Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    28/07/2026, 00:23

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260728-apylesgn9w
  • SHA256 e00c964a077e35a5a9b1395eb9f31bcc9f9991b2e021d65949ce490ca252b25a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 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 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 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 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 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:556
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\312cd8afb7f86cdc\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:4752
  • 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:2712
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 890017F0F878169D9B76BF8BC78C253E C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3800
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5B69.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240671656 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4856
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5D8D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240672203 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3200
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7D7A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240680312 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4020
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2204
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DBFA5802A1122E4488AE0A32121E6137
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3768
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 45E0996DCE4090B1C4C5701D5C2D13CE E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:904
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3272
    • C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-bk9l79-relay.screenconnect.com&p=443&s=ba5d5634-6d35-4a17-96e9-d55dcd33620d&k=BgIAAACkAABSU0ExAAgAAAEAAQA9a7AXGnpPI2WskYancC1iJhsGlXah%2f01Ng2fxbyKoiAA%2fLrsSukQWJkFC%2fysB7K0J8dqEvYlk8rk9pn%2bjR4%2f%2fWDkYPNudxVKVRlQZ%2bvbz2Qq8Jn84kj2Jd68y%2f9QAjcrAJA%2fmZLkbY%2fLsj9eDE9DNjhE2ZR4XrfgQqv1XamOx5yZ9TSApChNKb2PsPVwuikBlZ74iC1MsACdvsf8eeGQ5nTDAvKCENXp4kut8rjmBLg9VfaoWcNw2i2MAxqnhZTItqhLZed11OnoklW2HRCbscBnwiEpNYhP65Ci7N1HLH0rMQCBiM8XM4QrCiXcIrV7DlSFsq4ySpcufnRUMcWO1"
      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:1912
      • C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.WindowsClient.exe" "RunRole" "312f9591-9bb5-4eef-932d-9486b6ecc6d1" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1936
      • C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.WindowsClient.exe" "RunRole" "3e2352f3-c49d-4a26-abce-252c1ffbc0ac" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5076

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58c1b6.rbs

          • Path C:\Config.Msi\e58c1b6.rbs
          • Size 214KB
          • SHA256 f10fd19b9ae358eebb66a75ba1dbf782c5350e50790c3a57f42333084cdc2712
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (312cd8afb7f86cdc)\system.config
          • Size 964B
          • SHA256 356d8cdf3ccb0241184e1fd15370654dfd85f91055fade3b4e196380ffba4fa4
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 e482710d27516766650249885dde7c89f2b9acf7954765f032367f67848ebb6b
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 7871ecf32071c6954d6a5e42251773bc12b95064ba53e0a9c0773d9a9dcd1dc0
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 a1207d524468aa2c91c88581dcf88d1d365083ed1d9728e3ab47fa01d319b814
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 825b4c0c8ff2b5a0ede942cd1e86faf8c6ac1d788c9fd6d720bf3eb814a13ece
          • 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

          MSI5B69.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5B69.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5B69.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5B69.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5B69.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5B69.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D8D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5D8D.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\312cd8afb7f86cdc\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 d1bfe7b5085a0f9813eba67bc2724da59c078854897ea773abbd12055fec025c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC3E8.tmp

          • Path C:\Windows\Installer\MSIC3E8.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          oklvmyak.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (312cd8afb7f86cdc)\oklvmyak.newcfg
          • Size 882B
          • SHA256 f8317476848f3198673b1ee57787407d0f22dec0c6dcc48fcd00dba1f784974e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (312cd8afb7f86cdc)\user.config
          • Size 520B
          • SHA256 d7e07963e872570ca3de1ee1bc1f4a84e00f4928679c13017bc414f80e60f091
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (312cd8afb7f86cdc)\user.config
          • Size 683B
          • SHA256 69588d970314df9a9e04d9c4571416e1428ce5c49fc1c6c22e58dbe8d7c63f99
          • MD5 SHA1 SHA512 TLSH

          memory/556-0-0x0000000005F40000-0x0000000005F50000-memory.dmp

          memory/556-6-0x0000000005F50000-0x0000000006100000-memory.dmp

          memory/556-7-0x00000000066B0000-0x0000000006C54000-memory.dmp

          memory/556-5-0x0000000005ED0000-0x0000000005EF8000-memory.dmp

          memory/556-4-0x0000000005E20000-0x0000000005EB4000-memory.dmp

          memory/556-3-0x0000000002070000-0x000000000207C000-memory.dmp

          memory/556-2-0x0000000005F40000-0x0000000005F50000-memory.dmp

          memory/556-1-0x0000000001E50000-0x0000000001E58000-memory.dmp

          memory/556-8-0x0000000005F40000-0x0000000005F50000-memory.dmp

          memory/1912-198-0x0000000004010000-0x0000000004051000-memory.dmp

          memory/1912-204-0x0000000004640000-0x0000000004716000-memory.dmp

          memory/1912-170-0x0000000004060000-0x00000000040F4000-memory.dmp

          memory/1912-193-0x0000000004150000-0x00000000041BC000-memory.dmp

          memory/1912-174-0x00000000042B0000-0x0000000004460000-memory.dmp

          memory/1912-164-0x00000000019F0000-0x0000000001A0A000-memory.dmp

          memory/1912-196-0x0000000004460000-0x00000000044F2000-memory.dmp

          memory/1912-176-0x0000000004100000-0x0000000004150000-memory.dmp

          memory/1936-226-0x00000000026A0000-0x000000000270C000-memory.dmp

          memory/1936-225-0x0000000000620000-0x00000000006CE000-memory.dmp

          memory/1936-227-0x000000001B660000-0x000000001B6F4000-memory.dmp

          memory/1936-228-0x000000001B8B0000-0x000000001BA60000-memory.dmp

          memory/1936-229-0x0000000002630000-0x000000000264A000-memory.dmp

          memory/1936-230-0x000000001C870000-0x000000001C9F6000-memory.dmp

          memory/3200-83-0x00000000052B0000-0x00000000052D8000-memory.dmp

          memory/4856-51-0x00000000054A0000-0x0000000005650000-memory.dmp

          memory/4856-47-0x00000000051E0000-0x0000000005274000-memory.dmp

          memory/4856-43-0x0000000002DD0000-0x0000000002DDC000-memory.dmp

          memory/4856-39-0x0000000002D90000-0x0000000002DBE000-memory.dmp