Analysis

  • max time kernel
    148s
  • max time network
    137s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/07/2026, 18:10

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260724-wr1pfstyew
  • SHA256 f97cfbcbe58183d10c636af484788979d60f866c5aa1c74ca99898a62ddc0d52
  • 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:5596
  • 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:5568
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 50D6A1F05A43DDA3BAA98DD57E482C48 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5004
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7380.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240743609 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6056
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI793E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240744796 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2604
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI812E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240746968 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4856
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4564
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4EAD18DACFE8E7BDB6029229FD8CC1CB
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3256
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2239C854BF786DB036BAEE2B3C5A6F98 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5912
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2716
    • C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-sl019a-relay.screenconnect.com&p=443&s=5bff0d5b-e583-482a-9ab8-b49db8a6253b&k=BgIAAACkAABSU0ExAAgAAAEAAQAlP5WTJeohlaH%2b9V9iJ1BQlMALUcwftvhR1%2bsfv6ucq8QV3UHnzguLikK0RgzIAXL2VT9wZeCb7gNoQV%2b%2bl%2fUeShjltBK5MFY3rFO8epfNVndtNWNpsqSy7%2fdOL%2fazz88dI%2fC0RiH3%2bsvOAdahV2DwestKEF0EV5bN%2bOyJn1dT8sgezEakmfnYqV7dejqQOY85kHV17FOWc7J0nRXBBQZTvfAgsWfUcZ68dNz2LDbIHDcDKvRYSR8ymqr6SDY1ZJexEgFFNsYMF9CXjdnVmV%2boxlDYsvUjioCbdGx4I3WJxNnVkkIJdeceieUF%2fKIKxYhu9FBMupo2SVMx6sZScQO4&c=VCARD%20%20DIRECT&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:5664
      • C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.WindowsClient.exe" "RunRole" "a988623c-33cc-42bd-a981-91b204cf45cc" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5484
      • C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.WindowsClient.exe" "RunRole" "2bf8aeed-1d25-408b-ae04-420567b56a01" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2420

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59d0f3.rbs

          • Path C:\Config.Msi\e59d0f3.rbs
          • Size 214KB
          • SHA256 75ae016e9550e3c4668584c8b6c53290d135a5d26d4d2232de9a54820efd1ab5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1d3107a608a0704)\system.config
          • Size 968B
          • SHA256 5143d382c16bfdde483e8867471b2f860c4d4205f802c06811fbacbe5251a9bc
          • MD5 SHA1 SHA512 TLSH

          MSI7380.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7380.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7380.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7380.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7380.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7380.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI793E.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI793E.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSID7BA.tmp

          • Path C:\Windows\Installer\MSID7BA.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59d0f2.msi

          • Path C:\Windows\Installer\e59d0f2.msi
          • Size 9.8MB
          • SHA256 f97cfbcbe58183d10c636af484788979d60f866c5aa1c74ca99898a62ddc0d52
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2mysvsss.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a1d3107a608a0704)\2mysvsss.newcfg
          • Size 683B
          • SHA256 e4745a4244e77a60e08fe8e38a4f827c0b3f7d8ea88ebde3c9728092756079bd
          • MD5 SHA1 SHA512 TLSH

          ly3tkggn.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a1d3107a608a0704)\ly3tkggn.newcfg
          • Size 882B
          • SHA256 5a4f15b2d732a6a2ab7d862c47153d125cdac73df857498abe1d3d104b848291
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a1d3107a608a0704)\user.config
          • Size 520B
          • SHA256 539609e773f1612618ab1dad2f135c37fb0e48712134b769dd03417fe0fa956e
          • MD5 SHA1 SHA512 TLSH

          {656ec480-f807-47db-bda5-4c54a956591a}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{656ec480-f807-47db-bda5-4c54a956591a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 6a500de780fd6a439ee861cfc8f1c933cbce9cfe7f98f26634e11e5d44acb169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2604-64-0x0000000005DA0000-0x0000000005DC8000-memory.dmp

          memory/5484-213-0x0000000002800000-0x0000000002841000-memory.dmp

          memory/5484-212-0x000000001C7E0000-0x000000001C968000-memory.dmp

          memory/5484-211-0x0000000000F40000-0x0000000000F5A000-memory.dmp

          memory/5484-210-0x000000001B880000-0x000000001BA30000-memory.dmp

          memory/5484-209-0x000000001B630000-0x000000001B6C4000-memory.dmp

          memory/5484-208-0x0000000002790000-0x00000000027FC000-memory.dmp

          memory/5484-207-0x0000000000520000-0x00000000005CE000-memory.dmp

          memory/5664-184-0x0000000004820000-0x00000000048B2000-memory.dmp

          memory/5664-141-0x0000000001CB0000-0x0000000001CCA000-memory.dmp

          memory/5664-147-0x00000000042A0000-0x0000000004334000-memory.dmp

          memory/5664-188-0x0000000004A10000-0x0000000004AE6000-memory.dmp

          memory/5664-186-0x0000000004450000-0x0000000004491000-memory.dmp

          memory/5664-164-0x0000000004490000-0x00000000044E0000-memory.dmp

          memory/5664-183-0x0000000004710000-0x000000000477C000-memory.dmp

          memory/5664-151-0x00000000044F0000-0x00000000046A0000-memory.dmp

          memory/6056-21-0x0000000003310000-0x000000000333E000-memory.dmp

          memory/6056-34-0x0000000005E00000-0x00000000063BA000-memory.dmp

          memory/6056-33-0x0000000005690000-0x0000000005840000-memory.dmp

          memory/6056-29-0x0000000005440000-0x00000000054D4000-memory.dmp

          memory/6056-25-0x0000000003350000-0x000000000335C000-memory.dmp