Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/06/2026, 18:23

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.3MB
  • Sample260603-w1qwlset7l
  • SHA256 bb884d6d2b8bc27ca50bc6ec416354d556863b1fe4decf1db6234e3f00d97e81
  • 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 17 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).

  • 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.10.9641\e0e631074ac2d0f9\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:4944
  • 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:1836
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9BCC2DF3FA118116D6FD25E9B75B14DB C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:468
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI30CF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240660781 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1780
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI32A5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240661171 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1536
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3B22.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240663359 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5336
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5268
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F1408836F59D55FB8C6F2485CE0B4066
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3992
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DFD03A12B36CDD113D5363A74C07208E E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5464
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5344
    • C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-j4nr3t-relay.screenconnect.com&p=443&s=a1f2dbe3-3b80-4c9b-9dee-9d9b79acdbfd&k=BgIAAACkAABSU0ExAAgAAAEAAQBJldx8Suvg2GC3IOlyHHOiisPAs%2fZZK%2f2%2bQ80Nue3%2fEJykWrTVaxwqapJ4a7KUFkJdt67woVpYdZzmwht2bu0onPpSyOUDLJ3EFMoCCq6pMowxxboXPn6F3y3n1V%2fjTMjnrlKH4qypnKRs8u57yRGo%2fCaxh09L30t5ZaAS%2brqpSpSxjicl2eQTJs1GOB8QM3HO5HYXoFwSpZ9k%2bGc5sUqC2Jb6pHOi%2boRVj5mOMGi6deB8RZqwhEGXPYDOLHQdsVrX%2bPxyUofNRzC5H7F6JzsZGnQnJ89eZwBbzU42VB4fHpGZoO6xH5Af18xdRvc1mspU0sPyfokMwGylOO14YYXB&c=Nteractive%20Consulting&c=Nteractive%20Consulting%20-%20Staines&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5332
      • C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.WindowsClient.exe" "RunRole" "88b0d0d7-94d2-43c1-9fbe-d146eefed15f" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:880
      • C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.WindowsClient.exe" "RunRole" "d8f2d0ff-635a-443e-9a0f-e61a7c3371c1" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4232

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e586fae.rbs

          • Path C:\Config.Msi\e586fae.rbs
          • Size 214KB
          • SHA256 6a6a1f55567be1cc639abb74c154613c10ce02e718662175288034393aa4c38b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 636afe0e7bb6ae619f6a9de2e4b2ce600a1362c04b7f8cbb717433ab60d3f119
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 62faf54ab7e8d6598572d7edcf718f406ae5a0f2496eb7fc51a6ce0b80db5491
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 eff580f0ae20d8d126734a619a9484f47263efa99fefb2205ec3c0f0e28da525
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 f0d23cc83e0662952ebfd85128513f943b5b2a701db88fb259fe0d801067f7c1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 a9f77b1ecfcc516da56c74616affbb9e8e97787dcba4fc64934c5ad58af23efa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 cbefd78af23f9292c073e64169113854751b629d748e9e3b6c8cf6f12d0671c8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\app.config
          • Size 1KB
          • SHA256 21bc81fd178b14fa3b3ed5705be88f9f11115c71f511766484e07b7fe319c6bc
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e0e631074ac2d0f9)\system.config
          • Size 964B
          • SHA256 7c2ce878594dbd337e5bad94a97e9eab38b1d28d90fc9c360ac85c8fea2181e6
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 ce4f07eccea9200805c41e08486bcbcdb08fc880b44be51190bb4302112072ca
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 4b642558ead3bb575c3ccd601c655effbe506e5434a5afa0c3accab7b7ef1005
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 66352757d80d045b58d01d97f3330c202be3b2338c52c75696772c4be9ddebfc
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 bdd02e65b1106cef46f8b2dd7ee224f478a1d812fffe7fc1e880174db6c715cf
          • 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 76ced2c52d647683572ceac0687933e96e198b5a6f998457fa334763cc1ef978
          • MD5 SHA1 SHA512 TLSH

