Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/07/2026, 00:25

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260728-aq2dpsvbma
  • SHA256 d49ebf2e9b0b5df3255b60db1c2762934c0b7cfea2bee3476c484523ca27aa52
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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 50 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 12 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 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 SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 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
    • Suspicious use of SetWindowsHookEx
    PID:1268
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Badlisted process makes network request
    • 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:5904
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 6A373C169C31435CFC2EDAAF6AA87FB0 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3352
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI912A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240751250 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5500
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI97C3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752781 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2312
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9F07.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240754484 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1212
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3060
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8B88B5CA4CA0646CB0E0998C6F444F03
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3592
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9AE357255EBEFBA4B3EC9718874198A7 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5536
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5116
    • C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-tkvdz2-relay.screenconnect.com&p=443&s=df2a8f28-9cbb-4d2d-84cf-4864c90080ae&k=BgIAAACkAABSU0ExAAgAAAEAAQAxyschgmzLC2nqhmJdf5lfbax2L89Xcpa3fn2ybWeQEZdEvxaBz1iUmZVvCNz8C1jsMKYmdVxic70RbgBCWihSq2ELfzuR22Lg1TEbjbGUTyvsre3Q3AgZlZ8vIgQaTJmRJ577vr2dfFxGFUg9ufZMqmZRvfGh95YSckjE8rsTFNcFxXPYQUk7dIY0w0Efjjv4FTlfQVeSghblh5ec0ExHnNjeI2XNkEibS3xXwKow2Gy70wPXwHlDD5pbXmmr1Sq1g7dV0pCLiwJTrl9oPhmgr5um0pZXe1BTDxBNJwTaIkavggLVtLk9cXUSvInNiPih1cLHVQ3gkF1awIkfjSjE"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4132
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4132 -s 1340
        2⤵
        • Program crash
        PID:3200
    • C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-tkvdz2-relay.screenconnect.com&p=443&s=df2a8f28-9cbb-4d2d-84cf-4864c90080ae&k=BgIAAACkAABSU0ExAAgAAAEAAQAxyschgmzLC2nqhmJdf5lfbax2L89Xcpa3fn2ybWeQEZdEvxaBz1iUmZVvCNz8C1jsMKYmdVxic70RbgBCWihSq2EL%2fzuR22Lg1TE%2bjbGUTyvsre3Q3AgZlZ8vIgQaTJmRJ577vr2dfFxGFUg9ufZMqmZRv%2fGh95YSckjE8rsTFNcFxXPYQUk7dIY0w0Efjjv4FTl%2fQVeSgh%2blh5ec0ExHnNjeI2XNkEi%2bS3xXwKow2Gy70wPXwHlDD5p%2bXmmr1Sq1g7dV0pCLiwJTrl9oPhmgr5um0pZXe1BTDxBNJwTaIkavggLVtLk9cXUSvInNiPih1cLHVQ3gkF1awIk%2fjSjE"
      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:5464
      • C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsClient.exe" "RunRole" "61862bad-5009-4b66-8819-5f032a91e25b" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4280
      • C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsClient.exe" "RunRole" "f8ff15cf-21fe-449e-a146-ddba2f65c27b" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3220
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4132 -ip 4132
      1⤵
        PID:3116

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e59f8ce.rbs

            • Path C:\Config.Msi\e59f8ce.rbs
            • Size 214KB
            • SHA256 e30a06b330ccf4e72d5281bde83125738be42c3a4e906b26207702b037315bda
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Client.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.Client.dll
            • Size 412KB
            • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.dll
            • Size 91KB
            • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.ClientService.exe

            • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.exe
            • Size 93KB
            • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.Core.dll
            • Size 577KB
            • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
            • MD5 SHA1 SHA512 SSDEEP TLSH

            system.config

            • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\system.config
            • Size 960B
            • SHA256 c36f42f04e9d43be759e2bfad3094e421c0ec5d15ab9654135cad3cdd01d35d1
            • MD5 SHA1 SHA512 TLSH

            57C8EDB95DF3F0AD4EE2DC2B8CFD4157

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157
            • Size 342B
            • SHA256 e3977c33d2ab2bed1e183b686d7c39171baacb2a24a69eaec48816ddde156fe5
            • MD5 SHA1 SHA512 TLSH

