Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    08/09/2026, 12:19

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260908-phcspsbj2y
  • SHA256 d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99
  • 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:3572
  • 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:1864
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 57C2757CAAEFFAC6F443DB18A9ADAA12 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4652
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3B7D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240663656 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:652
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3FA5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240664500 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2868
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI44D6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240665828 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4592
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:512
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6DE5262D09AAF7D89C0C9C3985F2D24F
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2068
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4F3E7C2999F107DDD03E193C8DFD024D E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:1172
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4776
    • C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ia4fsw-relay.screenconnect.com&p=443&s=807bc4cf-8755-4275-a6fc-f7f35ef15a59&k=BgIAAACkAABSU0ExAAgAAAEAAQAVvCACXi4S74lJmBJG6YV828pjlZOxFh3UT1XexSXiiWnQv7r4yM0eC4tl%2fSCbsPcRUlv1JGYRUxSB%2bu8pGY%2fYlhoG9aTpZ2l2p8nQqQU5uIIisVAz4FvnJFgk%2ffhR9QOagDKawY24JjoWKHYPQLWryUfXiPBipFj2lkfbcTDJb4tNXmRV9Ww85P61H8YLbrm4GpU2Egk7ZnOAJaQdgrN%2f0FskJjjGZsStWIxObo9xclnr0QOnYUV66KLT8NyXwnQ3lkfyhIDVpisRA8iXBc7ucIUEGrPLr3reMEihTRTRYXmsC4IoUb3NPuRN2dFbSABk12Mz0%2bPVjG%2bqVSL0q%2brO&c=mobiler1234&c=bridges12&c=&c=&c=&c=&c=&c="
      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:820
      • C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe" "RunRole" "b20e6e50-790f-432e-9350-e0ea13dbf5a2" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:468
      • C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe" "RunRole" "32df7b72-ae5b-4d94-8372-2ff481b7af84" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4184

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e587d3b.rbs

          • Path C:\Config.Msi\e587d3b.rbs
          • Size 214KB
          • SHA256 0a2fa85f91edb5a9dcd81d48c07cbf1f11106b7a0c2772dc7ad9280e8038fcaa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\system.config
          • Size 960B
          • SHA256 11b124f96ebe359c4c20769e9dcfcfa6aadc2068d6bca7053ac286b23dae6683
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 35a7d8ba817afae60200b607ad149192b3c754674a5bd6d4423cdb18c04e0134
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 80c8166ad38504c5c70b3bab46928f25cd49bcab8f30b9ce4dd52d414c8e174d
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 aa8ce26eaabb5b818d4c0403181c2d4b20b548493ead4eacd5835edadf48b4fd
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 21c64c480433234cbab2611d98b991f426f6113729e0cbcd3d2c510c33466e96
          • 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

          MSI3B7D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B7D.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B7D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B7D.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B7D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3B7D.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3FA5.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3FA5.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7F3E.tmp

          • Path C:\Windows\Installer\MSI7F3E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e587d3a.msi

          • Path C:\Windows\Installer\e587d3a.msi
          • Size 9.8MB
          • SHA256 d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99
          • MD5 SHA1 SHA512 SSDEEP TLSH

          gbpdrjyr.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4bf7ac5dfcd46ca7)\gbpdrjyr.newcfg
          • Size 881B
          • SHA256 95630a0f5637625154caf73c14db24b7c18a3ab5df2538719ebc368c1fce8f88
          • MD5 SHA1 SHA512 TLSH

          hwy2t4zq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4bf7ac5dfcd46ca7)\hwy2t4zq.newcfg
          • Size 881B
          • SHA256 87471bf562c6d3c6ff8c95fee3cc91f9a7c83718c8be7752e8088dd029c67f1c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4bf7ac5dfcd46ca7)\user.config
          • Size 520B
          • SHA256 91c582c200e3128346587e86058860cd8ffdbc1d1c377dc1fbe133f1cc0ebdd6
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4bf7ac5dfcd46ca7)\user.config
          • Size 683B
          • SHA256 bb17ea248d2ed24c62dda29930b2c66259930a23f1de93ad73a1d0c27deecb97
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 a22580bbd6f20f84b3ecc096e3e7a3a31ad11f5eb870f274783abc66b4ebaa63
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {416855d5-8a01-4df1-9cc5-a2b93808c510}_OnDiskSnapshotProp

          • Path \??\Volume{d78106ee-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{416855d5-8a01-4df1-9cc5-a2b93808c510}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 6a7f928fcfd7f0c1f837e158e193795ced980f9874f3673e48daf52c4d5976f3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/468-220-0x000000001BB30000-0x000000001BCE0000-memory.dmp

          memory/468-222-0x00000000010C0000-0x00000000010DA000-memory.dmp

          memory/468-217-0x0000000000850000-0x0000000000900000-memory.dmp

          memory/468-223-0x000000001BE70000-0x000000001BFF6000-memory.dmp

          memory/468-219-0x000000001B8E0000-0x000000001B976000-memory.dmp

          memory/468-218-0x0000000002900000-0x000000000296C000-memory.dmp

          memory/652-33-0x0000000002BA0000-0x0000000002BAC000-memory.dmp

          memory/652-37-0x0000000005020000-0x00000000050B6000-memory.dmp

          memory/652-41-0x0000000005270000-0x0000000005420000-memory.dmp

          memory/652-42-0x00000000059D0000-0x0000000005F74000-memory.dmp

          memory/652-29-0x0000000002BC0000-0x0000000002BEE000-memory.dmp

          memory/820-186-0x0000000004320000-0x000000000438C000-memory.dmp

          memory/820-187-0x0000000004390000-0x0000000004422000-memory.dmp

          memory/820-163-0x0000000003F20000-0x0000000003FB6000-memory.dmp

          memory/820-157-0x0000000003E50000-0x0000000003E6A000-memory.dmp

          memory/820-189-0x00000000040A0000-0x00000000040E1000-memory.dmp

          memory/820-191-0x0000000004570000-0x0000000004646000-memory.dmp

          memory/820-169-0x0000000004050000-0x00000000040A0000-memory.dmp

          memory/820-167-0x0000000004170000-0x0000000004320000-memory.dmp

          memory/2868-74-0x0000000002C70000-0x0000000002C98000-memory.dmp