Analysis

  • max time kernel
    149s
  • 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
    02/08/2026, 12:24

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260802-pljqesaa36
  • SHA256 3ce390a44bbe275b6b37d45f7ab5ed5691347561f5ddb1eb20c1f0dd41d01e7e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 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:3440
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\a8d63b9f7de1784b\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:1716
  • 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:3948
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4275C4D43B4586F4BBE41C33A4C5DB50 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1280
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9282.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751375 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5960
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9830.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752781 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5320
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9DDE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240754390 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4140
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3436
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 952345CDB61733400709155814A3C8D1
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1152
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4D280ED664812B01AB9C348045090958 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5520
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5484
    • C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-m54258-relay.screenconnect.com&p=443&s=824700cc-fd59-4984-b40a-4bca76e478bd&k=BgIAAACkAABSU0ExAAgAAAEAAQDpIdOBf8E7YVbZZ9Gv9Ajb6WZbFXfRkNNcDp3%2fpzhJIJol%2fKb7OcC8lH6mG6kcFnE1e2ZstfoifJQw1TiujPgB00%2bVO05jrVSVVaF6JSsd0Xj70JgLyyw2%2bORiyVob99zPYzB8vsFTb%2bM%2f7QmK%2fzJUGkwYA9jd0TPkFH5jdzGZtE%2boY2BWYDZS%2bdOwSCCYPvkQzrA7lta2zYknjKz3MC8TxJSylumaiXhTscCYMNUzVEsPHbQY7NNB8SO2rQGI9Yb1CLTy08RWrRlSQSxQi2EC8ShzIDcIONarFWIa2ShuhtqW%2fzVZHHh%2fPriVBI53CDkSRsHXA6el%2fFeJsxPnA%2f7L"
      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:4456
      • C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.WindowsClient.exe" "RunRole" "92c7913b-acf8-41fa-b4de-b05bf50c0bc2" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5236
      • C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.WindowsClient.exe" "RunRole" "ef4a63f3-d4dc-4f89-981c-b607f1e5f0bf" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4280

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59f14d.rbs

          • Path C:\Config.Msi\e59f14d.rbs
          • Size 214KB
          • SHA256 cd5be6abf6d7e34489047e144039562f8803567e615a0cef08f89c52037a73f1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a8d63b9f7de1784b)\system.config
          • Size 970B
          • SHA256 572173d9ed046f997a3be7c112680485f1c48aa56c09ee5ce2cc6f4b98d87635
          • MD5 SHA1 SHA512 TLSH

          MSI9282.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9282.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9282.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9282.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9282.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9282.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9830.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9830.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\a8d63b9f7de1784b\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 a327ebd27b117bccc98199f160ba12f11cf9335edc0586493ff2077ebe9e091b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF748.tmp

          • Path C:\Windows\Installer\MSIF748.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          kovu1inx.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a8d63b9f7de1784b)\kovu1inx.newcfg
          • Size 683B
          • SHA256 c630e715822432e218aea73129cc449aa0e882eab5844242a694bd051298ee9f
          • MD5 SHA1 SHA512 TLSH

          ndsizobl.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a8d63b9f7de1784b)\ndsizobl.newcfg
          • Size 882B
          • SHA256 bc3c1d95e4da678e3c62e9b516a900ebbdc8064ddf4eb9fdf745ce3cdcb6a42c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a8d63b9f7de1784b)\user.config
          • Size 520B
          • SHA256 f9b21d599396d739c997984b63043637f78a0aaeee6a9b99e349759a1662eff0
          • MD5 SHA1 SHA512 TLSH

          memory/3440-6-0x00000000056A0000-0x0000000005850000-memory.dmp

          memory/3440-2-0x0000000005530000-0x000000000553C000-memory.dmp

          memory/3440-11-0x0000000074DA0000-0x000000007555C000-memory.dmp

          memory/3440-1-0x00000000031C0000-0x00000000031C8000-memory.dmp

          memory/3440-9-0x0000000074DA0000-0x000000007555C000-memory.dmp

          memory/3440-8-0x0000000005E10000-0x00000000063CA000-memory.dmp

          memory/3440-3-0x00000000055A0000-0x0000000005634000-memory.dmp

          memory/3440-4-0x0000000074DA0000-0x000000007555C000-memory.dmp

          memory/3440-7-0x0000000074DA0000-0x000000007555C000-memory.dmp

          memory/3440-5-0x0000000005670000-0x0000000005698000-memory.dmp

          memory/3440-0-0x0000000074DB2000-0x0000000074DB3000-memory.dmp

          memory/3440-13-0x0000000074DA0000-0x000000007555C000-memory.dmp

          memory/4456-158-0x0000000004090000-0x0000000004124000-memory.dmp

          memory/4456-195-0x0000000004670000-0x0000000004702000-memory.dmp

          memory/4456-194-0x0000000004560000-0x00000000045CC000-memory.dmp

          memory/4456-162-0x00000000042F0000-0x00000000044A0000-memory.dmp

          memory/4456-175-0x00000000044A0000-0x00000000044F0000-memory.dmp

          memory/4456-197-0x00000000044F0000-0x0000000004531000-memory.dmp

          memory/4456-152-0x0000000001A80000-0x0000000001A9A000-memory.dmp

          memory/4456-199-0x0000000004860000-0x0000000004936000-memory.dmp

          memory/5236-218-0x0000000000330000-0x00000000003DE000-memory.dmp

          memory/5236-219-0x000000001AFB0000-0x000000001B01C000-memory.dmp

          memory/5236-221-0x000000001B610000-0x000000001B7C0000-memory.dmp

          memory/5236-220-0x000000001B3C0000-0x000000001B454000-memory.dmp

          memory/5236-222-0x0000000002630000-0x000000000264A000-memory.dmp

          memory/5236-223-0x000000001B950000-0x000000001BAD8000-memory.dmp

          memory/5320-75-0x00000000053E0000-0x0000000005408000-memory.dmp

          memory/5960-41-0x0000000005EC0000-0x0000000005F54000-memory.dmp

          memory/5960-45-0x0000000006110000-0x00000000062C0000-memory.dmp

          memory/5960-33-0x0000000005DE0000-0x0000000005E0E000-memory.dmp

          memory/5960-37-0x0000000005E10000-0x0000000005E1C000-memory.dmp