Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/11/2026, 18:16

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261104-wwrmcaev9r
  • SHA256 29fce4b826ecb97c8adf0b4158e4922d30159ab27a34e9df717a0478bbd8652a
  • 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:3124
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\a7779e746337033a\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:6084
  • 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:5708
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 7DBECC05E24CEB82600F76CFCEBDB73D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3428
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEA1D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240708265 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2720
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEEA2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240709281 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:4252
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF4BD.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240710859 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2160
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5168
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DE9E5D608A879D1B5879006F7D72F9F2
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3104
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AB916C78506607CE862DB95F4CF68AFC E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3012
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5720
    • C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-lkujyy-relay.screenconnect.com&p=443&s=16924b16-9c3a-4a37-a8f7-f96d02bad56b&k=BgIAAACkAABSU0ExAAgAAAEAAQDR8LiHF%2bA3EAYXr9EVlbY7PPqg2lIXrTKo51QhRV6wrgj%2f2g9YsjIBeYE1ny6hQPN2RZNZeNRU5u6s2Sg89VNem%2b1YBotZaDVULHgf0t2Ghhfl1KJon%2fsjmnxYTGKbq%2fNBkfQdxRbhtbJ8IathI4cR7cqKk3kNrO38PApyLZx%2bZqoGrB9yWfmY36igNTQ5HTtl1939RFACHyaGjWHaRZE%2fvkaBIRZKdxo2yNk1u%2fXhwITajDXWl56zT2rifZuw8GblBeD025jCozKMMs8%2bVpvBH3rv%2bzbGrheGjv9ZAuFCJkQxx48x42TCcuvsUElB13G4YJ0NMYnbMF0UOJP2k%2bm8&c=fron&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:1808
      • C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe" "RunRole" "b8aea2fd-2cfc-44c8-a891-72f344fd8d4a" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4964
      • C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsClient.exe" "RunRole" "5f1027a7-d775-4e2b-b317-e6b36a9fe8e7" "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:1816

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5937d0.rbs

          • Path C:\Config.Msi\e5937d0.rbs
          • Size 214KB
          • SHA256 0148a4d4a8413abedd8835af2879df2f22020ad922c31a94d815f58c54942bc0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.Client.dll
          • Size 413KB
          • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.Core.dll
          • Size 583KB
          • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a7779e746337033a)\system.config
          • Size 966B
          • SHA256 dd0a8044a86258198e066eb9857ecc4432a544ac95edee9385e6c61d3d906372
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 35e89b0a0eaa36114bdafc0f6ca557027eec7ae457181370027a30e64d702fd8
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 c12ab73cbb66aa2841e800dfc79d42feeb0af7b03c93483a3c49c17ce70f0fb2
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 b857938d35fecf004a84878dd25adc5956975a1d4785b399b71147538d23cc83
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 6a41430c10f387a45cf5fb5ac42fced7f9d897950fc19b804e6b488bc14641c9
          • 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

          MSIEA1D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEA1D.tmp
          • Size 1.1MB
          • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEA1D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEA1D.tmp-\ScreenConnect.Core.dll
          • Size 573KB
          • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEA1D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEA1D.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEEA2.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEEA2.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\a7779e746337033a\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 6e3b429edfaba1ee5b121a0f216ae54904cec30d64a9167afca94ea7084899f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI39B5.tmp

          • Path C:\Windows\Installer\MSI39B5.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          fthn201f.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a7779e746337033a)\fthn201f.newcfg
          • Size 683B
          • SHA256 41944eb0e2682f8ad01a534e2dac72640ee27b52c542edf450e46bff4195d392
          • MD5 SHA1 SHA512 TLSH

          m35cglbd.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a7779e746337033a)\m35cglbd.newcfg
          • Size 881B
          • SHA256 c43d5f4627e6fd8a2053843e4c202c6681d607864d55c5fddc25aff84382d987
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a7779e746337033a)\user.config
          • Size 520B
          • SHA256 2747fc490860f64c55a0c05293e6a9c1a659356a66e6b7900a2bf558c94dc545
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 d5142b2c0742f19bfb087406d56b138dc2742d9f3d1224c5b61d1e0b88998084
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {2cd4fa9d-1f86-475e-8fee-369de560af78}_OnDiskSnapshotProp

          • Path \??\Volume{7d83d395-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{2cd4fa9d-1f86-475e-8fee-369de560af78}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 16c7db2bfffca59ec3e8c1c72899aab9a1c9ff5cfac95d27d3294585780a294c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1808-215-0x0000000004970000-0x0000000004A46000-memory.dmp

          memory/1808-166-0x00000000041C0000-0x00000000041DA000-memory.dmp

          memory/1808-213-0x0000000004430000-0x0000000004471000-memory.dmp

          memory/1808-172-0x0000000004280000-0x0000000004316000-memory.dmp

          memory/1808-176-0x0000000004540000-0x00000000046F0000-memory.dmp

          memory/1808-211-0x0000000004790000-0x0000000004822000-memory.dmp

          memory/1808-210-0x00000000044A0000-0x000000000450C000-memory.dmp

          memory/1808-189-0x00000000043E0000-0x0000000004430000-memory.dmp

          memory/2720-51-0x00000000059B0000-0x0000000005B60000-memory.dmp

          memory/2720-47-0x0000000005760000-0x00000000057F6000-memory.dmp

          memory/2720-43-0x0000000003330000-0x000000000333C000-memory.dmp

          memory/2720-39-0x0000000005690000-0x00000000056BE000-memory.dmp

          memory/3124-2-0x0000000005B60000-0x0000000005B70000-memory.dmp

          memory/3124-6-0x0000000005C40000-0x0000000005DF0000-memory.dmp

          memory/3124-0-0x0000000005B60000-0x0000000005B70000-memory.dmp

          memory/3124-7-0x00000000063B0000-0x0000000006954000-memory.dmp

          memory/3124-8-0x0000000005B60000-0x0000000005B70000-memory.dmp

          memory/3124-3-0x0000000003640000-0x000000000364C000-memory.dmp

          memory/3124-4-0x0000000005B70000-0x0000000005C06000-memory.dmp

          memory/3124-5-0x0000000005C10000-0x0000000005C38000-memory.dmp

          memory/3124-1-0x0000000001D30000-0x0000000001D38000-memory.dmp

          memory/4252-83-0x0000000004740000-0x0000000004768000-memory.dmp

          memory/4964-229-0x0000000000860000-0x0000000000910000-memory.dmp

          memory/4964-230-0x0000000002A30000-0x0000000002A9C000-memory.dmp

          memory/4964-233-0x000000001B830000-0x000000001B8C6000-memory.dmp

          memory/4964-234-0x000000001BA80000-0x000000001BC30000-memory.dmp

          memory/4964-235-0x0000000002980000-0x000000000299A000-memory.dmp

          memory/4964-236-0x000000001CE70000-0x000000001CFF6000-memory.dmp