Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    06/07/2026, 12:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260706-pgalysay8j
  • SHA256 f2b90989ef8beab4c627ecdc4182ccea0c8b80db2f4b1683dda5c68ad4f41388
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 8 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 12 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).

  • 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SendNotifyMessage 6 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:4952
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\fe008c0464a300b2\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:4984
  • 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:1080
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E81EC7CB18AB9AAF85910806E512A7F5 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2372
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240731546 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4860
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4A00.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732734 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2916
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4401.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240796687 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1176
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3820
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding ABC5C5A67933E83E795EA598ABB900CA
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2392
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DAAAB928A245EB0FA5BFC1B6581D78A8 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2124
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1976
    • C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-yepasb-relay.screenconnect.com&p=443&s=76872ec7-6cc6-42c2-b0b4-c0f0857df80d&k=BgIAAACkAABSU0ExAAgAAAEAAQC1%2bBSeI9h%2b5ALQP5CwiB0BCChr%2bkndn0vYJANrgJJ1UZ4TVQLI0llFsa5ZDtAkyKGC6d451HWLnI8TMPWy40XqH%2bQTaxkBdx83FJv2AwXHPh6EiJ48gef7hprUSHsyUyTGd2eGZI8h41atZonW4lUh1KHzUk96GJZtr13zsAtnk3qaEWSqik6IGeL4EuIhrUsNTMPlqT1L%2bP11FAIFkj%2fxJXgR%2fzQCV75oJQe6hK2yhmpg9H1LQR7cJkagmz9rhd0Jbfj49dcsdKLLksN81dgC%2bnzb7RALZUaSrAIO%2bx0Kx00r19GEe0Ik7JLyCkzYj8550is9hPnbI5gjSnjoh2Hu&t=6SIX"
      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:3832
      • C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe" "RunRole" "5e37a5b6-5b80-46a1-8426-97522de7c8bd" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4304
      • C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsClient.exe" "RunRole" "0611e7ed-8aca-4303-91ab-740618061e71" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1568

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a8446.rbs

          • Path C:\Config.Msi\e5a8446.rbs
          • Size 214KB
          • SHA256 d53b12c02a75505beffe7a4aada491fa78e382d30f04ee01e5f352755605edb4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (fe008c0464a300b2)\system.config
          • Size 962B
          • SHA256 f5402616fd5e2d5dd03e9244a4f9bdc5388153ae5878bfb920ed4647cc470f8f
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 1848555b5d074c2596f1d4e553a025b544a5eb1620195e84512be6fd5cbac65c
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 6c763e720f5cb77044eeabb5c55a774dd33b41361a7094a7242576c775c39b8b
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 c3a7b4d6501faec6edcde4d33a9ab00babcff4b35fdd037563a0523b872f4e57
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 77eea201ffd48e9e99123bee126531c4a19ce2d3e3dbfe9c5c3c910c195039fe
          • 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

          MSI44A0.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI44A0.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A00.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4A00.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\fe008c0464a300b2\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 258e71b6d80c6fc3924ec055875f7bd4ded76267cb05c5ad57bc3d64c965303e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI85EB.tmp

          • Path C:\Windows\Installer\MSI85EB.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          0bsdktdh.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fe008c0464a300b2)\0bsdktdh.newcfg
          • Size 883B
          • SHA256 9fe8ce750c7abb71e2049368705c55176b130557b4473ecd33f3e4ef235b1794
          • MD5 SHA1 SHA512 TLSH

          1jttkfgc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fe008c0464a300b2)\1jttkfgc.newcfg
          • Size 683B
          • SHA256 366a2fa36b925d7c07f07dc9f3b5cad1abce4f3f45f850c49a2d039fc81141c7
          • MD5 SHA1 SHA512 TLSH

          4lxwged5.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fe008c0464a300b2)\4lxwged5.newcfg
          • Size 883B
          • SHA256 b9b46b3ad345fecf79f89f56928b4aba01dce3fabbc0ddd481981a8b82622fd2
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fe008c0464a300b2)\user.config
          • Size 520B
          • SHA256 7a7d35204c9b0fcbef49d1d329ea321faa0b928e2303457494d9644fdfb74dd2
          • MD5 SHA1 SHA512 TLSH

          memory/2916-83-0x00000000056F0000-0x0000000005718000-memory.dmp

          memory/3832-167-0x0000000001DF0000-0x0000000001E0A000-memory.dmp

          memory/3832-212-0x00000000045B0000-0x00000000045F1000-memory.dmp

          memory/3832-214-0x0000000004B40000-0x0000000004C16000-memory.dmp

          memory/3832-209-0x0000000004620000-0x000000000468C000-memory.dmp

          memory/3832-177-0x0000000004710000-0x00000000048C0000-memory.dmp

          memory/3832-173-0x00000000044C0000-0x0000000004554000-memory.dmp

          memory/3832-210-0x0000000004960000-0x00000000049F2000-memory.dmp

          memory/3832-186-0x0000000004560000-0x00000000045B0000-memory.dmp

          memory/4304-231-0x000000001B840000-0x000000001B8D4000-memory.dmp

          memory/4304-233-0x000000001BA90000-0x000000001BC40000-memory.dmp

          memory/4304-234-0x00000000029F0000-0x0000000002A0A000-memory.dmp

          memory/4304-235-0x000000001CE80000-0x000000001D006000-memory.dmp

          memory/4304-230-0x000000001B410000-0x000000001B47C000-memory.dmp

          memory/4304-221-0x00000000008C0000-0x000000000096E000-memory.dmp

          memory/4860-39-0x0000000005660000-0x000000000568E000-memory.dmp

          memory/4860-43-0x00000000056A0000-0x00000000056AC000-memory.dmp

          memory/4860-47-0x00000000057A0000-0x0000000005834000-memory.dmp

          memory/4860-51-0x00000000059F0000-0x0000000005BA0000-memory.dmp

          memory/4952-5-0x0000000005C80000-0x0000000005CA8000-memory.dmp

          memory/4952-1-0x0000000000F90000-0x0000000000F98000-memory.dmp

          memory/4952-2-0x0000000005D10000-0x0000000005D20000-memory.dmp

          memory/4952-3-0x0000000003490000-0x000000000349C000-memory.dmp

          memory/4952-4-0x0000000005BF0000-0x0000000005C84000-memory.dmp

          memory/4952-6-0x0000000005D20000-0x0000000005ED0000-memory.dmp

          memory/4952-7-0x0000000006480000-0x0000000006A24000-memory.dmp

          memory/4952-8-0x0000000005D10000-0x0000000005D20000-memory.dmp

          memory/4952-0-0x0000000005D10000-0x0000000005D20000-memory.dmp