Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    12/09/2026, 19:07

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 12.9MB
  • Sample260912-xsyrxsshja
  • SHA256 cd69825ca962118955811a023d3f6b130eb70696b532b96bbf1a893be00a7c35
  • 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 3 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 System32 directory 3 IoCs
  • 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.

  • 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 WriteProcessMemory 7 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:4960
  • 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:4012
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0AA1CF70FEF00248733E3D24FB763738 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:8
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDE65.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240705359 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:984
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1364
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 26914758C7A6B03FF9B91F51A5836912
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4004
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 823755D8BEFD23799BFA146026560D55 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4968
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3824
    • C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=163.245.215.154&p=8041&s=a3630a00-e83e-409a-94d5-20f7664d8b71&k=BgIAAACkAABSU0ExAAgAAAEAAQCRMyZRlWdpOYwfNC%2bI9%2btf4njjir5O07mN2H%2fpfCX2LVvZsbgfUbYruQmdeed0uzl5sYB0WtX5pyHqk6czza5Np7h3T73w89F%2fos6P5JQg3wIYJpb214i02Dj7gVsHuBm0TYjQKzMAn%2bk7%2bR8I7YiEDUr1v%2bFhzxi1ipmRL2HdWoqbjLqA9h%2fNigX67U5DneJZaEGcTavHfr75kxPp%2b0mx7o0tihkIK4uFBAdPlQn9n%2fAKfHY3uYpV%2fnG7M6g31OUomWeM%2flwqUpdaKXkhmaSWP%2fkOf7EXIxnV2i%2fJeorHyfEyFzBtOVER4WvLIR6dRJcnePPzFxCS%2fhvSuufiw%2fnI"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4376
      • C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.WindowsClient.exe" "RunRole" "17c93cdb-0b1f-415a-8ce6-f922e8cbe2ee" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3496
      • C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.WindowsClient.exe" "RunRole" "9ad10f39-7311-4af4-89c7-2e8a3d429291" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2084

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5938bb.rbs

          • Path C:\Config.Msi\e5938bb.rbs
          • Size 214KB
          • SHA256 dee567769c1cfa0ac310bf53e3da4967a984c9f581d47267bc79362379dc88ea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\Client.Override.en-US.resources
          • Size 630B
          • SHA256 81c1426b5f997825668e1deaefea4786c551904ba0418e1ed40b6a3e40140187
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\Client.Override.resources
          • Size 62KB
          • SHA256 f4db75487f9cf23510e3e5dedd6560dcf03b41de4a678a1d160c75aae0209b9c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\Client.en-US.resources
          • Size 48KB
          • SHA256 07d04e6d5376ffc8d81afe8132e0aa6529cccc5ee789bea53d56c1a2da062be4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\Client.resources
          • Size 26KB
          • SHA256 de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 ea0a545f40ff491d02172228c1a39ae68344c4340a6094486a47be746952e64f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 fd5818dcdf5fc76316b8f7f96630ec66bb1cb5b5a8127cf300e5842f2c74ffca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f1b5c000794f046259121c63ed37f9eff0cfe1258588eca6fd85e16d3922767e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.WindowsClient.exe
          • Size 588KB
          • SHA256 600cf10e27311e60d32722654ef184c031a77b5ae1f8abae8891732710afee31
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 822KB
          • SHA256 7a80e8f654b9ddb15dda59ac404d83dbaf4f6eafafa7ecbefc55506279de553d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\app.config
          • Size 1KB
          • SHA256 92aa0b705f755cecf70dd713990db5461df6b7a7c650c77c9a79f43a2d92a6f4
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (9e844898a6b747f9)\system.config
          • Size 953B
          • SHA256 6ece872055a729d4ac9d71323f5c227a82d548caa9616bea8bf93138d79aa904
          • MD5 SHA1 SHA512 TLSH

          MSIDE65.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE65.tmp
          • Size 1.0MB
          • SHA256 0918d8ab2237368a5cec8ce99261fb07a1a1beeda20464c0f91af0fe3349636b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE65.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE65.tmp-\ScreenConnect.Core.dll
          • Size 536KB
          • SHA256 a2e9752de49d18e885cbd61b29905983d44b4bc0379a244bfabdaa3188c01f0a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE65.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 d727a640723d192aa3ece213a173381682041cb28d8bd71781524dbae3ddbf62
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDE65.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 84a09ed81afc5ff9a17f81763c044c82a2d9e26f852de528112153ee9ab041d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI3ABE.tmp

          • Path C:\Windows\Installer\MSI3ABE.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5938ba.msi

          • Path C:\Windows\Installer\e5938ba.msi
          • Size 12.9MB
          • SHA256 cd69825ca962118955811a023d3f6b130eb70696b532b96bbf1a893be00a7c35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 4ac22013c10590c6f0ac9f95534765c7612c2a841e5396518a911b63f3cb2790
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {c0a91102-4900-41f5-8b82-8a7ccaef7083}_OnDiskSnapshotProp

          • Path \??\Volume{efdbfdc7-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c0a91102-4900-41f5-8b82-8a7ccaef7083}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 836b5ea53e2732f1d7d4eb2dc1f341e3a60d9eb93399bb35ca2f80e3b2f73e7c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/984-30-0x0000000005940000-0x0000000005AEA000-memory.dmp

          memory/984-31-0x00000000060A0000-0x0000000006644000-memory.dmp

          memory/984-26-0x0000000005700000-0x000000000578C000-memory.dmp

          memory/984-22-0x0000000005650000-0x000000000565A000-memory.dmp

          memory/984-18-0x0000000005610000-0x000000000563E000-memory.dmp

          memory/3496-120-0x000000001BB70000-0x000000001BBFC000-memory.dmp

          memory/3496-118-0x0000000000B70000-0x0000000000C06000-memory.dmp

          memory/3496-119-0x0000000002CF0000-0x0000000002D26000-memory.dmp

          memory/3496-121-0x000000001BDB0000-0x000000001BF5A000-memory.dmp

          memory/3496-122-0x000000001BF60000-0x000000001C0E6000-memory.dmp

          memory/3496-123-0x0000000002B70000-0x0000000002B88000-memory.dmp

          memory/3496-124-0x0000000002CD0000-0x0000000002CE8000-memory.dmp

          memory/4376-107-0x0000000004750000-0x0000000004822000-memory.dmp

          memory/4376-105-0x00000000044D0000-0x0000000004511000-memory.dmp

          memory/4376-103-0x0000000004570000-0x0000000004602000-memory.dmp

          memory/4376-102-0x00000000042C0000-0x00000000042F6000-memory.dmp

          memory/4376-98-0x0000000004270000-0x00000000042C0000-memory.dmp

          memory/4376-76-0x0000000003EF0000-0x0000000003F08000-memory.dmp