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vdownloader4oc.exe

VDownloader

Bonjoy Software

The application vdownloader4oc.exe, “VDownloader Setup Program” by Bonjoy Software has been detected as adware by 6 anti-malware scanners. This is a self-extracting archive and installer and has been known to bundle potentially unwanted software. The installer uses the OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. The file has been seen being downloaded from files.downloadnow.com and multiple other hosts. While running, it connects to the Internet address bbb41f95.virtua.com.br on port 80 using the HTTP protocol.
Publisher:
Vitzo Limited  (signed by Bonjoy Software)

Product:
VDownloader

Description:
VDownloader Setup Program

Version:
4.0

MD5:
fd2f7dd0058b1101f7f0f23ab9d1a57d

SHA-1:
ba172664dfc1c59f5c3c2eed4120a65a4b015c44

SHA-256:
12a6d6d035ae251c244a209bce723b5d597e378d260be1ba42c6c36f1fd85fa1

Scanner detections:
6 / 68

Status:
Adware

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
4/24/2024 8:15:28 AM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Adware.Win32.OpenCandy
4.0.3.1516

ESET NOD32
Win32/OpenCandy (variant)
9.10973

McAfee
Artemis!FD2F7DD0058B
5600.6893

Reason Heuristics
PUP.Installer.BonjoySoftware.O
15.1.6.22

Trend Micro House Call
Suspicious_GEN.F47V0104
7.2.6

VIPRE Antivirus
Opencandy
36436

File size:
1.1 MB (1,156,096 bytes)

Product version:
4.0

Copyright:
Copyright © Vitzo Limited

Original file name:
VDownloaderSetup.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\vdownloader4oc.exe

Digital Signature
Signed by:
Bonjoy Software

Authority:
COMODO CA Limited

Valid from:
12/29/2014 1:00:00 AM

Valid to:
12/30/2015 12:59:59 AM

Subject:
CN=Bonjoy Software, O=Bonjoy Software, STREET="510 Market St #301", L=San Diego, S=CA, PostalCode=92101, C=US

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

Serial number:
00CD3BC6FFAA74061B7CABDCB0D74FBB12

File PE Metadata
Compilation timestamp:
12/16/2014 6:26:02 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
24576:3/xB2AUVbWNLHp0kT1ThvghS0g7svoGm8O4bLRp9k+D:3AKNLJNRThvg8LzGQ4JD

Entry address:
0x5B174

Entry point:
E8, 75, AB, 00, 00, E9, 79, FE, FF, FF, 8B, FF, 55, 8B, EC, 81, EC, C4, 00, 00, 00, A1, B0, A2, 49, 00, 33, C5, 89, 45, FC, 56, 8B, 75, 08, 57, 33, FF, 89, BD, 4C, FF, FF, FF, 3B, F7, 75, 1E, E8, AE, 2B, 00, 00, 6A, 16, 5E, 57, 57, 57, 57, 57, 89, 30, E8, DC, F5, FF, FF, 83, C4, 14, 8B, C6, E9, 24, 01, 00, 00, E8, E6, 6D, 00, 00, 8D, 85, 4C, FF, FF, FF, 50, E8, DD, 6E, 00, 00, 59, 85, C0, 74, 0D, 57, 57, 57, 57, 57, E8, 8A, F4, FF, FF, 83, C4, 14, 8B, 85, 4C, FF, FF, FF, 53, 6A, 3C, 99, 59, F7, F9, 66, 89...
 
[+]

Code size:
497 KB (508,928 bytes)

The file vdownloader4oc.exe has been seen being distributed by the following 6 URLs.

http://files.downloadnow.com/s/software/14/02/51/.../VDownloader4OC.exe

http://www.techtudo.com.br/_/software/.../download

http://up.br.bav.baidu.com/?rh=73F9D1C916BAB6F2118BF697C270B6D4&baidusign=14714454&baidurand=11806

http://software-files-a.cnet.com/s/software/14/02/51/.../VDownloader4OC.exe

http://getvdownloader.com/VDownloader4OC.exe

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

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

TCP (HTTP):
Connects to unallocated.barefruit.co.uk  (92.242.140.20:80)

TCP (HTTP):
Connects to bbb41f95.virtua.com.br  (187.180.31.149:80)

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