Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 12:23

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260930-pkg57svwey
  • SHA256 4fd154b157eddba5cabbcd5883c72da50ffd6117951a61327ba6f95497b1ee0d
  • 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 47 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:4980
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.5.9742\1c1c580a6b6eec46\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:5412
  • 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:4992
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 06013A58C23C73F2922B3E3898BFAB1D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5992
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240731437 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1080
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI479F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732109 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:1984
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4E18.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733765 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5696
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1868
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0F38907582B9E208F3B632D271BE10B7
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4284
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 971CCF9785CF187DAB7F3CB22F3926FC E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3016
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5572
    • C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-uamqxa-relay.screenconnect.com&p=443&s=583f8d90-6c26-4b8e-b536-3d7101e2fbc4&k=BgIAAACkAABSU0ExAAgAAAEAAQDV6gSUcD9h9tr7Gd1s89GULIWP8YQ%2f8dOIR4oAKz3%2f7kBlsAaDP%2bsjnQLdX0T1BfeWbFOBYtamwJZaF996VMA1PKCt27DKg0%2fkj10skOA%2f8ZZbqGhubIWFS9hLgOJas2QofO0g0TtPhilXtQeHC9cXJZ%2fAV83hp7IvFPO2QP2rwkfkL%2fQthTPu%2b2C6HnKVzp39Ok9ICslCFgJRS%2bR7ClBwxDO97H2j7dn8HjfltbgWvoFaU37lxWLYwPP%2fy6qY%2b0OQf6z61K5jWppCkBhDd0tOSPDrTEGEm4WHlwXpYFuWpyOCC%2fN31dW47DVIEGak9kShQxuNM15XgvNUyUoGwpPB&c=far&c=04&c=04&c=05&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:1768
      • C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe" "RunRole" "82d15a1d-8578-4b74-a88f-f5a46ec97dc7" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3880
      • C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe" "RunRole" "7d2ef0c8-ead1-41cd-a615-000dac7a3a6e" "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:4800

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e599b3d.rbs

          • Path C:\Config.Msi\e599b3d.rbs
          • Size 214KB
          • SHA256 f15158cdf31819346e339933187a8f3d0c04b933f7069edd4b6fd550301cea7b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (1c1c580a6b6eec46)\system.config
          • Size 968B
          • SHA256 c779951929eccc8de878f61e374294992ba0b57eef312c3880c60ec851251394
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 e8490aa6062cca5accce1de35d837fd3e812b203c932a7855b385ad9a1051d69
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 abfbfbc723ff25914997f9ad5b2cef01b259573d93648869322de8a3008b00bc
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 245c8a68985298f5dc2e5828b1b2e56fd2c7e718851051849e9e1af57fa74414
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 0542d89983a0d1e5ac63c37b844aec3ea2e000ec0ef02a8e79cdb62e57211f97
          • MD5 SHA1 SHA512 TLSH

          MSI44A0.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI479F.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI479F.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\1c1c580a6b6eec46\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 324152b3efa8021ef6afd8a5de951ecd63ff893cc994609c41eaf47de52847df
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI9FC2.tmp

          • Path C:\Windows\Installer\MSI9FC2.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          l4gup1d4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c1c580a6b6eec46)\l4gup1d4.newcfg
          • Size 881B
          • SHA256 4661ce38a98383d397db45fdbb1b5c636ed4e12c33d6d8db76ddfb9daf7ea702
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c1c580a6b6eec46)\user.config
          • Size 683B
          • SHA256 8a2d576b536c39582a5cf13d9eeb24dd04304b232a4fcc1f4b110da064e8aae6
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c1c580a6b6eec46)\user.config
          • Size 520B
          • SHA256 157a0bb5d0102532d0874207bd1c233b03d7a152ce3b972dc01c2b66eba4a13e
          • MD5 SHA1 SHA512 TLSH

          memory/1080-53-0x0000000006380000-0x0000000006530000-memory.dmp

          memory/1080-49-0x0000000006130000-0x00000000061C6000-memory.dmp

          memory/1080-45-0x0000000004010000-0x000000000401C000-memory.dmp

          memory/1080-41-0x0000000003FE0000-0x000000000400E000-memory.dmp

          memory/1768-174-0x0000000004070000-0x0000000004220000-memory.dmp

          memory/1768-204-0x00000000042E0000-0x000000000434C000-memory.dmp

          memory/1768-170-0x0000000003E00000-0x0000000003E96000-memory.dmp

          memory/1768-205-0x00000000043F0000-0x0000000004482000-memory.dmp

          memory/1768-164-0x0000000003D40000-0x0000000003D5A000-memory.dmp

          memory/1768-209-0x00000000045E0000-0x00000000046B6000-memory.dmp

          memory/1768-187-0x0000000004220000-0x0000000004270000-memory.dmp

          memory/1768-207-0x0000000004030000-0x0000000004071000-memory.dmp

          memory/1984-83-0x0000000005380000-0x00000000053A8000-memory.dmp

          memory/3880-227-0x000000001B830000-0x000000001B8C6000-memory.dmp

          memory/3880-226-0x0000000002B90000-0x0000000002BFC000-memory.dmp

          memory/3880-232-0x0000000002C00000-0x0000000002C41000-memory.dmp

          memory/3880-231-0x000000001BDC0000-0x000000001BF48000-memory.dmp

          memory/3880-230-0x00000000028D0000-0x00000000028EA000-memory.dmp

          memory/3880-225-0x0000000000700000-0x00000000007B0000-memory.dmp

          memory/3880-228-0x000000001BA80000-0x000000001BC30000-memory.dmp

          memory/4800-233-0x0000000002AD0000-0x0000000002B11000-memory.dmp

          memory/4980-2-0x0000000003BE0000-0x0000000003BEC000-memory.dmp

          memory/4980-9-0x00000000745A0000-0x0000000074D5C000-memory.dmp

          memory/4980-1-0x0000000002370000-0x0000000002378000-memory.dmp

          memory/4980-8-0x00000000745A0000-0x0000000074D5C000-memory.dmp

          memory/4980-3-0x0000000006240000-0x00000000062D6000-memory.dmp

          memory/4980-7-0x0000000006A40000-0x0000000006FFA000-memory.dmp

          memory/4980-12-0x00000000745A0000-0x0000000074D5C000-memory.dmp

          memory/4980-4-0x00000000061D0000-0x00000000061F8000-memory.dmp

          memory/4980-0-0x00000000745B2000-0x00000000745B3000-memory.dmp

          memory/4980-6-0x00000000745A0000-0x0000000074D5C000-memory.dmp

          memory/4980-5-0x00000000062D0000-0x0000000006480000-memory.dmp

          memory/4980-11-0x00000000745A0000-0x0000000074D5C000-memory.dmp