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icreinstall_microsoft-excel-viewer-32-bits.exe

Application

No Zebra Network Ltda.

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_microsoft-excel-viewer-32-bits.exe, “Application Setup ” by No Zebra Networka 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 installCore installer. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
Prog   (signed by No Zebra Network Ltda.)

Product:
Application

Description:
Application Setup

Version:
2.0.4.5

MD5:
16f9eefebdfc4792293fb43380d0cddb

SHA-1:
ce2d6d343f95e03ba1f7a5f67d57a0c1d9ef82c2

SHA-256:
471f3c979397781fc2db965983211ab16b2f5503057fa757657ca73e1f814f11

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Utilizes the InstallCore download manager that may bundle various adware-type offers.

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:
4/19/2024 2:34:31 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.NoZebraNetworka.Installer (M)
16.2.15.19

File size:
679.6 KB (695,896 bytes)

Product version:
5.3

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_microsoft-excel-viewer-32-bits.exe

Digital Signature
Signed by:
No Zebra Network Ltda.

Authority:
GlobalSign nv-sa

Valid from:
2/25/2015 2:47:16 PM

Valid to:
2/26/2016 2:47:16 PM

Subject:
CN=No Zebra Network Ltda., O=No Zebra Network Ltda., S=Parana, C=BR

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121BAB7A6FBCACB7AA9C882ADB0096DFE1A

File PE Metadata
Compilation timestamp:
6/19/1992 7:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:NqnG6b0qID4C16d0Y3/fD4YMSKFfSvTKsAtjgrGSmWuQFi1GTud761ZUik:NqnJkD3ad/Lx1uUO1tcVDu4i1GaVw2t

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

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