            MSI912A.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\MSI912A.tmp
            • Size 1.1MB
            • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Microsoft.Deployment.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI912A.tmp-\Microsoft.Deployment.WindowsInstaller.dll
            • Size 172KB
            • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Core.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI912A.tmp-\ScreenConnect.Core.dll
            • Size 567KB
            • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.InstallerActions.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI912A.tmp-\ScreenConnect.InstallerActions.dll
            • Size 24KB
            • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ScreenConnect.Windows.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI912A.tmp-\ScreenConnect.Windows.dll
            • Size 1.7MB
            • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
            • MD5 SHA1 SHA512 SSDEEP TLSH

            CustomAction.config

            • Path C:\Users\Admin\AppData\Local\Temp\MSI97C3.tmp-\CustomAction.config
            • Size 234B
            • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
            • MD5 SHA1 SHA512 TLSH

            ScreenConnect.WindowsInstaller.dll

            • Path C:\Users\Admin\AppData\Local\Temp\MSI97C3.tmp-\ScreenConnect.WindowsInstaller.dll
            • Size 137KB
            • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MSI7F.tmp

            • Path C:\Windows\Installer\MSI7F.tmp
            • Size 202KB
            • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
            • MD5 SHA1 SHA512 SSDEEP TLSH

            e59f8cd.msi

            • Path C:\Windows\Installer\e59f8cd.msi
            • Size 9.8MB
            • SHA256 d49ebf2e9b0b5df3255b60db1c2762934c0b7cfea2bee3476c484523ca27aa52
            • MD5 SHA1 SHA512 SSDEEP TLSH

            0e3nqetc.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (42907a163a530f6b)\0e3nqetc.newcfg
            • Size 882B
            • SHA256 c58211c9d05082be1190dc4f39d440d37c90564118344a75cba0129de6163bff
            • MD5 SHA1 SHA512 TLSH

            3fag1mug.newcfg

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (42907a163a530f6b)\3fag1mug.newcfg
            • Size 683B
            • SHA256 f1166e00801fe6acabc8058358c01184384f042e2881ad4c7878ccf293e03f7f
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (42907a163a530f6b)\user.config
            • Size 520B
            • SHA256 afbeaad980122b079c59c49fae67327b5daf1b20ade33d00e43608ee13e1fc8f
            • MD5 SHA1 SHA512 TLSH

            user.config

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (42907a163a530f6b)\user.config
            • Size 882B
            • SHA256 9a361d47b82b25dcae6a06bfc6b4e38fc0e2226299161e765c2b69509ee6a63d
            • MD5 SHA1 SHA512 TLSH

            memory/2312-62-0x0000000005380000-0x00000000053A8000-memory.dmp

            memory/4132-143-0x0000000003160000-0x000000000317A000-memory.dmp

            memory/4280-217-0x000000001B8E0000-0x000000001BA68000-memory.dmp

            memory/4280-216-0x0000000000C40000-0x0000000000C5A000-memory.dmp

            memory/4280-215-0x000000001B5A0000-0x000000001B750000-memory.dmp

            memory/4280-218-0x0000000000C60000-0x0000000000CA1000-memory.dmp

            memory/4280-214-0x000000001B350000-0x000000001B3E4000-memory.dmp

            memory/4280-213-0x000000001AEC0000-0x000000001AF2C000-memory.dmp

            memory/4280-211-0x0000000000110000-0x00000000001BE000-memory.dmp

            memory/5464-161-0x0000000003DF0000-0x0000000003FA0000-memory.dmp

            memory/5464-197-0x0000000003D10000-0x0000000003D51000-memory.dmp

            memory/5464-198-0x0000000004230000-0x0000000004306000-memory.dmp

            memory/5464-196-0x0000000004040000-0x00000000040D2000-memory.dmp

            memory/5464-195-0x0000000003D80000-0x0000000003DEC000-memory.dmp

            memory/5464-176-0x0000000003CC0000-0x0000000003D10000-memory.dmp

            memory/5464-157-0x0000000003BA0000-0x0000000003C34000-memory.dmp

            memory/5500-19-0x0000000003590000-0x00000000035BE000-memory.dmp

            memory/5500-23-0x00000000035C0000-0x00000000035CC000-memory.dmp

            memory/5500-27-0x0000000005700000-0x0000000005794000-memory.dmp

            memory/5500-31-0x0000000005950000-0x0000000005B00000-memory.dmp

            memory/5500-32-0x00000000060C0000-0x000000000667A000-memory.dmp