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installer_microsoft_office_english.exe

Vittalia Limited

This is the Vittalia Filewon Installer which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application installer_microsoft_office_english.exe by Vittalia Limited has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the Vittalia DM installer. The file has been seen being downloaded from ug.filewon.com.
Publisher:
Vittalia Limited  (signed and verified)

MD5:
df976c9ed3789b85c0c81638899eecf7

SHA-1:
41e1e506199da220d18944d144478fb6b4982772

SHA-256:
b908919d3c1452a27d07b4362dba464a21e6652339103a27aca0367497f2e736

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Bundles additional software, mostly toolbars and other potentially unwanted applications using the Vittalia monitization installer.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
5/7/2025 12:36:17 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Vittalia.Bundler (M)
16.2.10.9

File size:
788.3 KB (807,224 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Vittalia DM (using Nullsoft Install System)

Common path:
C:\users\{user}\downloads\installer_microsoft_office_english.exe

Digital Signature
Signed by:
Vittalia Limited

Authority:
VeriSign, Inc.

Valid from:
5/18/2013 7:00:00 AM

Valid to:
5/18/2016 6:59:59 AM

Subject:
CN=Vittalia Limited, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Vittalia Limited, L=Dublin, S=Dublin, C=IE

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
6CC8DB30E67B3DF9E2607EE882D390AC

File PE Metadata
Compilation timestamp:
12/6/2009 5:52:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:jWUO52sPS0bR72DrMts2JXXmJvDb0Sq80YrhqTcPT0e88l4Nsc+fr041+aWWNJRT:jWusRa2tHmJ9q80qm8sspj1+/WNJTvl

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9877

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file installer_microsoft_office_english.exe has been seen being distributed by the following URL.

http://ug.filewon.com/.../download?p=UG-MND&concordancia=b&red=s&plataforma=c&anuncio=37665848939&kw=download microsoft office 2010&ubicacion=&categoria=&random=10804039008772129093&posicion=1t1&tmuid=7aa0ec399cf0d1fda8d4a4cb29a8b2d4

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