Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    29/06/2026, 12:19

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 11.8MB
  • Sample260629-pg6dmac16z
  • SHA256 036787c51929ccbb1c937ec0456531fd396965c139a3df8d05d93c5848662f8d
  • 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.

  • 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.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 42 IoCs
  • 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 25 IoCs
  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 13 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 28 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 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:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4392
  • 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:1912
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C83846C1AE2927CAFD6AD38FF6F7482D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6F9D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240676875 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2624
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7328.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240677671 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2184
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6C10.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240741390 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2252
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4092
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 70F50F9FD197774E094F18B03D970F32
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1236
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8E7C27DC7ACD2248F8EB70CEB4803ACD E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:1676
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4036
    • C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-i0kriy-relay.screenconnect.com&p=443&s=a05f894c-8577-4154-9140-fd7c73877265&k=BgIAAACkAABSU0ExAAgAAAEAAQD5u7nnPHHHlGWW7E01htBo%2fLpiKiB9qTyfh%2bwDkn1XT9vFdyhHe6NimRglyFD%2f9YAIvvCUplAH0hhmomj1gktqeKJmrdgrYu7ZFPMYH6%2bMcpoVMKgbByrdLdUtXpbzMwGbhy2EO4G5blCL3GBlbALJt4J6%2fe6ICru2Ky8Vfh9F5%2fTYBo0bFp56VsM08620tmsreJl5EepItmClgxfHkAuYyHsJ4z%2b4Ig3F7OYJdA%2bxfval2Uu%2bXBuQnSk6uT%2f11xqHSm7df5qD43SSZk8AgTP0wixuFpScpKv7MDbZrsDwnnKoN657ECg%2bYZOWDEY39MHjiyS8yVll88metk6mQp6b"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4084
      • C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.WindowsClient.exe" "RunRole" "ad495e5c-e005-43a6-83c3-9529039f360d" "User"
        2⤵
        • Executes dropped EXE
        • Modifies data under HKEY_USERS
        • Suspicious use of FindShellTrayWindow
        PID:3336
      • C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.WindowsBackstageShell.exe
        "C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.WindowsBackstageShell.exe"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious use of SetWindowsHookEx
        PID:452
      • C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.WindowsClient.exe" "RunRole" "603ca376-a48a-493a-a9b3-9982cce57304" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1672

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59a32d.rbs

          • Path C:\Config.Msi\e59a32d.rbs
          • Size 214KB
          • SHA256 66a7472505c6828920ef4ac535bfb85d3f91c236b52dfb8db3f68dabdc891f47
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\app.config
          • Size 1KB
          • SHA256 81d0cc667c5c201267786b2d25b4319354b1d1b1fef2162286be9f35fa363c4e
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6dc330f3c8187102)\system.config
          • Size 966B
          • SHA256 fedbec7dff5028d6c4eee02724f258e1ba2cb5febff9b1de442e1f6a05baf9b7
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 5c7338db576b3824abe29af5aaa853efd1ca2a69b6023fb5a100ee7b49998fde
          • MD5 SHA1 SHA512 TLSH

          BA74182F76F15A9CF514DEF352303C95

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\BA74182F76F15A9CF514DEF352303C95
          • Size 737B
          • SHA256 3deb6a9e47ab389cc1df8654170a84d58bd4ff0d2e04b5daa93e564bf87e7efd
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 d077a4caf2b6764a2ac95b6f0a16917c0477e1b5789c5773adb582e41ecb51b7
          • MD5 SHA1 SHA512 TLSH

          BA74182F76F15A9CF514DEF352303C95

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\BA74182F76F15A9CF514DEF352303C95
          • Size 248B
          • SHA256 1699196e583895135cb56471a83f5e1d8f6a6e0b3993f125a4d4bb239378c7b3
          • 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

          MSI6F9D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F9D.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F9D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F9D.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F9D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6F9D.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7328.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7328.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA465.tmp

          • Path C:\Windows\Installer\MSIA465.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59a32c.msi

          • Path C:\Windows\Installer\e59a32c.msi
          • Size 11.8MB
          • SHA256 036787c51929ccbb1c937ec0456531fd396965c139a3df8d05d93c5848662f8d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          qqhlhpyz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6dc330f3c8187102)\qqhlhpyz.newcfg
          • Size 882B
          • SHA256 b21632aa9c9f72aa6d5db76b465464024c457793e91725b58b558cd6c747b9a8
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6dc330f3c8187102)\user.config
          • Size 520B
          • SHA256 6944c84eed3d706ee6fb117d8a78ca36317f54b0cc894e155ed081c26c1ae42e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6dc330f3c8187102)\user.config
          • Size 683B
          • SHA256 523a792ab5320d1f460140440ab7765fc3ed06858b40c82127a10b4974d0b803
          • MD5 SHA1 SHA512 TLSH

          memory/452-224-0x00000000002B0000-0x00000000002C6000-memory.dmp

          memory/2184-74-0x0000000004C40000-0x0000000004C68000-memory.dmp

          memory/2624-37-0x00000000057A0000-0x0000000005834000-memory.dmp

          memory/2624-42-0x0000000006150000-0x00000000066F4000-memory.dmp

          memory/2624-29-0x0000000005670000-0x000000000569E000-memory.dmp

          memory/2624-41-0x00000000059F0000-0x0000000005BA0000-memory.dmp

          memory/2624-33-0x00000000056B0000-0x00000000056BC000-memory.dmp

          memory/3336-218-0x0000000000D70000-0x0000000000E1C000-memory.dmp

          memory/3336-219-0x0000000002F30000-0x0000000002F9C000-memory.dmp

          memory/3336-226-0x000000001D190000-0x000000001D316000-memory.dmp

          memory/3336-225-0x0000000002E90000-0x0000000002EAA000-memory.dmp

          memory/3336-221-0x000000001BFD0000-0x000000001C180000-memory.dmp

          memory/3336-220-0x000000001BD80000-0x000000001BE14000-memory.dmp

          memory/4084-167-0x0000000003D50000-0x0000000003F00000-memory.dmp

          memory/4084-163-0x0000000003B00000-0x0000000003B94000-memory.dmp

          memory/4084-157-0x0000000003900000-0x000000000391A000-memory.dmp

          memory/4084-187-0x0000000003F70000-0x0000000003FDC000-memory.dmp

          memory/4084-196-0x0000000003CF0000-0x0000000003D31000-memory.dmp

          memory/4084-170-0x0000000003CA0000-0x0000000003CF0000-memory.dmp

          memory/4084-202-0x0000000004260000-0x0000000004336000-memory.dmp

          memory/4084-194-0x0000000004080000-0x0000000004112000-memory.dmp

          memory/4084-227-0x0000000006EB0000-0x0000000006F16000-memory.dmp