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osplayer.exe

GT Consultoria em Informática Ltda

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application osplayer.exe by GT Consultoria em Informáticaa has been detected as adware by 3 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from cdn.opensubhosting.com.
Publisher:
GT Consultoria em Informática Ltda  (signed and verified)

MD5:
66ff039cf39ed7988e3e5b2065cfb02c

SHA-1:
f579984ded4531330ca8d67478a04d9c8c120ba8

SHA-256:
29a3d3eb6a560c7bbc0463076a48d549d8b9ac4d1eac30fac51cdce4c8e98d5e

Scanner detections:
3 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
11/25/2024 4:33:25 PM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.14923

ESET NOD32
Win32/InstallCore.QC (variant)
8.10445

Reason Heuristics
PUP.GTConsultoriaemInformaticaa.I
15.1.4.13

File size:
710.5 KB (727,536 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:
GT Consultoria em Informática Ltda

Authority:
COMODO CA Limited

Valid from:
6/29/2014 7:00:00 PM

Valid to:
6/30/2015 6:59:59 PM

Subject:
CN=GT Consultoria em Informática Ltda, O=GT Consultoria em Informática Ltda, STREET=Av. Dr Paulo Japiassu Coelho 664, L=Juiz de Fora, S=Minas Gerais, PostalCode=36033-310, C=BR

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00F50B06E8234F5A0EB2D866646C969911

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:KKLKvpRvsWoi0Jp+6iT61V2+TPt1I/KzLvfnNq9MYXTXFdtYZN6k5tlvKP:KFvrvsWoi0JQ6/nP8/KzbfCHX7FYU

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

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

Code size:
37 KB (37,888 bytes)

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

http://cdn.opensubhosting.com/?ic_user_id=742

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