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vdownloader4oc.exe

VDownloader

Install Solution LTDA

This is the Somoto BetterInstaller, an installer that bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application vdownloader4oc.exe, “VDownloader Setup ” by Install SolutionA has been detected as adware by 3 anti-malware scanners. The program is a setup application that uses the Somoto BetterInstaller installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from s3.amazonaws.com and multiple other hosts.
Publisher:
(c) Vitzo Limited   (signed by Install Solution LTDA)

Product:
VDownloader

Description:
VDownloader Setup

MD5:
9cbea66161a70513f18a4d1e51bf8c67

SHA-1:
a01bd6b33dd36590921d153ec4083ab953473bb5

SHA-256:
364f05f1970936d3b16d065fa4a9a7c4e8b572e3826aecba950eded7d7ad2c08

Scanner detections:
3 / 68

Status:
Adware

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:
12/24/2024 5:37:47 PM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Adware.Win32.Somoto
4.0.3.141030

ESET NOD32
Win32/Somoto
8.10629

Reason Heuristics
PUP.Installer.Somoto
15.2.14.11

File size:
538.6 KB (551,552 bytes)

Product version:
[name/version]

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Somoto BetterInstaller (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\temp\vdownloader4oc.exe

Digital Signature
Signed by:
Install Solution LTDA

Authority:
Unizeto Technologies S.A.

Valid from:
1/31/2014 5:50:18 AM

Valid to:
1/31/2015 5:50:18 AM

Subject:
E=suporte@installsolution.com.br, CN="Open Source Developer, Install Solution LTDA", O=Install Solution LTDA, C=BR

Issuer:
CN=Certum Level III CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL

Serial number:
5FA3F40AF30F88E29492DC309E9D0432

File PE Metadata
Compilation timestamp:
6/19/1992 11:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:bQiGNJyZOBL8+iDJIasco4GYMXQ6bdqJfwaLcNP:bQiHZOZ8A+o4GYmzgfkP

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 file vdownloader4oc.exe has been seen being distributed by the following 4 URLs.

https://s3.amazonaws.com/.../VDownloader4OC.exe

http://vdownloader.com.br/get/.../

http://vdownloader.com.br/.../latest

http://www.vdownloader.com.br/.../latest

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