Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/11/2026, 18:13

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261107-wtwtaafe89
  • SHA256 dead27d8d5c103cd1166475f9713763bf9ad5cddb76ffc2a17f0211e8be5e128
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • 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 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3352
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\cff3a36d8b6795c0\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:4764
  • 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:4704
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 6D7972F90BA5090CCDA70DBAB127CF7F C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI236C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723015 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4724
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI264C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723546 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:760
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2BEA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240725015 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1048
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 954676A25D16D3D7B441507CB857F32A
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5040
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5FBB06DCC406A80BCE997D8C5E3E3A19 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:228
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1216
    • C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-jrdbbb-relay.screenconnect.com&p=443&s=0cc9c476-46a3-4010-b5f9-ecb935ccf1f8&k=BgIAAACkAABSU0ExAAgAAAEAAQDJx1xABZD3J5B%2bH7HD0OTk%2fhMjBs6wxc9SyZQYANr%2bCcgEtHgj%2fYwc8HUtszemolNVjk3GbKayJoEFLMXGQIZXIWM%2bQVHeNRIzc1xTf46RJL8W%2fjZyfYzIAutfKMiLeZQc9o5nfVFG1tH6f12QW4xnkRiXSlrvR4iFUBEOoQCwZBPVVe83L2zEJH2VvJt%2bCGcD2MkB2LlbLUQu3LEPYMEA4gfFdo6nZ2Vx9S2YBLprIqzCsgtNHEZ0BwRFPZmn4kg327PFLYJE58GKbD7HjJovTPkNz5cHPiZSwkuA9Pf9sKe50gNly3lO6QQwocvDVTqPGWB5IBduvpGoZNtRJHbC"
      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:396
      • C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe" "RunRole" "11e2500e-4e19-4c1b-8525-4fc59dacaa07" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2448
      • C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsClient.exe" "RunRole" "1886abc5-e3dd-40f9-aeda-16ba03ef715c" "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:1100

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5970e2.rbs

          • Path C:\Config.Msi\e5970e2.rbs
          • Size 214KB
          • SHA256 ad235ab37a462930ed669fa9f73e40a72f91920c0443c129d5274044409732bd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\Client.en-US.resources
          • Size 65KB
          • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.Client.dll
          • Size 413KB
          • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.Core.dll
          • Size 583KB
          • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (cff3a36d8b6795c0)\system.config
          • Size 958B
          • SHA256 2058f7c3a82ed99cbe972ad30d7085109c1f8cad7f5ac68cb920c962c8af5806
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 4fbe8fb4abdeece71c8d3de4f28b20e2e0e431f48774da4f9e5de0e7e70d87d3
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 f62478c8ecdde035bde8c07a884633f50cd6e21da71e8f6fbfc7e642f61a182e
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 6881d9ac3f72b20b700ee22d4d83d97f8a22f4099c9ff6fbd8d89cc9ab1e62df
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 d37d5e0a036eace94fb6e1c3481831f646f4c6285fc175340cb2db65539d58da
          • 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

          MSI236C.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI236C.tmp
          • Size 1.1MB
          • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI236C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI236C.tmp-\ScreenConnect.Core.dll
          • Size 573KB
          • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI236C.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI236C.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI264C.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI264C.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\cff3a36d8b6795c0\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 084e5e6ae1f0066addcc7491ab0908447ae5d2fd9064f3fb2121b65c54aeb010
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI72C6.tmp

          • Path C:\Windows\Installer\MSI72C6.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          0v2ms4iq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cff3a36d8b6795c0)\0v2ms4iq.newcfg
          • Size 683B
          • SHA256 0fc9f242b1329811e8cd29ce07561df511c6216b33743d71725d86a2733fa8fe
          • MD5 SHA1 SHA512 TLSH

          owufb2ti.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cff3a36d8b6795c0)\owufb2ti.newcfg
          • Size 882B
          • SHA256 707f0680faab9df6bf485758ec2cee1c04d5a89d5d340db2b8862cea41caf619
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (cff3a36d8b6795c0)\user.config
          • Size 520B
          • SHA256 97a34169b9e32c60c944e9bb424c02794e30e04bdd2b1d1b75fe176f26fdb9fd
          • MD5 SHA1 SHA512 TLSH

          memory/396-208-0x00000000042A0000-0x000000000430C000-memory.dmp

          memory/396-209-0x00000000043B0000-0x0000000004442000-memory.dmp

          memory/396-164-0x0000000003D90000-0x0000000003DAA000-memory.dmp

          memory/396-187-0x0000000004250000-0x00000000042A0000-memory.dmp

          memory/396-170-0x0000000003E50000-0x0000000003EE6000-memory.dmp

          memory/396-213-0x0000000004590000-0x0000000004666000-memory.dmp

          memory/396-174-0x00000000040A0000-0x0000000004250000-memory.dmp

          memory/396-211-0x0000000004050000-0x0000000004091000-memory.dmp

          memory/760-83-0x00000000055D0000-0x00000000055F8000-memory.dmp

          memory/2448-233-0x00000000011F0000-0x000000000120A000-memory.dmp

          memory/2448-217-0x0000000000980000-0x0000000000A30000-memory.dmp

          memory/2448-218-0x000000001B680000-0x000000001B6EC000-memory.dmp

          memory/2448-219-0x000000001BA90000-0x000000001BB26000-memory.dmp

          memory/2448-220-0x000000001BCE0000-0x000000001BE90000-memory.dmp

          memory/2448-236-0x000000001D0D0000-0x000000001D256000-memory.dmp

          memory/3352-2-0x00000000058E0000-0x00000000058F0000-memory.dmp

          memory/3352-3-0x00000000030C0000-0x00000000030CC000-memory.dmp

          memory/3352-4-0x0000000005790000-0x0000000005826000-memory.dmp

          memory/3352-5-0x0000000005830000-0x0000000005858000-memory.dmp

          memory/3352-6-0x00000000058F0000-0x0000000005AA0000-memory.dmp

          memory/3352-1-0x00000000030A0000-0x00000000030A8000-memory.dmp

          memory/3352-7-0x0000000006050000-0x00000000065F4000-memory.dmp

          memory/3352-8-0x00000000058E0000-0x00000000058F0000-memory.dmp

          memory/3352-0-0x00000000058E0000-0x00000000058F0000-memory.dmp

          memory/4724-39-0x0000000005030000-0x000000000505E000-memory.dmp

          memory/4724-43-0x0000000005020000-0x000000000502C000-memory.dmp

          memory/4724-47-0x0000000005100000-0x0000000005196000-memory.dmp

          memory/4724-51-0x0000000005350000-0x0000000005500000-memory.dmp