Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/09/2026, 00:13

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.3MB
  • Sample260910-ah9ecabp7t
  • SHA256 fbba1d98d3c9553a2404a22bb8e3bb02fd58d0a3360a5b76b9075bb41b4baa53
  • 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 17 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:4700
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\948a0682b613920d\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:2328
  • 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:3660
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9C03D41D08CC3F4C9F73D80654EAFA28 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2148
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6349.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240673796 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2112
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6780.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240674687 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3872
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI600A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240738312 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3280
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2308
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5B2DD27639AE65E72C00358FC7515CE5
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1960
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9F0A58734344E1F0402C96D4F63F173C E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3308
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3720
    • C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-inq7e1-relay.screenconnect.com&p=443&s=d96af890-e517-4bea-b464-df579651baa4&k=BgIAAACkAABSU0ExAAgAAAEAAQBRy285F%2f7Z9o%2b2MhYF9xVKyripY9HRvufAlnghsiPhu%2bkYC0fhtb7dYhYVfIbVZrTpoe5tSrGXGggV9wMDoqRPIVewo4jyzzIJhzbpEXBuwTb7%2fmzwn5qD9gHfvW%2bSkJUN%2bdQhsQWysTtoiT%2bAtGjvA%2fnPwF5XpNETNNUFiWbJns45rFRkIE1hjJfpzTjVYIejJQUaMEouloRLr7I%2fYtEq1HFmmIzGjZSz7BJFcHfF9U3Chg8e%2bUfHCbeGxy3VCuVvILw2peyaywuRLdMz8%2fkW%2bTZQtL19jipdJ4HinhsFe5xqn%2bWQOW8dw%2bXEjjaa3oOz2Gg9nP1h5zNSeHPAHlDA"
      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:3640
      • C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.WindowsClient.exe" "RunRole" "8b826ebd-7101-4b15-be69-9a5e66a1f566" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3744
      • C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.WindowsClient.exe" "RunRole" "8679060d-db50-43fa-ac44-eb9c91482c4f" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4768

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59a196.rbs

          • Path C:\Config.Msi\e59a196.rbs
          • Size 214KB
          • SHA256 f2c762fe2046f726b5cc24bacdc412eb67febda466f3840897cf4b1711978cbd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\app.config
          • Size 1KB
          • SHA256 b3369f06d13bca8a10e0870cabd470c48734cd10604ff8a77eb3de17a608f6c4
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (948a0682b613920d)\system.config
          • Size 972B
          • SHA256 4af5b05fec9b68783453c53e12c6b2a43253e833d9e384677002a1ccb3ee6f07
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 0855d371c54c7affadb6695fd10fc793efbe3e1e39129b62446557d789ad6631
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 ab9c93377e6e8a076ea20dd14e0462c9e3100581a459853964aac28c9a2920ce
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 02960c5b0c35f55bedc16dedd0dc775642bfc2942c3619bd7d7f2c386bc74b33
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 9e165d655686825bf2e8fd7dfd23181e3035e4af57e2874445938dcea27ee3e7
          • 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

          MSI6349.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6349.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6349.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6349.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6349.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6349.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6780.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6780.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\948a0682b613920d\ScreenConnect.ClientSetup.msi
          • Size 11.8MB
          • SHA256 18f0a3897dcddf82055e19dd1efe56dd8b68357e213dcd1af6bba408932d2cac
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA39A.tmp

          • Path C:\Windows\Installer\MSIA39A.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          4g13rr4f.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (948a0682b613920d)\4g13rr4f.newcfg
          • Size 883B
          • SHA256 11e227b1a44bca8d2e7d7fd0918e0ddc5e5ec103cdea51da33fa31632f6f6bec
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (948a0682b613920d)\user.config
          • Size 683B
          • SHA256 7e2f9774f905853bf2ffed558dcd36bf70abd545d3ba23b94ad8a4eb7dd16ba4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (948a0682b613920d)\user.config
          • Size 520B
          • SHA256 18cbfdc95ce743f2db82074e5a58f6919b568cdd62b828f940bf2e85fae1d1c2
          • MD5 SHA1 SHA512 TLSH

          memory/2112-39-0x0000000005240000-0x000000000526E000-memory.dmp

          memory/2112-47-0x0000000005320000-0x00000000053B6000-memory.dmp

          memory/2112-43-0x0000000005270000-0x000000000527C000-memory.dmp

          memory/2112-51-0x0000000005570000-0x0000000005720000-memory.dmp

          memory/3640-179-0x0000000004720000-0x0000000004770000-memory.dmp

          memory/3640-196-0x00000000049C0000-0x0000000004A2C000-memory.dmp

          memory/3640-199-0x0000000004770000-0x00000000047B1000-memory.dmp

          memory/3640-176-0x0000000004810000-0x00000000049C0000-memory.dmp

          memory/3640-197-0x0000000004A30000-0x0000000004AC2000-memory.dmp

          memory/3640-201-0x0000000004C10000-0x0000000004CE6000-memory.dmp

          memory/3640-166-0x0000000004490000-0x00000000044AA000-memory.dmp

          memory/3640-172-0x00000000045C0000-0x0000000004656000-memory.dmp

          memory/3744-228-0x000000001B1B0000-0x000000001B246000-memory.dmp

          memory/3744-231-0x0000000002420000-0x000000000243A000-memory.dmp

          memory/3744-229-0x000000001B400000-0x000000001B5B0000-memory.dmp

          memory/3744-226-0x0000000000200000-0x00000000002B0000-memory.dmp

          memory/3744-232-0x000000001C7F0000-0x000000001C976000-memory.dmp

          memory/3744-227-0x0000000002460000-0x00000000024CC000-memory.dmp

          memory/3872-83-0x0000000004860000-0x0000000004888000-memory.dmp

          memory/4700-5-0x00000000059C0000-0x00000000059E8000-memory.dmp

          memory/4700-2-0x00000000059B0000-0x00000000059C0000-memory.dmp

          memory/4700-1-0x0000000001610000-0x0000000001618000-memory.dmp

          memory/4700-3-0x0000000003390000-0x000000000339C000-memory.dmp

          memory/4700-4-0x0000000005920000-0x00000000059B6000-memory.dmp

          memory/4700-0-0x00000000059B0000-0x00000000059C0000-memory.dmp

          memory/4700-6-0x00000000059F0000-0x0000000005BA0000-memory.dmp

          memory/4700-7-0x0000000006150000-0x00000000066F4000-memory.dmp

          memory/4700-8-0x00000000059B0000-0x00000000059C0000-memory.dmp