Analysis

  • max time kernel
    149s
  • max time network
    154s
  • 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, 00:18

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260910-al25fasfqc
  • SHA256 853ad72568f305c07147a1511bf3c76665f582d20f1d83364875a3cce33e4441
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 8 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 9 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 2 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.

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 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:\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:4740
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\0af6a3abb4af7515\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:4708
  • 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:2376
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 80BD9670423F6CBCBAE081D1696C9B48 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:60
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDB96.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240704578 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1032
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDF21.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240705328 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2364
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID895.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240769203 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1996
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4924
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding FBC14443EB361F17CE8BE54A3EBDBB37
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3552
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 686D60F280567820F789ECE4F86C0E4D E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4340
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1724
    • C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-rae2qr-relay.screenconnect.com&p=443&s=41b07240-d147-4c78-ac8b-53779e738900&k=BgIAAACkAABSU0ExAAgAAAEAAQBt0Y6Af34A5QkDVtIMU9prpCoNfbfdRYtAClz7%2fzFhd%2fFtTrFxdAdsrEoRxvVTCh7C0P1jFRv3Fxlay7Q8Wem632epSXIf%2b1O8K0psif7VqwDx8WbxT7dDVCL6786gOZzoZht30TYCUbEEfgeeIXDVGSVANn9Bt3uXzlH2Lp4xJnSrNhx2H4d2HQ8%2bfkQjiPFdtICk8DZYCZvETlKo5uduFs%2flPyKWEejFTIsumBNuJx53EuChCikffWB0avLXnOHJgHbQn%2fz%2bdyDgmBJrjg0yPMBy1QmXOKMyC%2bHpGZtfyyZBoDs4MnCp60a7x45ZRfqsZrEteCPBDzoj3iZHQWK4"
      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:4744
      • C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsClient.exe" "RunRole" "e35de699-7f82-465c-ab47-911fa5ca948a" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:6016

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a180e.rbs

          • Path C:\Config.Msi\e5a180e.rbs
          • Size 214KB
          • SHA256 b034ccb9b14fffdd16d063f59cfa40927908363fba892100c03e990c60de337c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (0af6a3abb4af7515)\system.config
          • Size 960B
          • SHA256 3f452b843c6afc9e13ed22092f9a45049e150353ec335ddf187bc48691e2599e
          • 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 4e344c1624cb200a181b22bf1789588236e5129c2c724aa32343a9759b4c6d22
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 5f74c2ea367055790b804b65e368813ba52859453a01191306fa51dbe627ca68
          • 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

          MSIDB96.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB96.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB96.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB96.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB96.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDB96.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDF21.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDF21.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\0af6a3abb4af7515\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 aa2f2ed612d531cc51915e881b71cf5850b1c9f6258304f932ade3a4ec053571
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI19F3.tmp

          • Path C:\Windows\Installer\MSI19F3.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          hjaopwbx.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0af6a3abb4af7515)\hjaopwbx.newcfg
          • Size 884B
          • SHA256 c8bb3603ffb313c9c5ffec010da3de4646bf04ef9e518aa3b376b4b39cb925a4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0af6a3abb4af7515)\user.config
          • Size 520B
          • SHA256 05f061c3460be62259f336c9ea3ed851a168a7361285ca0745ed18fd35a7659a
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (0af6a3abb4af7515)\user.config
          • Size 683B
          • SHA256 2c8b3a04248f823bc744e0970e19ae100d435cc75f3b88e8caa6549823544dc4
          • MD5 SHA1 SHA512 TLSH

          memory/1032-43-0x00000000026B0000-0x00000000026BC000-memory.dmp

          memory/1032-39-0x00000000026D0000-0x00000000026FE000-memory.dmp

          memory/1032-51-0x0000000004D50000-0x0000000004F00000-memory.dmp

          memory/1032-47-0x0000000004B00000-0x0000000004B96000-memory.dmp

          memory/2364-83-0x00000000027A0000-0x00000000027C8000-memory.dmp

          memory/4740-5-0x0000000005760000-0x0000000005788000-memory.dmp

          memory/4740-1-0x00000000018A0000-0x00000000018A8000-memory.dmp

          memory/4740-0-0x00000000057B0000-0x00000000057C0000-memory.dmp

          memory/4740-2-0x00000000057B0000-0x00000000057C0000-memory.dmp

          memory/4740-3-0x00000000018D0000-0x00000000018DC000-memory.dmp

          memory/4740-8-0x00000000057B0000-0x00000000057C0000-memory.dmp

          memory/4740-7-0x0000000005FB0000-0x0000000006554000-memory.dmp

          memory/4740-6-0x0000000005850000-0x0000000005A00000-memory.dmp

          memory/4740-4-0x00000000057C0000-0x0000000005856000-memory.dmp

          memory/4744-173-0x00000000040F0000-0x0000000004186000-memory.dmp

          memory/4744-177-0x0000000004380000-0x0000000004530000-memory.dmp

          memory/4744-210-0x00000000042E0000-0x0000000004321000-memory.dmp

          memory/4744-204-0x00000000045A0000-0x000000000460C000-memory.dmp

          memory/4744-179-0x0000000004320000-0x0000000004370000-memory.dmp

          memory/4744-208-0x00000000046B0000-0x0000000004742000-memory.dmp

          memory/4744-167-0x0000000001A10000-0x0000000001A2A000-memory.dmp

          memory/4744-212-0x0000000004890000-0x0000000004966000-memory.dmp

          memory/6016-230-0x000000001B9C0000-0x000000001BA56000-memory.dmp

          memory/6016-228-0x0000000000A20000-0x0000000000AD0000-memory.dmp

          memory/6016-229-0x000000001B5B0000-0x000000001B61C000-memory.dmp

          memory/6016-231-0x000000001BC10000-0x000000001BDC0000-memory.dmp

          memory/6016-232-0x0000000002B40000-0x0000000002B5A000-memory.dmp

          memory/6016-233-0x000000001D000000-0x000000001D186000-memory.dmp

          memory/6016-234-0x0000000002B60000-0x0000000002BA1000-memory.dmp