982d63c03e
          • MD5 SHA1 SHA512 TLSH

          MSI8785.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8785.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8785.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8785.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8785.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8785.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8DA1.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8DA1.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI104E.tmp

          • Path C:\Windows\Installer\MSI104E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a086d.msi

          • Path C:\Windows\Installer\e5a086d.msi
          • Size 9.8MB
          • SHA256 65bea58fd34ce6a2a9c7ef0b3f0ff99fdbcf80d6bb74ae571d47e4268114360e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          l21yxru1.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c4c587c2b59ce5b7)\l21yxru1.newcfg
          • Size 683B
          • SHA256 6863def6c47ab9e1c1ed16bcc0e38a95ee5c9b60e6b9d7ef5529b8e053445e93
          • MD5 SHA1 SHA512 TLSH

          lo4aulcp.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c4c587c2b59ce5b7)\lo4aulcp.newcfg
          • Size 883B
          • SHA256 97e546885f0dee67657889140e3d7c0e882e5648eed644bd37b8ac6db7e2e97d
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c4c587c2b59ce5b7)\user.config
          • Size 520B
          • SHA256 44ac407c2a9bb416dc5d33ec1844d3e52fb55ac568f26920ed1c9ea0192e7b99
          • MD5 SHA1 SHA512 TLSH

          {1e10ab29-be14-488d-a9e0-31621460ff8f}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{1e10ab29-be14-488d-a9e0-31621460ff8f}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 8639201ea9c7c6488577eb06db36f90c6082f17138ed2e652b4a575af8236d95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/916-64-0x0000000005C30000-0x0000000005C58000-memory.dmp

          memory/1772-34-0x0000000006C60000-0x000000000721A000-memory.dmp

          memory/1772-21-0x0000000006130000-0x000000000615E000-memory.dmp

          memory/1772-25-0x0000000006170000-0x000000000617C000-memory.dmp

          memory/1772-29-0x00000000062A0000-0x0000000006334000-memory.dmp

          memory/1772-33-0x00000000064F0000-0x00000000066A0000-memory.dmp

          memory/3316-210-0x000000001B3D0000-0x000000001B580000-memory.dmp

          memory/3316-207-0x0000000000040000-0x00000000000EE000-memory.dmp

          memory/3316-213-0x0000000002240000-0x0000000002281000-memory.dmp

          memory/3316-212-0x000000001B710000-0x000000001B898000-memory.dmp

          memory/3316-211-0x0000000002220000-0x000000000223A000-memory.dmp

          memory/3316-209-0x000000001B180000-0x000000001B214000-memory.dmp

          memory/3316-208-0x000000001AD10000-0x000000001AD7C000-memory.dmp

          memory/4464-151-0x0000000004A80000-0x0000000004C30000-memory.dmp

          memory/4464-184-0x0000000004DB0000-0x0000000004E42000-memory.dmp

          memory/4464-186-0x0000000004C30000-0x0000000004C71000-memory.dmp

          memory/4464-164-0x0000000004A20000-0x0000000004A70000-memory.dmp

          memory/4464-188-0x0000000004FA0000-0x0000000005076000-memory.dmp

          memory/4464-147-0x0000000004830000-0x00000000048C4000-memory.dmp

          memory/4464-141-0x0000000002170000-0x000000000218A000-memory.dmp

          memory/4464-183-0x0000000004CA0000-0x0000000004D0C000-memory.dmp