Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/08/2026, 06:14

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260809-gzedvssbmg
  • SHA256 6da94ae29b7c3f8a3983ea42ca891eb24a784ae2bc0b9377724dafebacfdf7d9
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 16 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 16 IoCs
  • Drops file in Windows directory 13 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\26116ac97bc64dcf\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:4628
  • 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:4860
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B29D8FD51E5C6C03BFC7A01DE7412BAD C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4172
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA3DC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240690234 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5028
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA8B0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240691546 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1860
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIAEBB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240692953 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1060
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4732
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 00A5284CC0FC1AB459EC7DB210E7BE10
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1920
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 071247E2E225D878DA80070DF071059B E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:452
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5024
    • C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-q0mttg-relay.screenconnect.com&p=443&s=3c47c084-a3c0-4924-9704-ce16b17e7cfd&k=BgIAAACkAABSU0ExAAgAAAEAAQBNRQHJJexYogTP65rilol4TXPlkuAatFS0RwqdcXGwfNdYq1O5O98zZb1kyH%2fpsa%2bWkBwVaka6nByMACo%2bhwxpzpxh%2fDhxJRlK1T7KzqAKeOyqbM7Eb9DeeyGEJ6iIGkAYSA%2brlzYLpBqG5Fk9wXj6hHViVZyKINz2AvZvLaqvdLdrxp1yLlh7sH%2fqlURHg2HlGKqG6kF%2b0k2TNEPmlmiPKF8GRUIwh94SaP5hQo3%2bmjwNAie0Xe8XFxC%2fhKgjzrXW3jhbpKaJex2iH2MTwkZeG10Io0eCYCDLLnG%2bB4g8o7huSYcmewfIImeHeaJ14Z7AVYR1ERnw8PlsfgCmRczA"
      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:3732
      • C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.WindowsClient.exe" "RunRole" "1d31708a-fef9-4b46-9b74-f65ddd6db0f3" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3424
      • C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.WindowsClient.exe" "RunRole" "1d49d4a9-e9ad-48f9-a5f3-31f3b6f117f9" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4016

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e58f3b3.rbs

          • Path C:\Config.Msi\e58f3b3.rbs
          • Size 214KB
          • SHA256 5e70ae6e4fe1fead5c7bba9be7a53f4ba0a8a2a333b1b39fbe44d7a0308b802c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (26116ac97bc64dcf)\system.config
          • Size 964B
          • SHA256 e0e7c363a885ab57709525926c054bf6e1ea0b57386d94768496ecc88d909a49
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 7949e0d1cde7091f51dd1b89cafecdf1b0c2013ac6f71fbb23ccf74dae8bddff
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 0f9634b74d5a8ea0237937b3c883d71ee6cf8c005b2ab41c53327d6078a2cb33
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 7bd4cc7094d7c16ec0b3cc54e4e18c2ad7a26035657091609468d449fe485653
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 8a460d95fd5b6b28d5e46b9ab67134edd6ba196b237f536bce43f850a20f4527
          • 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 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
          • MD5 SHA1 SHA512 TLSH

          MSIA3DC.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA3DC.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA3DC.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA3DC.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA3DC.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA3DC.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA8B0.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA8B0.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\26116ac97bc64dcf\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 2ee83ac5100407499f2796f42c5f35a5889a618f5f8abe8bf2afeee67663e518
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF5B6.tmp

          • Path C:\Windows\Installer\MSIF5B6.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          g25s51ku.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (26116ac97bc64dcf)\g25s51ku.newcfg
          • Size 683B
          • SHA256 e84668aaff914dd6b063485f3f1a6e437af47879667fa9fa61c4b9f56ae417dd
          • MD5 SHA1 SHA512 TLSH

          jjfzjy0h.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (26116ac97bc64dcf)\jjfzjy0h.newcfg
          • Size 881B
          • SHA256 907827dc9b36a2fdc605896b882055e3042428c1bec3f6f687626af22a66cacc
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (26116ac97bc64dcf)\user.config
          • Size 520B
          • SHA256 4ff463adf114140c334e9537d75504fd30953c0b47e89a4fb9debb6f0070829b
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (26116ac97bc64dcf)\user.config
          • Size 881B
          • SHA256 6c8787a55a3efcf41d1f58ad9e999438b691fc598c150dbb5a0ff75b99b149d4
          • MD5 SHA1 SHA512 TLSH

          w3c4zarv.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (26116ac97bc64dcf)\w3c4zarv.newcfg
          • Size 881B
          • SHA256 40d2db8c9e3e7a74ba1efdd54456a5fbc0411330bf856f6960ac0888df8e023b
          • MD5 SHA1 SHA512 TLSH

          memory/1860-86-0x0000000004E60000-0x0000000004E88000-memory.dmp

          memory/2116-7-0x0000000005EE0000-0x0000000006090000-memory.dmp

          memory/2116-5-0x0000000005CF0000-0x0000000005D84000-memory.dmp

          memory/2116-8-0x0000000006640000-0x0000000006BE4000-memory.dmp

          memory/2116-0-0x0000000005ED0000-0x0000000005EE0000-memory.dmp

          memory/2116-3-0x0000000005ED0000-0x0000000005EE0000-memory.dmp

          memory/2116-2-0x0000000005ED0000-0x0000000005EE0000-memory.dmp

          memory/2116-6-0x0000000005D80000-0x0000000005DA8000-memory.dmp

          memory/2116-1-0x0000000001E30000-0x0000000001E38000-memory.dmp

          memory/2116-9-0x0000000005ED0000-0x0000000005EE0000-memory.dmp

          memory/2116-4-0x0000000001E50000-0x0000000001E5C000-memory.dmp

          memory/3424-233-0x000000001B060000-0x000000001B0F4000-memory.dmp

          memory/3424-230-0x0000000000080000-0x000000000012E000-memory.dmp

          memory/3424-231-0x0000000002210000-0x000000000227C000-memory.dmp

          memory/3424-237-0x0000000000A20000-0x0000000000A61000-memory.dmp

          memory/3424-236-0x000000001C270000-0x000000001C3F6000-memory.dmp

          memory/3424-234-0x000000001B2B0000-0x000000001B460000-memory.dmp

          memory/3424-235-0x0000000000A00000-0x0000000000A1A000-memory.dmp

          memory/3732-167-0x0000000003D10000-0x0000000003D2A000-memory.dmp

          memory/3732-214-0x0000000004420000-0x00000000044F6000-memory.dmp

          memory/3732-212-0x0000000003F50000-0x0000000003F91000-memory.dmp

          memory/3732-210-0x0000000004240000-0x00000000042D2000-memory.dmp

          memory/3732-209-0x00000000041D0000-0x000000000423C000-memory.dmp

          memory/3732-190-0x0000000003F00000-0x0000000003F50000-memory.dmp

          memory/3732-177-0x0000000004020000-0x00000000041D0000-memory.dmp

          memory/3732-173-0x0000000003DD0000-0x0000000003E64000-memory.dmp

          memory/5028-54-0x00000000055C0000-0x0000000005770000-memory.dmp

          memory/5028-42-0x0000000002EE0000-0x0000000002F0E000-memory.dmp

          memory/5028-50-0x0000000005370000-0x0000000005404000-memory.dmp

          memory/5028-46-0x0000000002ED0000-0x0000000002EDC000-memory.dmp