Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/09/2026, 08:14

General

  • Target
    screenconnect.clientsetup.msi
  • Size 12.8MB
  • Sample260930-j5eb6aytez
  • SHA256 35ca275107662e231824cc7dcd45277e153c2e64e654b644b3a8f4415475023c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 11 IoCs
  • Enumerates connected drives 3 TTPs 47 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 11 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 3 IoCs
  • Modifies registry class 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 4 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:4360
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • 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:1672
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding CE4CF121E3604CD1BAC87A508C4AF343 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3168
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID00D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240701656 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:920
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4140
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6179FA4359BD776EF0B66D6D3E7B5DB3
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2908
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1820

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5921d7.rbs

          • Path C:\Config.Msi\e5921d7.rbs
          • Size 10KB
          • SHA256 3286de9d3d0f1f0173f2464d78acb9b9a84848f690d4ac5e753948606454b47a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSID00D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSID00D.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID00D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID00D.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID00D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID00D.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI237D.tmp

          • Path C:\Windows\Installer\MSI237D.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5921d6.msi

          • Path C:\Windows\Installer\e5921d6.msi
          • Size 12.8MB
          • SHA256 35ca275107662e231824cc7dcd45277e153c2e64e654b644b3a8f4415475023c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 ced9f9ab808f9392e12c6de9af9f9695f03d663c33de3c340c5efbe9d3b3e121
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {d33a2903-c08f-49f1-a81d-10ae96caf05a}_OnDiskSnapshotProp

          • Path \??\Volume{9f840213-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{d33a2903-c08f-49f1-a81d-10ae96caf05a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 e89d702b65d1b3e6c774c04b88e3f8d14dbca3a0c401a1c8fab23961ffaa63b8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/920-30-0x0000000004EF0000-0x000000000509C000-memory.dmp

          memory/920-26-0x0000000004CB0000-0x0000000004D3C000-memory.dmp

          memory/920-31-0x0000000005650000-0x0000000005BF4000-memory.dmp

          memory/920-22-0x0000000004B80000-0x0000000004B8A000-memory.dmp

          memory/920-18-0x0000000004B90000-0x0000000004BBE000-memory.dmp