Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/06/2026, 18:23

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.2MB
  • Sample260625-w1tx9set91
  • SHA256 f51fd9780a223fc2dc5f1f821cb935745c27d852b47b01d3e6e984dea5bfaec3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 7 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 13 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 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 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:4152
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\bbe1694f4393c6ac\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:1860
  • 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:1848
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 371320E3BC0D612BE62095A006E78377 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3360
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5ED4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240672531 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:976
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6194.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240673187 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1276
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6649.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240674390 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1460
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4320
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3362518839812AA316CDA2DE6F2E11DD
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1620
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5C288CE86659C276B2D49006A286FA49 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2840
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2576
    • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-icc2hi-relay.screenconnect.com&p=443&s=793e5854-39a4-43f1-9e93-bf8e718909c3&k=BgIAAACkAABSU0ExAAgAAAEAAQAJDHZEg9jJtP%2blIpaQISytmZmxxmoVuKc1RtQqN9vu8pNmmG5FPpQr9egqkNxSBdh2%2fjgoPgUTIf0eKv2BA7BrIm3ZCzOMAHNPAkUAB%2fsVBJoEwcH2Zyi9NEAlWR3w7EZ9lPukCbtRZAG92dkn6UBMRiAJFutTM%2ffL7iRM9gnjAPvTr8C74JtNZ8ylNtyRVbb9rQYGvIO4hxwO5hIAPJrnJ2IKZM5QFsCCk%2frqNjID6KLercUmB0w6xfERMEHiy5Nuhjb8tv3CbKxjafzp1IeCrPplo5HkJSvIH%2fqVcy%2fAvGKzp2BIQS9HkNncoguoRwfSc8bHJtrmWkCswtLAdIuz&c=Newpark%20Drilling%20Fluids&c=India&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:3676
      • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe" "RunRole" "dfebb8a2-1e2a-4f4b-bf62-ecbef55e7553" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:440
      • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe" "RunRole" "a823a198-242d-4609-b2a0-5c13716feb13" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5044

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e589ac5.rbs

          • Path C:\Config.Msi\e589ac5.rbs
          • Size 214KB
          • SHA256 b1976a06f90d673e0e734bd1b3adb9d5791bca255f9c2b103f3354068302d5ce
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\app.config
          • Size 370B
          • SHA256 78d10a23cfb3fa11aee073c7f9ee5dad6af4fa792fb3ade9ea7e988fa2afbdb4
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\system.config
          • Size 958B
          • SHA256 9429bf581e29a7110ca710e01e36382ccede5020ffa96b2d52777207ed373ade
          • MD5 SHA1 SHA512 TLSH

          1A374813EDB1A6631387E414D3E73232

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\1A374813EDB1A6631387E414D3E73232
          • Size 171KB
          • SHA256 ef9efca23048e87b98c7ea247c72e5038f6933b3a46f57f0fed838d003c33916
          • MD5 SHA1 SHA512 SSDEEP TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 9896be4f1e4a2de16d0e12b194b2faf9dc4b2185ba74d32b44a7a876e70a78be
          • MD5 SHA1 SHA512 TLSH

          1A374813EDB1A6631387E414D3E73232

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\1A374813EDB1A6631387E414D3E73232
          • Size 306B
          • SHA256 e9aeef7f2aa14da83630f8bc08a2fb0af2f03711bf67eb1775535c0562a37260
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 b24cdae6226093543747c87fa4e6d1cf1177a2c641f0ed9c93c26ff5e4941979
          • 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

          MSI5ED4.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5ED4.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5ED4.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5ED4.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5ED4.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI5ED4.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6194.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6194.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\bbe1694f4393c6ac\ScreenConnect.ClientSetup.msi
          • Size 11.8MB
          • SHA256 3377af7e5905a8d50549edb4918a29231cac9d86ed592533974b112ce4b5c635
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI9C6B.tmp

          • Path C:\Windows\Installer\MSI9C6B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2yhrq3lp.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\2yhrq3lp.newcfg
          • Size 882B
          • SHA256 d1241f951c80190341493a0d19cd12a447bd80c93a1393336c5b64620e16e5f7
          • MD5 SHA1 SHA512 TLSH

          cjcyj2nt.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\cjcyj2nt.newcfg
          • Size 882B
          • SHA256 379b0ae1f74a02a2f4dffaa957093296848b91b8a6cc09e4a9087c045603cd71
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\user.config
          • Size 520B
          • SHA256 98cb1c3cf9d4fb2f266714913b93abb9da7dff05b068cf6565e10a07935817bf
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\user.config
          • Size 683B
          • SHA256 947c6efca9d31e5d1f88d21180e730851d2cfe8c99148a2db4a21a9b5d2c65b0
          • MD5 SHA1 SHA512 TLSH

          memory/440-233-0x000000001B5A0000-0x000000001B634000-memory.dmp

          memory/440-238-0x000000001CBE0000-0x000000001CD66000-memory.dmp

          memory/440-237-0x0000000000E10000-0x0000000000E2A000-memory.dmp

          memory/440-227-0x00000000005B0000-0x000000000065C000-memory.dmp

          memory/440-234-0x000000001B7F0000-0x000000001B9A0000-memory.dmp

          memory/440-228-0x0000000000EC0000-0x0000000000F2C000-memory.dmp

          memory/976-40-0x0000000002680000-0x00000000026AE000-memory.dmp

          memory/976-44-0x0000000002670000-0x000000000267C000-memory.dmp

          memory/976-48-0x0000000004AC0000-0x0000000004B54000-memory.dmp

          memory/976-52-0x0000000004D40000-0x0000000004EF0000-memory.dmp

          memory/1276-84-0x0000000004FD0000-0x0000000004FF8000-memory.dmp

          memory/3676-184-0x0000000004190000-0x00000000041E0000-memory.dmp

          memory/3676-181-0x0000000003F90000-0x0000000004140000-memory.dmp

          memory/3676-201-0x0000000004250000-0x00000000042BC000-memory.dmp

          memory/3676-204-0x0000000004360000-0x00000000043F2000-memory.dmp

          memory/3676-208-0x0000000004540000-0x0000000004616000-memory.dmp

          memory/3676-171-0x0000000003C50000-0x0000000003C6A000-memory.dmp

          memory/3676-206-0x00000000041E0000-0x0000000004221000-memory.dmp

          memory/3676-177-0x0000000003D40000-0x0000000003DD4000-memory.dmp

          memory/4152-6-0x0000000005770000-0x0000000005798000-memory.dmp

          memory/4152-5-0x00000000056E0000-0x0000000005774000-memory.dmp

          memory/4152-7-0x00000000057A0000-0x0000000005950000-memory.dmp

          memory/4152-2-0x00000000056D0000-0x00000000056E0000-memory.dmp

          memory/4152-1-0x00000000017D0000-0x00000000017D8000-memory.dmp

          memory/4152-8-0x0000000005F10000-0x00000000064B4000-memory.dmp

          memory/4152-3-0x00000000056D0000-0x00000000056E0000-memory.dmp

          memory/4152-9-0x00000000056D0000-0x00000000056E0000-memory.dmp

          memory/4152-4-0x0000000001990000-0x000000000199C000-memory.dmp

          memory/4152-0-0x00000000056D0000-0x00000000056E0000-memory.dmp