home

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:
328f5eefe60b875d08c497f8bcb11918

SHA-1:
ece097dfb11784344e8117fb6bcdd41ef04327b1

SHA-256:
95ab1e460c54a6e7bea9abbee673cd011404ccace5787d571f093e092df1fb38

Scanner detections:
18 / 68

Status:
Adware

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

Analysis date:
12/27/2024 7:00:38 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Agent
7.1.1

AVG
MalSign.Maucampo
2015.0.3524

Baidu Antivirus
Adware.Win32.Agent
4.0.3.14326

Comodo Security
Application.Win32.Altbrowse.AK
17993

Dr.Web
Trojan.BPlug.11
9.0.1.085

ESET NOD32
Win32/BrowseFox (variant)
8.9596

Fortinet FortiGate
Adware/Agent
3/26/2014

K7 AntiVirus
Unwanted-Program
13.176.11554

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.4113

Malwarebytes
PUP.Optional.Maucampo.A
v2014.03.26.10

McAfee
Artemis!328F5EEFE60B
5600.7180

NANO AntiVirus
Riskware.Win32.Agent.cuenda
0.28.0.58720

Reason Heuristics
PUP.Installer.maucampo.F
14.8.8.0

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14324

Sophos
Generic PUA FG
4.98

SUPERAntiSpyware
Adware.BrowseFox/Variant
10704

Trend Micro House Call
TROJ_GEN.F47V0319
7.2.85

VIPRE Antivirus
Adware.Agent
27750

File size:
2.8 MB (2,899,912 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:
maucampo

Authority:
VeriSign, Inc.

Valid from:
11/27/2013 1:00:00 AM

Valid to:
11/28/2014 12:59:59 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:
12/5/2009 11:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:XWF8FAdRiOb3uz0gQK5gX1oMc7BnXtV/BTL++1XDcOQLtPK5YWl8L+:XWuFWR/Luz03PC7n//BTPTcOoOYWOL+

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:
7.9986

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.

http://install-cdn.maucampo.net/setup.exe

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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