Analysis

  • max time kernel
    148s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 12:09

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261027-pbmpbsde32
  • SHA256 1477d7e67431e540ee38c5ac4e0fdf45849a1f131784b6fb383c02ac65e11dd2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 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.

  • 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 17 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).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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 SetWindowsHookEx 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1432
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\d3f4506b31c21ffe\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
      • Suspicious use of SetWindowsHookEx
      PID:5440
  • 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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4756
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 549FE0D47DBBD7DE1F59CF36082A26B6 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4296
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI87F3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240748890 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5748
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8B9D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240749500 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:4888
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI92C2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751421 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4824
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5272
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 693CF5E989E21C73836799E7EC2B5CA0
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3916
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 64ECBB8D6CEE379880828B7217F41116 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4152
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3336
    • C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-rjlvzk-relay.screenconnect.com&p=443&s=86a532a3-1af0-4cf6-af33-884bd875c522&k=BgIAAACkAABSU0ExAAgAAAEAAQCVfKTFSZEGB1DlMlnI1b%2b4la%2f2013fSsZU9sw69%2f9%2fmlk%2faau1%2btKbTS4iwpRZj%2bfZu4H%2bFWNI4ReGuzx6GADW3yfFixRcGZvHOrnfYY228lawJtrl0GV8MMGcBjSHCQJSTme%2fQZPQtgOmEPkBp7sE9kieQBLtKUQdtnn7pbRJ3jKOoRwkzo6a7Rdz99DPpjJPqhtmzdGHAAEq2UrNtp9L67IY53k1YvpKJ%2foKTjC4kfNQqJq35Qk7pQmuUcOKVnKW5TbLh0eOOoTfI6vTa9Cde5DUq97rpqePT6ZKe9Zu9r49q8fofLkcfgVQwfYMgU6fv%2fB3hi4m2gzcaZ7kn2nP&c=HOT&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
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2320
      • C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.WindowsClient.exe" "RunRole" "b92d4dee-ed0c-41aa-aaaf-c53f834fee3c" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:200
      • C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.WindowsClient.exe" "RunRole" "a13667b7-33b6-4abf-bcb0-9356db16e4f4" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5604

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59e0b3.rbs

          • Path C:\Config.Msi\e59e0b3.rbs
          • Size 214KB
          • SHA256 3f716a24a76083abe235cf56e27608ad5a141edbd2cb446e38d520c6e635449e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d3f4506b31c21ffe)\system.config
          • Size 966B
          • SHA256 6bc72ab065af6ad1dabea80bf343943ebb5cbeca8648bc4a48c26d03ff4d56cd
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 48f34d2ba0f20f10258d492b80299ec91f2e38eebd381a86ebbef40096900f95
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 a3ae477d9976f7e308c775fea2a8e89c0a7f45315e4e3a11cf255e0d1d0a2389
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 2f5f7b3fbc0d1f0e4eee9a5cdbd5123a25a10a97243379938b174b1e6e3800c2
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 18f723d7428916b01b9fcd20ed32dc3cddff86f05840f7402a465ef6f0968239
          • MD5 SHA1 SHA512 TLSH

          MSI87F3.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI87F3.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI87F3.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI87F3.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI87F3.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI87F3.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8B9D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8B9D.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\d3f4506b31c21ffe\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 e108a31bf66d21b8ce04ccea854e1316952bb48d2a0f91fb83e01580263b548b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIE6AE.tmp

          • Path C:\Windows\Installer\MSIE6AE.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          kckzpfpk.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d3f4506b31c21ffe)\kckzpfpk.newcfg
          • Size 683B
          • SHA256 caab6864b5a65380e14e124c4476a05db4061f65f6bdedfd49ce8b48c0da3263
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d3f4506b31c21ffe)\user.config
          • Size 520B
          • SHA256 cc6961d46bfe6191e465b0644275a0d131446af5b9bb331e6f2693ede5529849
          • MD5 SHA1 SHA512 TLSH

          v5tdhcfo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d3f4506b31c21ffe)\v5tdhcfo.newcfg
          • Size 884B
          • SHA256 d944404db98d87161d90d9731720c6593309573f624ce2deabeb731acf441192
          • MD5 SHA1 SHA512 TLSH

          memory/200-233-0x000000001C6B0000-0x000000001C838000-memory.dmp

          memory/200-234-0x00000000018E0000-0x0000000001921000-memory.dmp

          memory/200-230-0x000000001C120000-0x000000001C1B6000-memory.dmp

          memory/200-229-0x0000000003180000-0x00000000031EC000-memory.dmp

          memory/200-231-0x000000001C370000-0x000000001C520000-memory.dmp

          memory/200-232-0x00000000018C0000-0x00000000018DA000-memory.dmp

          memory/200-226-0x0000000000FA0000-0x0000000001050000-memory.dmp

          memory/1432-6-0x0000000005E20000-0x0000000005FD0000-memory.dmp

          memory/1432-12-0x0000000074400000-0x0000000074BBC000-memory.dmp

          memory/1432-7-0x0000000006590000-0x0000000006B4A000-memory.dmp

          memory/1432-0-0x0000000074412000-0x0000000074413000-memory.dmp

          memory/1432-9-0x0000000074400000-0x0000000074BBC000-memory.dmp

          memory/1432-10-0x0000000074400000-0x0000000074BBC000-memory.dmp

          memory/1432-4-0x0000000005D40000-0x0000000005D68000-memory.dmp

          memory/1432-1-0x00000000035E0000-0x00000000035E8000-memory.dmp

          memory/1432-5-0x0000000074400000-0x0000000074BBC000-memory.dmp

          memory/1432-3-0x0000000005D90000-0x0000000005E26000-memory.dmp

          memory/1432-2-0x0000000003600000-0x000000000360C000-memory.dmp

          memory/2320-171-0x0000000003D40000-0x0000000003EF0000-memory.dmp

          memory/2320-161-0x0000000001540000-0x000000000155A000-memory.dmp

          memory/2320-210-0x0000000004180000-0x0000000004256000-memory.dmp

          memory/2320-205-0x0000000003CA0000-0x0000000003D0C000-memory.dmp

          memory/2320-184-0x0000000003BE0000-0x0000000003C30000-memory.dmp

          memory/2320-206-0x0000000003F90000-0x0000000004022000-memory.dmp

          memory/2320-167-0x0000000003AA0000-0x0000000003B36000-memory.dmp

          memory/2320-208-0x0000000003BA0000-0x0000000003BE1000-memory.dmp

          memory/4756-235-0x00000215B2EB0000-0x00000215B3854000-memory.dmp

          memory/4888-80-0x0000000005290000-0x00000000052B8000-memory.dmp

          memory/5748-50-0x00000000064B0000-0x0000000006660000-memory.dmp

          memory/5748-46-0x0000000004110000-0x00000000041A6000-memory.dmp

          memory/5748-42-0x0000000004010000-0x000000000401C000-memory.dmp

          memory/5748-38-0x0000000003FD0000-0x0000000003FFE000-memory.dmp