Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-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.

  • 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:2840
    • 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
      PID:3920
  • 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:1136
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 8307D5358580A4014CA62B30AF50CB3F C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4984
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI65D9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240674359 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2040
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6A9D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240675484 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:928
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7423.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240678234 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1224
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1940
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0B11097C449A6F89289A5024F386C42A
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3776
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7C70834C4F78E0836853D91AFAFB59F0 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3288
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4532
    • 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=d17ac906-5294-4c52-a8a5-4d654dd31423&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:1684
      • C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe" "RunRole" "f2b5d9b2-bc3e-47b8-bd11-46cac9368a09" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1204
      • C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (70f723b5b279f177)\ScreenConnect.WindowsClient.exe" "RunRole" "82c1ea71-2ecd-4591-a0d4-40f27aaf172d" "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:3364

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58ccd2.rbs

          • Path C:\Config.Msi\e58ccd2.rbs
          • Size 214KB
          • SHA256 df4d9c33e84671215e14ea7a942128ae862b057a086248acfb0689055369dca5
          • 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.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 6000c7976a4d542c79b4b892b56c4147ffd10410f7fad8a1339835a67dcc8ae7
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 4feb11829012e28222bd8e1ff6a2cb45a4417c2b534cdd4b23dac9a7c34d45ee
          • 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

          MSI65D9.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65D9.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65D9.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65D9.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65D9.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65D9.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6A9D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6A9D.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

          MSICFA0.tmp

          • Path C:\Windows\Installer\MSICFA0.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          user.config

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

          user.config

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

          xi0gfdoo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (70f723b5b279f177)\xi0gfdoo.newcfg
          • Size 882B
          • SHA256 15d1c781d8691cbe462cfa1070fc8f43002ebdbb9a91f471ff7a78a218e69ded
          • MD5 SHA1 SHA512 TLSH

          memory/928-83-0x0000000005320000-0x0000000005388000-memory.dmp

          memory/1204-225-0x0000000000960000-0x0000000000AF6000-memory.dmp

          memory/1204-229-0x000000001BED0000-0x000000001C0B0000-memory.dmp

          memory/1204-228-0x000000001BB90000-0x000000001BCEA000-memory.dmp

          memory/1204-231-0x0000000001470000-0x00000000014A0000-memory.dmp

          memory/1204-226-0x000000001B790000-0x000000001B82E000-memory.dmp

          memory/1204-230-0x000000001CD30000-0x000000001CEB6000-memory.dmp

          memory/1684-207-0x0000000003F70000-0x0000000003FB1000-memory.dmp

          memory/1684-170-0x0000000003D10000-0x0000000003E6A000-memory.dmp

          memory/1684-187-0x0000000003CB0000-0x0000000003D00000-memory.dmp

          memory/1684-174-0x0000000004050000-0x0000000004230000-memory.dmp

          memory/1684-164-0x0000000003B10000-0x0000000003B40000-memory.dmp

          memory/1684-204-0x0000000004230000-0x00000000042CE000-memory.dmp

          memory/1684-209-0x00000000044B0000-0x0000000004586000-memory.dmp

          memory/1684-205-0x00000000042D0000-0x0000000004362000-memory.dmp

          memory/2040-39-0x0000000004E20000-0x0000000004E4E000-memory.dmp

          memory/2040-43-0x0000000004E50000-0x0000000004E5C000-memory.dmp

          memory/2040-51-0x0000000005300000-0x00000000054E0000-memory.dmp

          memory/2040-47-0x0000000004FC0000-0x000000000511A000-memory.dmp

          memory/2840-2-0x0000000006310000-0x0000000006320000-memory.dmp

          memory/2840-1-0x00000000061E0000-0x00000000061E8000-memory.dmp

          memory/2840-6-0x0000000006310000-0x0000000006320000-memory.dmp

          memory/2840-7-0x00000000064F0000-0x00000000066D0000-memory.dmp

          memory/2840-8-0x0000000006C80000-0x0000000007224000-memory.dmp

          memory/2840-0-0x0000000006310000-0x0000000006320000-memory.dmp

          memory/2840-5-0x0000000006480000-0x00000000064E8000-memory.dmp

          memory/2840-3-0x0000000006200000-0x000000000620C000-memory.dmp

          memory/2840-4-0x0000000006320000-0x000000000647A000-memory.dmp

          memory/3364-232-0x000000001B500000-0x000000001B541000-memory.dmp