Resubmissions

24/09/2026, 13:10

260924-qetgqaec828

24/09/2026, 12:20

260924-ph79lsvsdt8

Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    24/09/2026, 12:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample260924-ph79lsvsdt
  • SHA256 123d7b93c71770ba16d21a8ef07cf43957cb0530ffaf566995240a3f7fc4734c
  • 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.

  • 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:5396
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\65170cd9604e89cd\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:3952
  • 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:4396
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 12590DEEBB14AFF48EA3E6B05C752ADA C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5692
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB486.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240694625 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1204
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIBC28.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240696375 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3096
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC5AE.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240698859 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4188
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3280
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 872F1750F9DA7E1AC5431B4DC25313D5
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5172
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6780A4AEA7D3D2DB20EDC66ADD772515 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4308
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5816
    • C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-xn5yjv-relay.screenconnect.com&p=443&s=702d97cc-d305-404c-ace9-8497642e5a10&k=BgIAAACkAABSU0ExAAgAAAEAAQCJPay5UJ9b%2fZycHh%2fFWmgyQ9zCevvXNnOznJxkTNui4ONXl21uii2CPmvw%2fy%2fQ9cnz%2fuwWGQwQLEqDDraOU0uwAqucehbp7oV5KCytT4XALIZLcqy5qmBzQ1gCYnnQUsZvYuRs6NSVFdt51TuqK327yFZtqVH7V5NVpYlWdc40CzhwuDiMWNkjzQ%2bMWDrPRYqt%2b2UQsBF1abNQRPhHd5%2b35dxc3qFISgX4Kd1yRBI2O0N2E4280uqqJjCXDQ9kqLvn%2b3Ic7sJ3Qy1G0CQrop5sOeysvFXbvqKZsh3YkdTbm2GeeouKfWEMQTDlencABfHnNkuGNyY1VTnVn1oXgMWf&c=abk&c=&c=&c=&c=&c=&c=&c="
      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:4424
      • C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.WindowsClient.exe" "RunRole" "7a897ed7-bb1b-4a16-be3a-cbbbf996b376" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5436
      • C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.WindowsClient.exe" "RunRole" "22817fcb-0cd8-4b55-bd32-fa253cef434a" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5316

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e590297.rbs

          • Path C:\Config.Msi\e590297.rbs
          • Size 214KB
          • SHA256 baae7e62c06db3e12ca1405123bd504199d7863af432b67692c3ffa05d45ee7a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (65170cd9604e89cd)\system.config
          • Size 962B
          • SHA256 d72b202bf96cf72c5a553c51ff03a4f8be1631dba9a4769d1d3044e6ec289f67
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 59fa1ef8aed1aa69c62db70600d949197d7b70c4dfc3b0ecab93214c8c7b6820
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 55e3e3f3240168e7d8279d4940ac95800b73364bd2bdbd5ba93fda0016dbd9fe
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 f3f4b16e5028ddb20a3ef563937554d5f6c5fdc0f51199c9e54f4e121bcfd5a9
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 715fe865f4998851d43db3994069a454b15776937ddd6f94a5a685b52ab2f78e
          • 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

          MSIB486.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB486.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB486.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB486.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB486.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB486.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBC28.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBC28.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 390KB
          • SHA256 c469358d585fa9f1637a02d194e162e454d90b8dc7e4939f88b36e09b04a7a96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\65170cd9604e89cd\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 b7ece194ad1d9e1d8925f1feaaa51389595b11400ed6c393352db9b3f380fb2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI4BA.tmp

          • Path C:\Windows\Installer\MSI4BA.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          sfum0fzv.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (65170cd9604e89cd)\sfum0fzv.newcfg
          • Size 883B
          • SHA256 72a58995f8ab7ceed7e8408f5e6f58789296502abbeced244e34cba59a296d80
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (65170cd9604e89cd)\user.config
          • Size 683B
          • SHA256 14b2c2224b62ec165be94981035f6a35b1aa379786cbc04ac14c43d35777a3d1
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (65170cd9604e89cd)\user.config
          • Size 520B
          • SHA256 615a2274ce8feedecdddcfad2c5064b82b30df89cf7718f509be89525811177b
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 e6f63e76ba1a98d8e0ae675eba005a8fa75754593f0c8b7fa8016d38ec33af93
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {7a58a34d-0bc8-404c-a306-30e1f6668fd7}_OnDiskSnapshotProp

          • Path \??\Volume{8860bf69-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{7a58a34d-0bc8-404c-a306-30e1f6668fd7}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 5960a4a8ba3302ff42deb76239a94a68053b546bc0ac3233d0aa566af1b34fb5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1204-51-0x0000000004CE0000-0x0000000004EC0000-memory.dmp

          memory/1204-47-0x00000000049A0000-0x0000000004AFA000-memory.dmp

          memory/1204-43-0x00000000023E0000-0x00000000023EC000-memory.dmp

          memory/1204-39-0x00000000023B0000-0x00000000023DE000-memory.dmp

          memory/3096-83-0x00000000049D0000-0x0000000004A38000-memory.dmp

          memory/4424-209-0x00000000041A0000-0x00000000041E1000-memory.dmp

          memory/4424-172-0x0000000003F30000-0x000000000408A000-memory.dmp

          memory/4424-211-0x0000000004770000-0x0000000004846000-memory.dmp

          memory/4424-176-0x0000000004270000-0x0000000004450000-memory.dmp

          memory/4424-207-0x0000000004590000-0x0000000004622000-memory.dmp

          memory/4424-206-0x00000000044F0000-0x000000000458E000-memory.dmp

          memory/4424-189-0x00000000041E0000-0x0000000004230000-memory.dmp

          memory/4424-166-0x0000000003DA0000-0x0000000003DD0000-memory.dmp

          memory/5396-0-0x0000000006230000-0x0000000006240000-memory.dmp

          memory/5396-2-0x0000000006230000-0x0000000006240000-memory.dmp

          memory/5396-5-0x00000000063B0000-0x0000000006418000-memory.dmp

          memory/5396-7-0x0000000006430000-0x0000000006610000-memory.dmp

          memory/5396-6-0x0000000006230000-0x0000000006240000-memory.dmp

          memory/5396-3-0x0000000003B50000-0x0000000003B5C000-memory.dmp

          memory/5396-8-0x0000000006BD0000-0x0000000007174000-memory.dmp

          memory/5396-4-0x0000000006240000-0x000000000639A000-memory.dmp

          memory/5396-1-0x0000000003B30000-0x0000000003B38000-memory.dmp

          memory/5436-214-0x000000001B4B0000-0x000000001B54E000-memory.dmp

          memory/5436-217-0x000000001BA10000-0x000000001BB6A000-memory.dmp

          memory/5436-220-0x000000001BD50000-0x000000001BF30000-memory.dmp

          memory/5436-213-0x00000000007F0000-0x0000000000986000-memory.dmp

          memory/5436-229-0x000000001CBB0000-0x000000001CD36000-memory.dmp

          memory/5436-231-0x000000001B650000-0x000000001B680000-memory.dmp

          memory/5436-232-0x00000000029F0000-0x0000000002A31000-memory.dmp