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instmsiw.exe

Windows Installer - Unicode

Microsoft Corporation

This is a setup and installation application. This is installed with Microsoft Photo Premium 10. The file has been seen being downloaded from www.dropbox.com and multiple other hosts.
Publisher:
Microsoft Corporation  (signed and verified)

Product:
Windows Installer - Unicode

Description:
Installer for the Windows Installer

Version:
2.0.2600.2

MD5:
53820efbc952107ee1a38be6cd5aa3f0

SHA-1:
4fc3bf0dc96b5cf5ab26430fac1c33c5c50bd142

SHA-256:
4c3516c0b5c2b76b88209b22e3bf1cb82d8e2de7116125e97e128952372eed6b

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)
Whitelisted  (by digital signature)

Analysis date:
1/4/2025 5:22:06 AM UTC  (today)

File size:
1.7 MB (1,822,848 bytes)

Product version:
2.0.2600.2

Copyright:
Copyright (c) Microsoft Corp. 2000

Original file name:
Msi.dll,MsiHnd.dll,MsiExec.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\startup_tool\instmsi\instmsiw.exe

Digital Signature
Signed by:
Microsoft Corporation

Authority:
Microsoft Corporation

Valid from:
5/25/2002 9:55:48 AM

Valid to:
11/25/2003 10:05:48 AM

Subject:
CN=Microsoft Corporation, OU=Copyright (c) 2002 Microsoft Corp., O=Microsoft Corporation, L=Redmond, S=Washington, C=US

Issuer:
CN=Microsoft Code Signing PCA, OU=Copyright (c) 2000 Microsoft Corp., O=Microsoft Corporation, L=Redmond, S=Washington, C=US

Serial number:
61071143000000000034

File PE Metadata
Compilation timestamp:
3/2/2001 6:56:32 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
7.0

CTPH (ssdeep):
49152:eFxErb1F2gqQF6d8RrycC51DtuoIwgpXIfWzbnoP2qDAp:GGb1FLqQF6dWry//DthQiooP2qDAp

Entry address:
0x5A8B

Entry point:
55, 8B, EC, 83, EC, 44, 56, FF, 15, 5C, 11, 00, 01, 8B, F0, 8A, 06, 3C, 22, 75, 12, 46, 8A, 06, 84, C0, 74, 04, 3C, 22, 75, F5, 80, 3E, 22, 75, 13, EB, 10, 3C, 20, 7E, 0D, 46, 80, 3E, 20, 7F, FA, EB, 05, 3C, 20, 7F, 07, 46, 8A, 06, 84, C0, 75, F5, 83, 65, E8, 00, 8D, 45, BC, 50, FF, 15, 58, 11, 00, 01, F6, 45, E8, 01, 74, 06, 0F, B7, 45, EC, EB, 03, 6A, 0A, 58, 50, 56, 6A, 00, 6A, 00, FF, 15, 54, 11, 00, 01, 50, E8, 35, FF, FF, FF, 50, FF, 15, 04, 11, 00, 01, 5E, 53, 8B, 5C, 24, 08, 3A, 5C, 24, 0C, 75, 1B...
 
[+]

Entropy:
7.9877

Developed / compiled with:
Microsoft Visual C++

Code size:
33.5 KB (34,304 bytes)

The file instmsiw.exe has been discovered within the following program.

Microsoft Photo Premium 10  by Microsoft Corporation
Publisher's description - “Microsoft Picture It! Premium 10 offers easy-to-use photo tools for digital camera owners who want a complete digital photo solution. Use project templates for photo cards, calendars, labels, flyers, and more to make sure your photos always look their best.”
go.microsoft.com/fwlink/?linkid=29535&clcid=0x809
1% remove it
 
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The file instmsiw.exe has been seen being distributed by the following 8 URLs.

https://www.dropbox.com/sh/g4y6ek13straaj8/AACHw7CjxYsEHEzQ6XkQF147a/2. Drivers NFC/ACS-Unified-MSI-Winx86-4040-P/.../InstMsiW.exe

http://sdfox7.com/.../INSTMSIW.EXE

http://www.sefaz.pi.gov.br/.../instmsiw.exe

ftp://9.10.21.249/Instalador Sistema Kunaretail/Release PDV 3.0/.../instmsiw.exe

https://download.microsoft.com/download/WindowsInstaller/Install/2.0/NT45/.../InstMsiW.exe

http://download.microsoft.com/download/WindowsInstaller/Install/2.0/NT45/.../InstMsiW.exe

http://www.echolink.org/.../InstMsiW.exe

https://servizi.inps.it/servizi/isee/Download/Controllo/.../InstMsiW.exe

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