Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/05/2026, 18:25

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.4MB
  • Sample260504-w2pd6set9j
  • SHA256 5983acfac29f9888006ffbacf620521f38c9842945265f6f9f2c3bcb36b4cc43
  • 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.

  • 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 10 IoCs
  • 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.

  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 9 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 11 IoCs
  • Suspicious use of SendNotifyMessage 9 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.1.24.9579\ae962e4a518f5d89\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:5032
  • 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:5084
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 60972819404BF3BAED7D36DF4D5D1E31 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4244
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7E43.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240680593 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3160
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI80C5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240681218 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:860
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8579.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240682375 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:428
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2852
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1B5F9965D5377221C906849392E78C2C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6116
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 55F3A1F53A70D5A272F40B3096F98C3E E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3196
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3344
    • C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-woc1gx-relay.screenconnect.com&p=443&s=08101352-82e0-4062-8e9a-7af0e0d2260b&k=BgIAAACkAABSU0ExAAgAAAEAAQCtPJxOs%2b9BxWtPNTAx9ZS1TdUy%2bPM4gthhrJ9ZmYpIH7LPMTCehZCUDm8UWWMViyUB69z4%2bN2xWMJ2x2samSMTQ9OG7fi18ptwhYtbqB74fTcRAqvMy8i8%2fdxotqDqDB%2bulUy4GzmjlEpMmENQCav48OUqxZ%2fieO8aFXgFpWniGsznwH1utBvrRLyO3Q8gnmt7fTHLtKuk2DDQTlAjSUSDH9slAkTJQ4AAilB6va4oL9d%2bZ4uEM%2fFmn2Jeq6DEeuOVSRWWD0GnnYLEldDCpPDC0K5LLoW2ia0YjS%2bVaw%2bfo9yyVtV%2fMijZfQgUyBqyt5Bn7Aks%2bs9%2fRAaOf66cjr2y&c=103&c=1&c=1&c=1&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • 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:2456
      • C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsClient.exe" "RunRole" "17b3bce0-7a46-4fef-b5c7-4782b986ef1b" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:464
      • C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsClient.exe" "RunRole" "497c382d-4500-496e-80f1-7e7bab5b1782" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2304

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e58b93a.rbs

          • Path C:\Config.Msi\e58b93a.rbs
          • Size 214KB
          • SHA256 95c2aacc40d20c96b1c931424ea922eaf638b60c7f04c85666dfa429161ef18e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.de-DE.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\Client.de-DE.resources
          • Size 55KB
          • SHA256 f248cb5f7b5eaff5d643fa148c7f675c2f1461a564f19b90ebdb71e575bb5f63
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\Client.en-US.resources
          • Size 64KB
          • SHA256 efdb0b4fcc38b52cbf72336bd107a814db8454003f3495de21e2026a148823ea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.Client.dll
          • Size 411KB
          • SHA256 28ff8468ad2db8b41fe9d9a2971dd56fea0aecad14808fe4b31c9b1072d3b129
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.ClientService.dll
          • Size 90KB
          • SHA256 9cf2c77df0a1a1e854ec1bbc6940d96f508bfb4b0555a07657c77314803a717e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 01341bd42426c3d110136cc94433df00dbad690a56593f7cca41a93f698f214a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 92e831159d5e9f2676241ab7ce80060a0b1dc34684f83797aec93b3ecff41139
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 2292aac48ad575c6d1ed99c862e3408e254db34b8fea50cf3594aa08f3e875d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 3fa1fe4a588015cc94eceb06867f16a5e562293139fbf6b36bde21dba478968d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (ae962e4a518f5d89)\system.config
          • Size 970B
          • SHA256 9b9778b5bbdaf3752103a0dd68db1dbd2da9d47e8bd8650154945e5d4fa816c4
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 216b10c887784499981aecc3258888d57206d20da140c3cc49a4298ee96337c9
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 9ed1b073c128ae1e507676396a910b7293fa10fc7ac1b64bc8509b6acd88e55f
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 aed2140f20f5fd3440528477e8b652e48ac3faaa264ea82e67f27d26a6724d8e
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 c6f427e4fe5c6b9c82f4e6db403466cff8212d4ff0b277a12b0c06de33106f3a
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 746B
          • SHA256 76ced2c52d647683572ceac0687933e96e198b5a6f998457fa334763cc1ef978
          • MD5 SHA1 SHA512 TLSH

          MSI7E43.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7E43.tmp
          • Size 1.1MB
          • SHA256 cd6bccce073b2a5205840ec31c91df0d443cc57c68756de2c03e21db8e3fc157
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7E43.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7E43.tmp-\ScreenConnect.Core.dll
          • Size 562KB
          • SHA256 c51a2b5cb5054ec0136e332bf290c8af3392d7936b5137a07423df08ab33d264
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7E43.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 432abf3a198ff64fb2c660eb06b2bb33a16cf69fd28d836cfcb65c43d37dc462
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7E43.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 10933424536d53e397f651915f862c933199c50722943c236b020787b2e8f147
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI80C5.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI80C5.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 528242c7745783b3b4ae72fec13bb9bd49b17b0e00f60c027351147f21fdd359
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.1.24.9579\ae962e4a518f5d89\ScreenConnect.ClientSetup.msi
          • Size 11.9MB
          • SHA256 c513702f18bd4a84fa54a867960ffdafac8b5dd3798844807fa0e4e5bf021083
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIBB3E.tmp

