Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 00:11

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260820-ag438swfqa
  • SHA256 a5af67f9f8374f965b671972a4e3e4f190bfab9d8dc1ed3df9e94ea3fe6bdf31
  • 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.

  • 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:5820
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\dee686a4bb2f55fa\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:4444
  • 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:1180
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3C163879F8CF6DF8A81A8FB55EC8D424 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4888
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICFAA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240767046 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4156
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID578.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240768437 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4468
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDCAC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240770546 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5320
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3984
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 87CB107BC6A734955A867C6A945DE192
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3796
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1F7B51ED74224D7926A5EF52654A98ED E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4256
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5240
    • C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-iaej2q-relay.screenconnect.com&p=443&s=1de52bbd-851b-470e-b514-fe07e3585dfa&k=BgIAAACkAABSU0ExAAgAAAEAAQC5utUbibkaFjIt8catDClAcUb%2f7Qe39V8PMgSFK1uO2ttiKQ29jNefR5Fqk%2fL0wpQ2PPh6cPTwa0udokJFsO12oTYf%2fwN1p10MLGjyuVmlwhEKyjipuBeav6PK%2fBwwCGM7rCNFc1uKHVufvjo1cdMKUaRnkoa7EvaOzArMc3rFhjkJLmEme2vYYM1I2pgYJHim4l%2fC7f%2fey3JxtnXud8UIHqPw7FYy535LYPWGHsi9xp6Jvw4CAG%2bem797fKoubOzTxZSw4LVnb%2fKbM7xgT%2fuO%2bNLSU3ta0lFBIx9qoK6Bi2GpxBL4jS2isVm4c5n8zYBW0tOGYmp%2f69Rl7zaeQ4Xl"
      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:748
      • C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.WindowsClient.exe" "RunRole" "61428efe-21cd-46c1-8cf5-3107738ef61a" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3192
      • C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.WindowsClient.exe" "RunRole" "f72bbc4a-192c-479c-af52-39671fe8c7ff" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5860

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a4eaf.rbs

          • Path C:\Config.Msi\e5a4eaf.rbs
          • Size 214KB
          • SHA256 a78134d5ad37a7cf40652ac280f26d4f855dd363a0da21486fa302b92734309c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (dee686a4bb2f55fa)\system.config
          • Size 966B
          • SHA256 47b73a6773950b5ddb0ce05559729a1b10563f6923e14aaa0178ef00268305c4
          • MD5 SHA1 SHA512 TLSH

          MSICFAA.tmp

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

          Microsoft.Deployment.WindowsInstaller.dll

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

          ScreenConnect.Core.dll

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

          ScreenConnect.InstallerActions.dll

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

          ScreenConnect.Windows.dll

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

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSID578.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID578.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\dee686a4bb2f55fa\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 624085df8bf0cfc5afb900cc4111e72993fc3429e8d50cc8b4c5a919f99bb814
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI572B.tmp

          • Path C:\Windows\Installer\MSI572B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          qxqmqj1v.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dee686a4bb2f55fa)\qxqmqj1v.newcfg
          • Size 884B
          • SHA256 3514d6aee429e2a66aa1c5f280d06f08185853d68f276f3eb3ff82be33b2bfa8
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dee686a4bb2f55fa)\user.config
          • Size 683B
          • SHA256 bf72a1f3b33c34fe6e7132c83e634db05a5c66c4a86d274f2747e65b022cf815
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dee686a4bb2f55fa)\user.config
          • Size 520B
          • SHA256 91e4b4d8beff0d387689489b3cc639d4a89148c67a42278227ee57f73d756ed8
          • MD5 SHA1 SHA512 TLSH

          {1ed06403-3345-48d6-a7ea-ef5af6fba3eb}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{1ed06403-3345-48d6-a7ea-ef5af6fba3eb}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 919f4aba1d927678f9b6c2bf9b0a40de8ff406b8113351a5b9245806fffcd05e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/748-154-0x0000000001D80000-0x0000000001D9A000-memory.dmp

          memory/748-197-0x00000000043B0000-0x00000000043F1000-memory.dmp

          memory/748-195-0x00000000048A0000-0x0000000004932000-memory.dmp

          memory/748-199-0x0000000004A90000-0x0000000004B66000-memory.dmp

          memory/748-194-0x0000000004560000-0x00000000045CC000-memory.dmp

          memory/748-177-0x00000000044A0000-0x00000000044F0000-memory.dmp

          memory/748-166-0x0000000004400000-0x0000000004494000-memory.dmp

          memory/748-175-0x0000000004650000-0x0000000004800000-memory.dmp

          memory/3192-223-0x000000001BA60000-0x000000001BBE8000-memory.dmp

          memory/3192-222-0x00000000025D0000-0x00000000025EA000-memory.dmp

          memory/3192-217-0x00000000003D0000-0x000000000047E000-memory.dmp

          memory/3192-221-0x000000001B720000-0x000000001B8D0000-memory.dmp

          memory/3192-219-0x000000001B080000-0x000000001B0EC000-memory.dmp

          memory/3192-224-0x00000000025F0000-0x0000000002631000-memory.dmp

          memory/3192-220-0x000000001B4D0000-0x000000001B564000-memory.dmp

          memory/4156-47-0x0000000005590000-0x0000000005740000-memory.dmp

          memory/4156-43-0x0000000003330000-0x00000000033C4000-memory.dmp

          memory/4156-35-0x0000000003260000-0x000000000328E000-memory.dmp

          memory/4156-39-0x0000000003220000-0x000000000322C000-memory.dmp

          memory/4468-77-0x0000000002470000-0x0000000002498000-memory.dmp

          memory/5820-9-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/5820-2-0x0000000003770000-0x000000000377C000-memory.dmp

          memory/5820-3-0x0000000005D70000-0x0000000005E04000-memory.dmp

          memory/5820-1-0x00000000036A0000-0x00000000036A8000-memory.dmp

          memory/5820-4-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/5820-0-0x0000000074482000-0x0000000074483000-memory.dmp

          memory/5820-5-0x0000000005E20000-0x0000000005E48000-memory.dmp

          memory/5820-6-0x0000000005E80000-0x0000000006030000-memory.dmp

          memory/5820-7-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/5820-8-0x00000000065F0000-0x0000000006BAA000-memory.dmp

          memory/5820-11-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/5820-13-0x0000000074470000-0x0000000074C2C000-memory.dmp

          memory/5860-226-0x0000000002D30000-0x0000000002D71000-memory.dmp