vdownloader4oc.exe

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 by Install SolutionA 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 Somoto BetterInstaller installer. The file has been seen being downloaded from s3-sa-east-1.amazonaws.com.
Publisher:
Install Solution LTDA  (signed and verified)

Version:
1.0.0.1

MD5:
34f3ab5961572493738470f7d2aabefe

SHA-1:
ac8a7290b360908bba71c2444f5aeaba4371969a

SHA-256:
c1211ce14b4709596568664fcfbfad401bcc17ecc1bd25519e21ba2e791b34f2

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
11/14/2024 2:28:39 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Somoto.InstallS (M)
16.4.3.6

File size:
408.7 KB (418,504 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Somoto BetterInstaller

Language:
Language Neutral

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

Digital Signature
Authority:
Unizeto Technologies S.A.

Valid from:
1/31/2014 3:50:18 AM

Valid to:
1/31/2015 3:50:18 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:
12/17/2010 7:14:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
6144:cA0m350GPlCHYz0k+GHgMudUpeSbY7hRyQeKd41e98zQQeDsK3DGWvnR6RAsPxE+:cA0i50GgFk1HXKUpevRzefBQQeD7HOxD

Entry address:
0x39AC

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, 7C, 01, 00, 00, E8, 97, 46, 00, 00, 83, EC, 0C, 68, 01, 80, 00, 00, E8, 42, 43, 00, 00, 6A, 00, E8, AB, 46, 00, 00, 6A, 08, A3, 88, 4C, 42, 00, E8, B1, 28, 00, 00, 6A, 00, 68, 60, 01, 00, 00, A3, 38, 4D, 42, 00, 8D, 85, 90, FE, FF, FF, 50, 6A, 00, 68, A4, A2, 40, 00, E8, F0, 45, 00, 00, 83, EC, 0C, 68, A5, A2, 40, 00, 68, 68, 4D, 42, 00, E8, EF, 2A, 00, 00, 83, C4, 18, E8, FE, 42, 00, 00, 52, 52, 50, 68, 00, D0, 42, 00, E8, DA, 2A, 00, 00, 57, 6A, 00, E8, 39, 42, 00, 00, 83...
 
[+]

Code size:
28.5 KB (29,184 bytes)

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

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