          MSI30CF.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30CF.tmp
          • Size 1.1MB
          • SHA256 a9a7a15f3cad7f91b5c6ae3f430b6d722a9be91a376c255db6e8b592a0efeda0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30CF.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30CF.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 a5b31bcc9d4883f65fd9ec416975096f16d26888f5ed7707f30d7eb96a0645d8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30CF.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 71d084ecaf944114defddc138ba758c608b9ee03f487a9cfbdb88def1d4c615a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI30CF.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 b94926becc42aef79a323de7cde99159fbb393164e103439d22cea986f423d88
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI32A5.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI32A5.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 ddc916359c82457f0cc8fe14c4f8336ee50439a2de574bf409506db3988cf841
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.10.9641\e0e631074ac2d0f9\ScreenConnect.ClientSetup.msi
          • Size 11.8MB
          • SHA256 2476cbfb3d3ebf306f62d0a9e148c90781a0ab85cd3ca5a89d9842af9b8f520d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7154.tmp

          • Path C:\Windows\Installer\MSI7154.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          0hytdgue.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e0e631074ac2d0f9)\0hytdgue.newcfg
          • Size 880B
          • SHA256 772d9075b3dd09be5245e03031c873a59625f7b5785b98695ec3b690cfb3bb4c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e0e631074ac2d0f9)\user.config
          • Size 520B
          • SHA256 06e85d8e9a5034851ac49d1161bf0e4be36905ea3998b86cc3b9782a257c5469
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e0e631074ac2d0f9)\user.config
          • Size 683B
          • SHA256 4e2250ea11384f80e39c050fbbb7855bd06cbdeaf7b6f424bb7e3bdee97cb8ce
          • MD5 SHA1 SHA512 TLSH

          memory/880-233-0x000000001E1E0000-0x000000001E368000-memory.dmp

          memory/880-230-0x000000001BF20000-0x000000001BFB4000-memory.dmp

          memory/880-229-0x000000001BB10000-0x000000001BB7C000-memory.dmp

          memory/880-231-0x000000001C170000-0x000000001C320000-memory.dmp

          memory/880-228-0x0000000000E20000-0x0000000000ECC000-memory.dmp

          memory/880-232-0x0000000001800000-0x000000000181A000-memory.dmp

          memory/1536-85-0x0000000005670000-0x0000000005698000-memory.dmp

          memory/1780-41-0x0000000004D80000-0x0000000004DAE000-memory.dmp

          memory/1780-45-0x0000000004DC0000-0x0000000004DCC000-memory.dmp

          memory/1780-49-0x0000000004EB0000-0x0000000004F44000-memory.dmp

          memory/1780-53-0x0000000005100000-0x00000000052B0000-memory.dmp

          memory/4232-235-0x00000000018B0000-0x00000000018F1000-memory.dmp

          memory/4980-5-0x00000000035A0000-0x00000000035C8000-memory.dmp

          memory/4980-7-0x00000000062F0000-0x0000000006896000-memory.dmp

          memory/4980-6-0x0000000005B90000-0x0000000005D40000-memory.dmp

          memory/4980-0-0x0000000005AF0000-0x0000000005B00000-memory.dmp

          memory/4980-4-0x0000000005B00000-0x0000000005B94000-memory.dmp

          memory/4980-8-0x0000000005AF0000-0x0000000005B00000-memory.dmp

          memory/4980-3-0x0000000003570000-0x000000000357C000-memory.dmp

          memory/4980-2-0x0000000005AF0000-0x0000000005B00000-memory.dmp

          memory/4980-1-0x0000000003550000-0x0000000003558000-memory.dmp

          memory/5332-177-0x0000000003A90000-0x0000000003C40000-memory.dmp

          memory/5332-173-0x0000000003840000-0x00000000038D4000-memory.dmp

          memory/5332-167-0x00000000012A0000-0x00000000012BA000-memory.dmp

          memory/5332-200-0x0000000003950000-0x0000000003991000-memory.dmp

          memory/5332-204-0x0000000003EA0000-0x0000000003F76000-memory.dmp

          memory/5332-198-0x0000000003CB0000-0x0000000003D42000-memory.dmp

          memory/5332-197-0x0000000003C40000-0x0000000003CAC000-memory.dmp

          memory/5332-180-0x00000000039A0000-0x00000000039F0000-memory.dmp