Analysis

  • max time kernel
    149s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    11/08/2026, 11:19

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260811-nfapwsdk2x
  • SHA256 0830a7330c3b6fbf799ff5481048f6784342b16e456b2ac8c0fb645baa00fea6
  • 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 2 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 30 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 24 IoCs
  • Suspicious use of SendNotifyMessage 22 IoCs
  • Suspicious use of WriteProcessMemory 8 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:1544
  • 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:2448
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 6D3B34AC0D220369C37A2BA808DE79E9 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4040
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE9F2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240642703 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2528
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEFDF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240644062 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2260
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF61A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240645656 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3776
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2552
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 16A16FBFAA5F62EB51DE131E2840BB28
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3904
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A0768C158EE74292D497F67BD2F73856 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:5684
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4024
    • C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-t2328q-relay.screenconnect.com&p=443&s=f11b913c-e95c-4bc4-bc66-a76c450d9b9b&k=BgIAAACkAABSU0ExAAgAAAEAAQBdx53EpZnyKEVlhWKG8TTmmPFgkzbSYr0DC5WD3OWb%2fQsaBClgWoWdv%2fCu6PLWDC8WQAQfMpyzCNvvqaqDYJw3RXEP4X6nIqxCtD1HKvzjRzNejnlgPJOZb5Nw10wfsN21ADjmvXKoy01QH2vuQA2r2Y0JPIpNiRASjkHYI1MBVud0D0YP%2bzBlV5IqcgaVAmSHqBp1x1DWzSfwqGMNOIMXxdYc32QQ9VF5SKY3vMrg5%2fn7KZRclkVHjVmsnsMAOHU%2b1aX6YJ4CW5CxM%2bL7dhCDvsEyKgl%2fBlvEnU4yTuYGl6AQIG6bCuElPsLBvq%2fg1o6L6qBjJ%2bT7BsLscIwIiHbh"
      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:1740
      • C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.WindowsClient.exe" "RunRole" "a839fb08-db8c-4e2e-85a7-838ba1432487" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:732

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e583af2.rbs

          • Path C:\Config.Msi\e583af2.rbs
          • Size 214KB
          • SHA256 fb024c4c4960e64b03fd138f011622e6e3f6441165d8dd33e23d138603ae3c0d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7a8133cb7e780255)\system.config
          • Size 962B
          • SHA256 5a11ccfad175f588fb09a095aadd64a75b6a1c50d4f641e260fbefbfbfa5eca3
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 089b5d95f6e223c3bbe024285468482eb86212ae1e1a564d268356ddda681f06
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 1e98686dfed4bd07a5b30dbe4f2a4203d483c9f0b33a8705252241abd7d86dd2
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 dc294b4c040df65c7f8f81f262dc5a51b0608a9b57781951c5fb485314f38cfc
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 a992f2a9ee00a5390712faab664399019508512def20968c23cd2a2483ecd42b
          • 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

          MSIE9F2.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE9F2.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE9F2.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE9F2.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE9F2.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE9F2.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

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

          ScreenConnect.WindowsInstaller.dll

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

          MSI3D15.tmp

          • Path C:\Windows\Installer\MSI3D15.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e583af1.msi

          • Path C:\Windows\Installer\e583af1.msi
          • Size 9.8MB
          • SHA256 0830a7330c3b6fbf799ff5481048f6784342b16e456b2ac8c0fb645baa00fea6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2mtq2mmh.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\2mtq2mmh.newcfg
          • Size 884B
          • SHA256 455d1a2d9fa469840e04d1e6a4c662c54da2f4c2d122c7c8c62d4d6b430b96bc
          • MD5 SHA1 SHA512 TLSH

          2pp441pl.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\2pp441pl.newcfg
          • Size 884B
          • SHA256 fd9f36e499d95a746727fb2b94582cab1272fa5e81dc9cc83cd2763626366275
          • MD5 SHA1 SHA512 TLSH

          33bpvysw.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\33bpvysw.newcfg
          • Size 884B
          • SHA256 2785284783e69bef3cfbf9a4f550af7933155560e609edfbbd478419d8cc1d8e
          • MD5 SHA1 SHA512 TLSH

          htkgbjys.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\htkgbjys.newcfg
          • Size 683B
          • SHA256 f1de930b5ddcfbfae7d526bbf4a6fe4ba3720a57847b6b7b1e8d9eae5ca65139
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\user.config
          • Size 884B
          • SHA256 33fd627dfd6a1fe104badbec035d2b4d366290cc48a23b15bac7b9028a480853
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\user.config
          • Size 884B
          • SHA256 90112d31bc6dde7622710bb79b05838a522dd202bc65c1ca2c00e914e082959a
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\user.config
          • Size 884B
          • SHA256 9f831a3fb22595a34fd1f2e4b03dfe6eb0364e7af991dbc8b2e5e6e7fd556cf2
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\user.config
          • Size 520B
          • SHA256 b90b7c4c8e2cd3f42ab83b6b5ba325fb3b81cd13727fb117f822f014f6e959ae
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\user.config
          • Size 884B
          • SHA256 7a2eea095c2ae0bf21353013459b74ab09906a4b55610b41fc85cf0bf8419927
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7a8133cb7e780255)\user.config
          • Size 884B
          • SHA256 846fc8b4cfca8a743e47301192a1b77463993dda087d5252b83f16e89fca58b6
          • MD5 SHA1 SHA512 TLSH

          memory/732-237-0x000000001D160000-0x000000001D309000-memory.dmp

          memory/732-221-0x0000000002660000-0x00000000026CC000-memory.dmp

          memory/732-289-0x000000001D160000-0x000000001D309000-memory.dmp

          memory/732-225-0x000000001CBA0000-0x000000001CD26000-memory.dmp

          memory/732-224-0x0000000002620000-0x000000000263A000-memory.dmp

          memory/732-223-0x000000001B7B0000-0x000000001B960000-memory.dmp

          memory/732-222-0x000000001B560000-0x000000001B5F4000-memory.dmp

          memory/732-220-0x00000000005E0000-0x000000000068E000-memory.dmp

          memory/1740-200-0x0000000004180000-0x00000000041C1000-memory.dmp

          memory/1740-178-0x0000000004130000-0x0000000004180000-memory.dmp

          memory/1740-165-0x0000000004270000-0x0000000004420000-memory.dmp

          memory/1740-155-0x0000000003F30000-0x0000000003F4A000-memory.dmp

          memory/1740-202-0x00000000046A0000-0x0000000004776000-memory.dmp

          memory/1740-197-0x00000000041F0000-0x000000000425C000-memory.dmp

          memory/1740-161-0x0000000004020000-0x00000000040B4000-memory.dmp

          memory/1740-198-0x00000000044C0000-0x0000000004552000-memory.dmp

          memory/2260-74-0x00000000052A0000-0x00000000052C8000-memory.dmp

          memory/2528-42-0x0000000005D00000-0x00000000062A4000-memory.dmp

          memory/2528-37-0x0000000005350000-0x00000000053E4000-memory.dmp

          memory/2528-41-0x00000000055A0000-0x0000000005750000-memory.dmp

          memory/2528-33-0x0000000002F20000-0x0000000002F2C000-memory.dmp

          memory/2528-29-0x0000000005280000-0x00000000052AE000-memory.dmp