Analysis

  • max time kernel
    151s
  • max time network
    134s
  • 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, 18:29

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample260930-w47crsfc47
  • SHA256 4b6b6afb538c4ccda6700861b8130c24297179c3d50876a9a7b5d1e0daaa0059
  • 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:4160
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\70f723b5b279f177\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:3220
  • 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:4136
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1044BC964D6DEE308E4C22700E506FD9 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3512
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6F5A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240742546 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4476
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7602.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240744078 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:5660
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7E7F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240746140 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3336
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2896
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8030E8EEC600862F32BE405E64DD78B1
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4508
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8CDD7F463DB7F69BDCC80C141556D2F1 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4380
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5892
    • C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-x082t3-relay.screenconnect.com&p=443&s=010cc80b-ef45-4e0d-92f4-7852f90dfbde&k=BgIAAACkAABSU0ExAAgAAAEAAQAhzMiS6AC9In4SeWoYyVudMMqdW1aEpHo%2b09IDVpTYGgrwfO14f4QWxc705HAUkZCdWwq%2fKe6np2Sw2L1iZq7t42dleRwzSkM7SQMkr0abfRWdmuDIVvXViaaiJzXBgiaDSGiIXpttdSadJLwAvxcJphSq7vLxklJ%2b8S5aAUOL0BxpEEHT9fAbsqzTw3r%2bwpxET5amKfMe0Tiasp7Y1QD7Ll4NmO2iwe%2f9tdiGX7YcxaEkFiSo3FHzTlP%2bI%2b8dt78Uw62xCnkgfI0X7vdN9FTXdTe2i0%2bMHnW%2bNdHEjtoUOGTe5qM%2b%2ba3VcHLA5vfz3VePd9K4W0SsULy13TLgotPK&c=nn&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:3440
      • C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe" "RunRole" "72bb8561-1f12-4b3f-ae46-a3df70a6108c" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5548
      • C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe" "RunRole" "ac13b1f6-5818-42bc-923d-b3fe0462930e" "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:252

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59d103.rbs

          • Path C:\Config.Msi\e59d103.rbs
          • Size 214KB
          • SHA256 28a56465819eb8a4f965c3ce206cd9c8dbbf9f2968a15c2c2f71b2bdaf5fc24f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\system.config
          • Size 966B
          • SHA256 7305e164b169cb1a4487b293c7f65277b9fa2f6711b2b623d9e9d38745ce526e
          • 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 cdb0a39cd065a082e50b6583158be66670e8cde1c8c0ce7f15f0cb2f5dd6d405
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 f260a1931d75a583b13275f4d7a3df04c1bed07b9eb80c25360d9c1000f2d8aa
          • MD5 SHA1 SHA512 TLSH

          MSI6F5A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F5A.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F5A.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F5A.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F5A.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F5A.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7602.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7602.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\70f723b5b279f177\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 e7b4c43a8d6868808160fb344cc7114318fbafb9e2c2502b7a18b34d8af169be
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSID72D.tmp

          • Path C:\Windows\Installer\MSID72D.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3mh5rnlj.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (70f723b5b279f177)\3mh5rnlj.newcfg
          • Size 882B
          • SHA256 718b97f77e6626e4f408a22a2ba79d5dd0f5c3cbe27f06d0d7376d48087ab4d0
          • MD5 SHA1 SHA512 TLSH

          bem24mno.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (70f723b5b279f177)\bem24mno.newcfg
          • Size 683B
          • SHA256 45ac8cc68b3d6d9eb4399447194ba1d43ba3f4119648d774371f94f61445b22e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (70f723b5b279f177)\user.config
          • Size 520B
          • SHA256 bfa47356f088ae13528e276625e6edd1ed2b32584eb27f27ff61e4202ab5ef33
          • MD5 SHA1 SHA512 TLSH

          memory/3440-207-0x00000000041B0000-0x0000000004242000-memory.dmp

          memory/3440-206-0x0000000004110000-0x00000000041AE000-memory.dmp

          memory/3440-211-0x00000000043A0000-0x0000000004476000-memory.dmp

          memory/3440-209-0x0000000003E50000-0x0000000003E91000-memory.dmp

          memory/3440-164-0x00000000039A0000-0x00000000039D0000-memory.dmp

          memory/3440-176-0x0000000003E00000-0x0000000003E50000-memory.dmp

          memory/3440-170-0x0000000003B50000-0x0000000003CAA000-memory.dmp

          memory/3440-174-0x0000000003E90000-0x0000000004070000-memory.dmp

          memory/4160-7-0x0000000007220000-0x00000000077DA000-memory.dmp

          memory/4160-4-0x0000000006910000-0x0000000006A6A000-memory.dmp

          memory/4160-8-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/4160-9-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/4160-6-0x0000000006A70000-0x0000000006C50000-memory.dmp

          memory/4160-11-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/4160-5-0x0000000006890000-0x00000000068F8000-memory.dmp

          memory/4160-1-0x00000000041C0000-0x00000000041C8000-memory.dmp

          memory/4160-3-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/4160-2-0x00000000041E0000-0x00000000041EC000-memory.dmp

          memory/4160-0-0x00000000744E2000-0x00000000744E3000-memory.dmp

          memory/4160-12-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/4476-49-0x0000000005330000-0x000000000548A000-memory.dmp

          memory/4476-45-0x0000000005180000-0x000000000518C000-memory.dmp

          memory/4476-53-0x0000000005670000-0x0000000005850000-memory.dmp

          memory/4476-41-0x0000000005140000-0x000000000516E000-memory.dmp

          memory/5548-228-0x0000000002790000-0x000000000282E000-memory.dmp

          memory/5548-229-0x000000001B560000-0x000000001B6BA000-memory.dmp

          memory/5548-231-0x000000001B8A0000-0x000000001BA80000-memory.dmp

          memory/5548-227-0x0000000000150000-0x00000000002E6000-memory.dmp

          memory/5548-233-0x00000000025C0000-0x00000000025F0000-memory.dmp

          memory/5548-232-0x000000001BA80000-0x000000001BC08000-memory.dmp

          memory/5548-234-0x0000000000C50000-0x0000000000C91000-memory.dmp

          memory/5660-83-0x0000000005280000-0x00000000052E8000-memory.dmp