Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/11/2026, 11:25

General

  • Target
    ScreenConnect.ClientSetup(5).msi
  • Size 9.8MB
  • Sample261110-njgbvaeh49
  • SHA256 b74b4ef66cad6ef1257a74457df01c7843d1de83f5bc2795b6fcc37ebfcdcaa1
  • 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.

  • 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
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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 7 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 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup(5).msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4356
  • 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:5420
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A20D2B5BC152ED64195D4A915DBC87BC C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4304
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID210.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240702125 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5184
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID916.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240703843 10 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:5772
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE0C8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240705750 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3104
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4188
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 11DB540603C15B9068546F02A0AF0CD9
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3756
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CB1AEC7E526EEA4CF0A8C00E29B32BC5 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1584
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4872
    • C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-w3nkzy-relay.screenconnect.com&p=443&s=39f7a69a-7269-46bd-916f-3be285608095&k=BgIAAACkAABSU0ExAAgAAAEAAQCR24wRhPXbYNiDkw9rQkhrhwCsUNI6xcsc7SF05Fh47jUSZkEg6giRspUztjZ8h3s%2f6GXfLQeAIuQQI6KcqOWmqQbaEVe%2bJ%2bIfckD3ZwFjFynCBiel3JJyQKhLp4meuqBTPKernmq0lqd8zRvv3N6IBPHYqqYxk94bvmHy%2fmFVb5hzv8xrkcBFLENb3UHBijsBDCBNd2lCU2I11K5w0Y5UDUdHKADKjpbI9ws4ycn1yeEROFmv2hAMxcQnXM9%2fG82QmX7RvBZnzWr3WWB%2bsod7UiFMOWxuCqPlM3H8YMTLP%2fGPQpHNBAS%2bDfKuKKnQecEo76JFgmUDwhqLBCQll5%2fA"
      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:920
      • C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.WindowsClient.exe" "RunRole" "92031f62-6a20-4046-a7dc-8b4e228f7fd8" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5740
      • C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.WindowsClient.exe" "RunRole" "c4dd9cb8-cc59-41b2-83fa-e37aea3d0c41" "System"
        2⤵
        • Drops file in System32 directory
        • 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:5552

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e592458.rbs

          • Path C:\Config.Msi\e592458.rbs
          • Size 214KB
          • SHA256 bb5f1685b0d24dd7accd2611cbf9b19a93a3ea9a96c2148e18570802f790f5f9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\Client.en-US.resources
          • Size 65KB
          • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.Client.dll
          • Size 413KB
          • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.Core.dll
          • Size 583KB
          • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.WindowsClient.exe
          • Size 689KB
          • SHA256 24671116eab5a97c5d15c4d7b434adff9ad2119db9b487490f4b251f28167069
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (00cb1adc3c5922a5)\system.config
          • Size 962B
          • SHA256 21fe87c84589408c95b43e3cc9dc6320a0390fd537e2f2be539a279e11e46f44
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 05c8e3c19b5c593e32dbb4f0b04cc947b3901cc9160ce1068dedcf7279682431
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 d49b2f90d9c5e4f1dce4722f1254f05246ca7f0ca2c021cf5eb353bc427a33b3
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 aa25d52aea0d259d13305a9917049ab82926aeaaa7bf317483ff40ff6ab71e4a
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 cdcb34ed7fad0dbbd5db3a121fed18d3bc535a363d70763d09b12924551fa19b
          • 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

          MSID210.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSID210.tmp
          • Size 1.1MB
          • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID210.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID210.tmp-\ScreenConnect.Core.dll
          • Size 573KB
          • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID210.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID210.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSID916.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID916.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI262D.tmp

          • Path C:\Windows\Installer\MSI262D.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e592459.msi

          • Path C:\Windows\Installer\e592459.msi
          • Size 9.8MB
          • SHA256 b74b4ef66cad6ef1257a74457df01c7843d1de83f5bc2795b6fcc37ebfcdcaa1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          13uhh0in.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (00cb1adc3c5922a5)\13uhh0in.newcfg
          • Size 683B
          • SHA256 919d99917229b8626a28889d6bbbe67536dd5024ecde6fa00efe30f0e9f1c5df
          • MD5 SHA1 SHA512 TLSH

          5en2jibi.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (00cb1adc3c5922a5)\5en2jibi.newcfg
          • Size 885B
          • SHA256 82f6ea744d34ec2144bd234f64a30383a42b3c9bc22a385a76d41c67b3c37d6e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (00cb1adc3c5922a5)\user.config
          • Size 520B
          • SHA256 e4747800bd6713767cdcc755c674c01cefaf7c5bb84fa2c4b7e30bea2b395160
          • MD5 SHA1 SHA512 TLSH

          memory/920-165-0x0000000003F90000-0x0000000004140000-memory.dmp

          memory/920-204-0x0000000004390000-0x0000000004466000-memory.dmp

          memory/920-161-0x0000000003D40000-0x0000000003DD6000-memory.dmp

          memory/920-199-0x0000000004140000-0x00000000041AC000-memory.dmp

          memory/920-155-0x0000000001550000-0x000000000156A000-memory.dmp

          memory/920-200-0x00000000041B0000-0x0000000004242000-memory.dmp

          memory/920-178-0x0000000003E80000-0x0000000003ED0000-memory.dmp

          memory/920-202-0x0000000003ED0000-0x0000000003F11000-memory.dmp

          memory/5184-42-0x0000000005D30000-0x00000000062D4000-memory.dmp

          memory/5184-41-0x00000000055D0000-0x0000000005780000-memory.dmp

          memory/5184-37-0x0000000005380000-0x0000000005416000-memory.dmp

          memory/5184-33-0x0000000002F80000-0x0000000002F8C000-memory.dmp

          memory/5184-29-0x0000000002F40000-0x0000000002F6E000-memory.dmp

          memory/5740-209-0x0000000000350000-0x0000000000400000-memory.dmp

          memory/5740-210-0x000000001AF20000-0x000000001AF8C000-memory.dmp

          memory/5740-226-0x000000001B610000-0x000000001B7C0000-memory.dmp

          memory/5740-225-0x000000001B3C0000-0x000000001B456000-memory.dmp

          memory/5740-227-0x0000000000BE0000-0x0000000000BFA000-memory.dmp

          memory/5740-228-0x000000001B950000-0x000000001BAD6000-memory.dmp

          memory/5772-74-0x0000000003310000-0x0000000003338000-memory.dmp