Analysis

  • max time kernel
    149s
  • 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
    03/08/2026, 12:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260803-phy1yaap9z
  • SHA256 384687ad326e74d24a7da043eba34ab6b8240f2ac904cda568d6125b25baf1a9
  • 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.

  • 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
  • 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.

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 9 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 10 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3244
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\cfa35c3e2d14356a\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:2600
  • 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:2280
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1A510FD75F6060CB3B6FD6E83855C3DA C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5384
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA81D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240756921 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:204
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIAD2F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240758234 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2220
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB28F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240759609 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5008
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3592
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AE66E7D759AFA6595A0F4F908FF272A7
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4228
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4D6EBF2F5915F08B60C367CFE5D1A6B0 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5844
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1424
    • C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ziys1z-relay.screenconnect.com&p=443&s=155e43ee-d889-419a-b5c0-1148b1301de8&k=BgIAAACkAABSU0ExAAgAAAEAAQChZjL36PH8SmYWqN3FLMGQoh4AVYz%2fQH9JIcVdS73nT2s9%2bzv%2fShE2%2fYScBrShZ1xl4nEMxaNocbDm1EKNOuXDVYeXY97%2beqnamRvnYaOnKfMwtjFdXtGv2XsRJA9MPH6KMzQJLakS0nPghCT7A9DieKDGlYGrImWAWfomtj5Qiauwi%2b6RFur%2fG54QDJ4%2f2ivVRNkqpV8iYOyntivu9LYdPsSPdMRCpdAieZy025LjeehfDvoOZgpGOPwrIwuyMEsQADOIdUEjRoz5pjhofDoAkNdtFVuSTvJJLhZJMdpGCnHHp0djjE4datpNt%2f2nwLkJQwlqguS3eId%2f%2b1ij2erN&c=AB&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2512
      • C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.WindowsClient.exe" "RunRole" "cea4b456-bb07-4bcf-b7cd-8b9f25277f68" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1080
      • C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.WindowsClient.exe" "RunRole" "f0747eda-76c3-47bc-b228-a158bc4bd59f" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:860

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a0189.rbs

          • Path C:\Config.Msi\e5a0189.rbs
          • Size 214KB
          • SHA256 81e0e00329520d27730151ebe5a351a964304752a5518ca01aa8c8d25c0a89aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (cfa35c3e2d14356a)\system.config
          • Size 966B
          • SHA256 1fcaaf5b75e02c2db91ff7da91ae8132c2087b653d78730e32b3ab4d9bb00e1c
          • MD5 SHA1 SHA512 TLSH

          MSIA81D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA81D.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA81D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA81D.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA81D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA81D.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIAD2F.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIAD2F.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\cfa35c3e2d14356a\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 be61a66754528b823de3ce90a6f5365e94390b8c3c00007d3b076357388152d4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7B3.tmp

          • Path C:\Windows\Installer\MSI7B3.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2c5dlk2e.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cfa35c3e2d14356a)\2c5dlk2e.newcfg
          • Size 881B
          • SHA256 2693195c363e928579633b9e7b132e48bb9f721fce12e15a8f15156409b0cfbf
          • MD5 SHA1 SHA512 TLSH

          rsly32cm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cfa35c3e2d14356a)\rsly32cm.newcfg
          • Size 683B
          • SHA256 4dbb577fa6729636c96187c32555a70392a17ad56302ce19b70b5d28609c8092
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cfa35c3e2d14356a)\user.config
          • Size 520B
          • SHA256 a8e786358ceea4532fdce5f37d1d45ecc08173721fdf51437128f15d1a2b5604
          • MD5 SHA1 SHA512 TLSH

          memory/204-37-0x0000000003CC0000-0x0000000003CCC000-memory.dmp

          memory/204-41-0x0000000005DB0000-0x0000000005E44000-memory.dmp

          memory/204-33-0x0000000003C90000-0x0000000003CBE000-memory.dmp

          memory/204-45-0x00000000060C0000-0x0000000006270000-memory.dmp

          memory/1080-224-0x0000000002FD0000-0x0000000002FEA000-memory.dmp

          memory/1080-223-0x000000001C050000-0x000000001C200000-memory.dmp

          memory/1080-222-0x000000001BAD0000-0x000000001BB64000-memory.dmp

          memory/1080-219-0x0000000000DE0000-0x0000000000E8E000-memory.dmp

          memory/1080-220-0x000000001BA60000-0x000000001BACC000-memory.dmp

          memory/1080-225-0x000000001C390000-0x000000001C518000-memory.dmp

          memory/2220-75-0x0000000003E60000-0x0000000003E88000-memory.dmp

          memory/2280-227-0x00000128A29B0000-0x00000128A3354000-memory.dmp

          memory/2512-177-0x00000000046A0000-0x00000000046F0000-memory.dmp

          memory/2512-164-0x00000000047B0000-0x0000000004960000-memory.dmp

          memory/2512-196-0x0000000004960000-0x00000000049CC000-memory.dmp

          memory/2512-197-0x00000000049D0000-0x0000000004A62000-memory.dmp

          memory/2512-154-0x0000000004490000-0x00000000044AA000-memory.dmp

          memory/2512-201-0x0000000004BC0000-0x0000000004C96000-memory.dmp

          memory/2512-199-0x00000000046F0000-0x0000000004731000-memory.dmp

          memory/2512-160-0x0000000004560000-0x00000000045F4000-memory.dmp

          memory/3244-3-0x0000000005700000-0x0000000005794000-memory.dmp

          memory/3244-7-0x0000000005F60000-0x000000000651A000-memory.dmp

          memory/3244-2-0x0000000003150000-0x000000000315C000-memory.dmp

          memory/3244-8-0x00000000745E0000-0x0000000074D9C000-memory.dmp

          memory/3244-1-0x0000000001830000-0x0000000001838000-memory.dmp

          memory/3244-10-0x00000000745E0000-0x0000000074D9C000-memory.dmp

          memory/3244-4-0x00000000745E0000-0x0000000074D9C000-memory.dmp

          memory/3244-11-0x00000000745E0000-0x0000000074D9C000-memory.dmp

          memory/3244-5-0x0000000005790000-0x00000000057B8000-memory.dmp

          memory/3244-6-0x00000000057F0000-0x00000000059A0000-memory.dmp

          memory/3244-13-0x00000000745E0000-0x0000000074D9C000-memory.dmp

          memory/3244-0-0x00000000745F2000-0x00000000745F3000-memory.dmp