          • Path C:\Windows\Installer\MSIBB3E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ae962e4a518f5d89)\user.config
          • Size 585B
          • SHA256 54c0eddf583eec6848d6559daf573d9257c27b54f03df9493c458960ad631d90
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ae962e4a518f5d89)\user.config
          • Size 585B
          • SHA256 7ccadd6f1de53db1a9f8568bf69fb6311c55d4d6369c5ee931ecb16d1c017fa6
          • MD5 SHA1 SHA512 TLSH

          va5tp3e4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (ae962e4a518f5d89)\va5tp3e4.newcfg
          • Size 585B
          • SHA256 8a38f07849a1b9d3e200bd97f6d29e1894664739fd71d586f5e709c3453c8284
          • MD5 SHA1 SHA512 TLSH

          memory/428-131-0x0000000002730000-0x00000000027AC000-memory.dmp

          memory/464-217-0x00000000032E0000-0x000000000334A000-memory.dmp

          memory/464-222-0x0000000003110000-0x000000000312A000-memory.dmp

          memory/464-228-0x0000000001800000-0x000000000180C000-memory.dmp

          memory/464-219-0x000000001BFE0000-0x000000001C074000-memory.dmp

          memory/464-220-0x000000001C230000-0x000000001C3E0000-memory.dmp

          memory/464-221-0x000000001C570000-0x000000001C6F8000-memory.dmp

          memory/464-216-0x0000000000F70000-0x000000000101A000-memory.dmp

          memory/464-223-0x0000000003270000-0x000000000328A000-memory.dmp

          memory/860-98-0x0000000005450000-0x000000000545E000-memory.dmp

          memory/860-97-0x0000000000D80000-0x0000000000DFC000-memory.dmp

          memory/860-88-0x0000000005000000-0x0000000005028000-memory.dmp

          memory/2304-277-0x00000000012F0000-0x00000000012FC000-memory.dmp

          memory/2304-272-0x0000000002EC0000-0x0000000002F01000-memory.dmp

          memory/2456-225-0x0000000003F70000-0x0000000003FD4000-memory.dmp

          memory/2456-185-0x0000000004390000-0x0000000004540000-memory.dmp

          memory/2456-187-0x0000000004230000-0x0000000004280000-memory.dmp

          memory/2456-181-0x0000000004140000-0x00000000041D4000-memory.dmp

          memory/2456-191-0x00000000042F0000-0x000000000435A000-memory.dmp

          memory/2456-194-0x0000000004280000-0x00000000042C1000-memory.dmp

          memory/2456-226-0x0000000001910000-0x000000000191B000-memory.dmp

          memory/2456-196-0x00000000047D0000-0x00000000048A5000-memory.dmp

          memory/2456-175-0x0000000004000000-0x000000000401A000-memory.dmp

          memory/2456-192-0x00000000045E0000-0x0000000004672000-memory.dmp

          memory/2456-227-0x00000000041E0000-0x0000000004217000-memory.dmp

          memory/3160-43-0x0000000003160000-0x000000000318E000-memory.dmp

          memory/3160-47-0x00000000031A0000-0x00000000031AC000-memory.dmp

          memory/3160-61-0x0000000002B50000-0x0000000002BCC000-memory.dmp

          memory/3160-55-0x0000000005800000-0x00000000059B0000-memory.dmp

          memory/3160-51-0x00000000055B0000-0x0000000005644000-memory.dmp

          memory/3196-212-0x0000000000790000-0x000000000080C000-memory.dmp

          memory/4244-133-0x0000000000D50000-0x0000000000DCC000-memory.dmp

          memory/4772-3-0x0000000006180000-0x0000000006190000-memory.dmp

          memory/4772-2-0x0000000006180000-0x0000000006190000-memory.dmp

          memory/4772-7-0x0000000006190000-0x0000000006340000-memory.dmp

          memory/4772-1-0x00000000020A0000-0x00000000020A8000-memory.dmp

          memory/4772-6-0x0000000003B40000-0x0000000003B68000-memory.dmp

          memory/4772-8-0x00000000068F0000-0x0000000006E96000-memory.dmp

          memory/4772-4-0x00000000039B0000-0x00000000039BC000-memory.dmp

          memory/4772-12-0x0000000003AC0000-0x0000000003B24000-memory.dmp

          memory/4772-5-0x0000000006040000-0x00000000060D4000-memory.dmp

          memory/4772-0-0x0000000006180000-0x0000000006190000-memory.dmp

          memory/4772-9-0x0000000006180000-0x0000000006190000-memory.dmp

          memory/5032-218-0x0000000000C90000-0x0000000000D0C000-memory.dmp

          memory/5032-132-0x0000000000C90000-0x0000000000D0C000-memory.dmp

          memory/5084-224-0x000001A419A60000-0x000001A419A6C000-memory.dmp

          memory/6116-211-0x00000000028A0000-0x000000000291C000-memory.dmp