Analysis

  • max time kernel
    148s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/06/2026, 00:16

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260620-akvnzact2n
  • SHA256 a191c0e59c66a016c47cf7d35eea13da671f97ba57eebb622c16f809c1137083
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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.

  • 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 42 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 9 IoCs
  • Drops file in Program Files directory 16 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 7 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 9 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⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4952
  • 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:1708
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E4CB27DA68F1FEBAEE0DE8485C27A5A5 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5800
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE308.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240706562 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6024
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE74F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240707421 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4328
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEC13.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240708656 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3012
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4864
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding E56EE54862CB9399373AD55E13DB259A
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2888
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4E17494C9246292D4D9CC7E10D584DB1 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5632
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2180
    • C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-alvw1u-relay.screenconnect.com&p=443&s=69799176-1b39-46c0-bc39-cc8ccee5db69&k=BgIAAACkAABSU0ExAAgAAAEAAQBten1WIc50YWChTtgPYJcm5zKHlDjl%2fD36Way%2f2lLpSZ8WVKiy8nySBCUyBfGBX4fLdYb5ura79Wyeg8LEKoWejXZZPxP8srLZqefPlJ5hGKGwZfsF6RRynYKrwBHsffRYrhv9BOkJhPIWIUzKHOoMQF1sOrDSQPvI%2bo16C875X%2fKB0UNFWGbV1rPiBHL%2bhHR9rylpls7mH0cKUUqisYEPO6WP4cIk4L0nmQCa7rR1FispBfFHvM0P2fW3lde%2f7AQ7ifYx0vdZ6nqT7eaBfLvV23q4l1M7vMF8kQxFnCpI7JKlT7krA23JAuCatDkTQKBbUtb0fv%2bRMghSBgXhdCTC"
      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:3432
      • C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.WindowsClient.exe" "RunRole" "38622a84-0cee-4873-a77f-39903d4bfc65" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5844
      • C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.WindowsClient.exe" "RunRole" "bb7e7cbd-dc37-4596-a1bf-b54dd800ccfe" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:6036

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5924f4.rbs

          • Path C:\Config.Msi\e5924f4.rbs
          • Size 214KB
          • SHA256 3f68059634202c018a4a1f089c0616a770fa11a410b52aecd1ed51cd0e00a9d4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (dbb2f4b2e63233fd)\system.config
          • Size 958B
          • SHA256 bbf51abfe0c50cce9265461fdcf9ebc7a501bb2e5e2c84d7735f6f14eaf1098d
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 8d7986009e4ce9f4e20257680b10b352f278355534ff490f0f21038ee18bd6d7
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 644c11e25b5a99e1de4e4456a75e5d8d8b36596454ced4c46cdb2c1ed6b81a8c
          • MD5 SHA1 SHA512 TLSH

          MSIE308.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE308.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE308.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE308.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE308.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE74F.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE74F.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE74F.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI289E.tmp

          • Path C:\Windows\Installer\MSI289E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5924f3.msi

          • Path C:\Windows\Installer\e5924f3.msi
          • Size 9.8MB
          • SHA256 a191c0e59c66a016c47cf7d35eea13da671f97ba57eebb622c16f809c1137083
          • MD5 SHA1 SHA512 SSDEEP TLSH

          mfsl0ixo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dbb2f4b2e63233fd)\mfsl0ixo.newcfg
          • Size 882B
          • SHA256 3af9e658cad93341c2f7c5ae5ec417e8c616fe60da456dba41093f5d7d6b31a9
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dbb2f4b2e63233fd)\user.config
          • Size 683B
          • SHA256 10772b067b356891de4d73e04e540e831214756bd7ac9c9dc138d84d8871a5db
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dbb2f4b2e63233fd)\user.config
          • Size 520B
          • SHA256 0d1d4bf5b0c75fe26c35b872818dd73d466f0c7ab1e2431f37810b07ec09dc76
          • MD5 SHA1 SHA512 TLSH

          memory/3432-191-0x0000000004640000-0x0000000004716000-memory.dmp

          memory/3432-146-0x00000000010A0000-0x00000000010BA000-memory.dmp

          memory/3432-152-0x0000000003ED0000-0x0000000003F64000-memory.dmp

          memory/3432-186-0x0000000004340000-0x00000000043AC000-memory.dmp

          memory/3432-189-0x00000000040C0000-0x0000000004101000-memory.dmp

          memory/3432-156-0x0000000004120000-0x00000000042D0000-memory.dmp

          memory/3432-187-0x0000000004450000-0x00000000044E2000-memory.dmp

          memory/3432-169-0x0000000004070000-0x00000000040C0000-memory.dmp

          memory/4328-67-0x0000000005F40000-0x0000000005F68000-memory.dmp

          memory/5844-215-0x000000001C070000-0x000000001C1F8000-memory.dmp

          memory/5844-214-0x00000000014B0000-0x00000000014CA000-memory.dmp

          memory/5844-212-0x000000001BEC0000-0x000000001C070000-memory.dmp

          memory/5844-211-0x000000001BB70000-0x000000001BC04000-memory.dmp

          memory/5844-209-0x0000000000A80000-0x0000000000B2C000-memory.dmp

          memory/5844-210-0x000000001B700000-0x000000001B76C000-memory.dmp

          memory/6024-37-0x00000000060F0000-0x00000000066AA000-memory.dmp

          memory/6024-24-0x0000000005610000-0x000000000563E000-memory.dmp

          memory/6024-32-0x0000000005730000-0x00000000057C4000-memory.dmp

          memory/6024-36-0x0000000005980000-0x0000000005B30000-memory.dmp

          memory/6024-28-0x0000000005640000-0x000000000564C000-memory.dmp