Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    16/08/2026, 12:19

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260816-phcspsxdng
  • SHA256 8bdf35df92f39dd47ed8e68e88c4434bea7a4af89fca7f8175f0f2a8402500dd
  • 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 13 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 13 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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
    PID:4744
  • 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:3104
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 532D1988DFF9E7137D67C441176EB0D0 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5176
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI30FE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240660890 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2084
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3583.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240661906 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2452
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI39AB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240662953 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1140
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2756
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AB8894BA2CAEFC1FA0B1907F637E2C90
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5696
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3CB1CF90BC467C1B1CA07803DBCC3B96 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:2268
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5508
    • C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-kuow8m-relay.screenconnect.com&p=443&s=e0b351db-dff3-4f67-a348-7544635bb14a&k=BgIAAACkAABSU0ExAAgAAAEAAQBdPqI7KKEX0KnGcF7pKLScGESJ1peKmnzUwbKFHEfrjzp3sY%2fwJnyXlUnhI6F2Hdq9nzelVoI3fYjuX6Zi4yO6pj4SW1LNx83rXd3pToQ7D5B63dpnzHDEPVYIo%2bo38a6siRCpXNflci5rq2l2rQDvMmMQpxEVf7CpnB9PtElTQBH1H%2f%2bNje7w5FMVp0R3gBe9VWETnzQLZwI12SQnMySvTk3g8ahIdqGk30CcWwcBaUXLI0nX4dayW%2bp67XhWfGXSsYpIjgvIJB0%2fPHFssMWW0FIFdBetv5x4HNbTXW4MefLUa3jJZH2VRCH7Fb6cKV4NdL6fis3Qer7MEUVw9o7p"
      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:736
      • C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.WindowsClient.exe" "RunRole" "f36205df-1f00-4d6f-b1b4-427eb8671283" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:960
      • C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.WindowsClient.exe" "RunRole" "4a65a507-0c02-4b86-9476-bb88f045d121" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4316

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e587b95.rbs

          • Path C:\Config.Msi\e587b95.rbs
          • Size 214KB
          • SHA256 54c7b2bc68f0e938b452e2be18ba6f8e20bfaebc0a93c07195992798a8a940d1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d2932dc7c994bc2e)\system.config
          • Size 956B
          • SHA256 3611d15dde5ad9763115a44a0d94160347a3c1814f8ffaceac8cdec22e35e60f
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 4ac3f6571581f3a0d3bd886334fc06af9ce06cd655cd3542ec76f625c52b3d2a
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 cafc8de282ae13ef56a7bcf98ff7fff163615cf84fd94d60f3557e359bf6c41c
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 ebbc2ddb19acc17c2f99df0b5808a6d5734fad3f5cb813863c622e96d498163c
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 a65435fecc20656bd66adb4d2ecebeb561a08db652479fe21f52117b98438381
          • 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

          MSI30FE.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30FE.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30FE.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30FE.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30FE.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30FE.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3583.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3583.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7D79.tmp

          • Path C:\Windows\Installer\MSI7D79.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e587b94.msi

          • Path C:\Windows\Installer\e587b94.msi
          • Size 9.8MB
          • SHA256 8bdf35df92f39dd47ed8e68e88c4434bea7a4af89fca7f8175f0f2a8402500dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          1awb4cjl.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d2932dc7c994bc2e)\1awb4cjl.newcfg
          • Size 883B
          • SHA256 36b89ebd93459b1df5a29080374fdb7c9471e739d5c196c6c9b85c8ae94f2c5d
          • MD5 SHA1 SHA512 TLSH

          hvlrlrre.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d2932dc7c994bc2e)\hvlrlrre.newcfg
          • Size 883B
          • SHA256 9207047095e2ca8f95001096f6d1883e492c1321ea8968ee1a67c5b4777753bc
          • MD5 SHA1 SHA512 TLSH

          niwjiuvp.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d2932dc7c994bc2e)\niwjiuvp.newcfg
          • Size 683B
          • SHA256 f4a4d614baa1ac378368107b7b148c78b30fc46334a832b881cb846e08422ae7
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d2932dc7c994bc2e)\user.config
          • Size 520B
          • SHA256 b8d4965ace6486c7c09826668712620a06fab950683d57ea0d027fdf33a4b308
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 8085af0ff13c1205b36dd445bd7b1e71c63be7e81d9446834bfb971958975780
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {e599efb5-7d13-4e45-b1ba-e0c7205d17b9}_OnDiskSnapshotProp

          • Path \??\Volume{12d9ef41-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{e599efb5-7d13-4e45-b1ba-e0c7205d17b9}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 aae23a22348062bc5b546d7acb2e82785a2ccb0913820f662691405f175a05dc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/736-200-0x0000000004670000-0x0000000004702000-memory.dmp

          memory/736-204-0x0000000004850000-0x0000000004926000-memory.dmp

          memory/736-157-0x0000000004140000-0x000000000415A000-memory.dmp

          memory/736-198-0x0000000004600000-0x000000000466C000-memory.dmp

          memory/736-163-0x0000000004200000-0x0000000004294000-memory.dmp

          memory/736-169-0x0000000004340000-0x0000000004390000-memory.dmp

          memory/736-167-0x0000000004450000-0x0000000004600000-memory.dmp

          memory/736-202-0x0000000004390000-0x00000000043D1000-memory.dmp

          memory/960-225-0x000000001D300000-0x000000001D486000-memory.dmp

          memory/960-224-0x0000000002EF0000-0x0000000002F0A000-memory.dmp

          memory/960-223-0x000000001BF10000-0x000000001C0C0000-memory.dmp

          memory/960-221-0x000000001BCC0000-0x000000001BD54000-memory.dmp

          memory/960-220-0x000000001B870000-0x000000001B8DC000-memory.dmp

          memory/960-219-0x0000000000CC0000-0x0000000000D6E000-memory.dmp

          memory/2084-41-0x00000000050C0000-0x0000000005270000-memory.dmp

          memory/2084-29-0x0000000004D80000-0x0000000004DAE000-memory.dmp

          memory/2084-33-0x0000000004DC0000-0x0000000004DCC000-memory.dmp

          memory/2084-37-0x0000000004E70000-0x0000000004F04000-memory.dmp

          memory/2084-42-0x0000000005820000-0x0000000005DC4000-memory.dmp

          memory/2452-74-0x0000000004DE0000-0x0000000004E08000-memory.dmp