setup.exe

maucampo

This is the installer and setup program from the maucampo branded Yontoo adware web browser extension. This adware injects various forms of advertisements in the user's web browser based on the HTML content and URLs viewed. Ad include banners, in-line context text links, coupons, and search. The program will install an auto-updating background service that will update the software with additional features. The application setup.exe by maucampo has been detected as adware by 18 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
maucampo  (signed and verified)

MD5:
4aadd9e22ecb3d449c42e9a5e8716c41

SHA-1:
3ab1aac4c3d883ab9808a3dc285678c787584c07

SHA-256:
63965a3685a05811d04ba8a0b1b52a39a1a28eb5b1d111f76c13ea490c93d047

Scanner detections:
18 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
12/27/2024 7:52:50 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.Maucampo
2015.0.3494

Baidu Antivirus
Adware.Win32.Agent
4.0.3.14425

Comodo Security
Application.Win32.Altbrowse.AK
18113

Dr.Web
Trojan.BPlug.11
9.0.1.0115

ESET NOD32
Win32/BrowseFox (variant)
8.9683

Fortinet FortiGate
Adware/Agent
4/25/2014

G Data
Win32.Application.BrowseFox
14.4.24

IKARUS anti.virus
not-a-virus:AdWare.Win32.Agent
t3scan.1.6.1.0

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.3964

Malwarebytes
PUP.Optional.Maucampo.A
v2014.04.25.03

McAfee
Artemis!4AADD9E22ECB
5600.7150

NANO AntiVirus
Riskware.Win32.Agent.cuenda
0.28.0.59288

Reason Heuristics
PUP.Installer.maucampo.F
14.8.8.0

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14423

Sophos
Generic PUA AD
4.98

SUPERAntiSpyware
Adware.BrowseFox/Variant
10645

Trend Micro House Call
TROJ_GEN.F47V0415
7.2.115

VIPRE Antivirus
Adware.Agent
28280

File size:
2 MB (2,059,040 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\setup.exe

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
11/27/2013 8:00:00 AM

Valid to:
11/28/2014 7:59:59 AM

Subject:
CN=maucampo, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=maucampo, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
40BF170484E09DB904849DB86C86A494

File PE Metadata
Compilation timestamp:
12/6/2009 6:52:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:rF8TBNZac35z0gYcGFQU3YCUEZLGHFRRoutYkl8Ly:ruTv7pz0JcZEZqlRR3OLy

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9974

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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

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

TCP (HTTP):
Connects to wac.edgecastcdn.net  (72.21.81.13:80)

TCP (HTTP):
Connects to service.yontoo.com  (8.25.35.148:80)

TCP (HTTP):
Connects to api.yontoo.com  (8.25.35.15:80)

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