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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 6 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:
0c64a029639f36c1e9e797d4d8b60ff9

SHA-1:
6197005148f9c42b4afa174e0543861ac3dbcfec

SHA-256:
08e66fe655fc335c72ed190bac2787d6a0bfaf3a37b1162032969d952f91ab3b

Scanner detections:
6 / 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 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:
12/29/2024 7:04:41 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen9
7.11.189.62

AVG
Generic
2015.0.3277

ESET NOD32
Win32/InstallCore.QW (variant)
8.10793

Qihoo 360 Security
Win32/Virus.Adware.f22
1.0.0.1015

Reason Heuristics
PUP.GTConsultoriaemInformaticaa.I
15.1.4.13

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.3

File size:
710.5 KB (727,536 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Digital Signature
Signed by:
GT Consultoria em Informática Ltda

Authority:
COMODO CA Limited

Valid from:
6/30/2014 8:00:00 AM

Valid to:
7/1/2015 7:59:59 AM

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:
6/20/1992 6:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:MKLKvpRvsWoi0Jp+6iT61V2+TPt1I/KzLvfnNq9MYXTXFdtYZN6k5tlvKP:MFvrvsWoi0JQ6/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...
 
[+]

Entropy:
7.8134

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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