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setup.exe

WunderWeb

This is the installer and setup program from the WunderWeb 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 WunderWeb has been detected as adware by 6 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:
WunderWeb  (signed and verified)

MD5:
943a82046a8f1745c00e5d109d47b1ac

SHA-1:
7c98e3c2e7773c7aae852d940fb9094e193b1e66

SHA-256:
4bdf989a9803e0e5bf97049e2aecee1d03bee5fcff908bf69343210334bd7a35

Scanner detections:
6 / 68

Status:
Adware

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

Analysis date:
4/20/2024 1:57:37 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Searcher.2574
9.0.1.040

ESET NOD32
Win32/BrowseFox (variant)
8.8798

McAfee
Artemis!943A82046A8F
5600.7225

Reason Heuristics
PUP.Installer.WunderWeb.F
14.8.8.0

Trend Micro House Call
TROJ_GEN.F47V0909
7.2.40

VIPRE Antivirus
Yontoo
21462

File size:
757.3 KB (775,496 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:
WunderWeb

Authority:
VeriSign, Inc.

Valid from:
8/13/2013 10:00:00 AM

Valid to:
8/14/2015 9:59:59 AM

Subject:
CN=WunderWeb, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=WunderWeb, 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:
766C8ED1334566AB295138A99FE038D9

File PE Metadata
Compilation timestamp:
12/6/2009 9:50:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:F2SdcHq/G/8qHk5Lhew9GumfYwR+Q++/v13/FpTbMUl6o6SFSdcHq/G/8:Fq84AhDRiYwR+Q+QHTbMUlL8

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, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9857

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://wpc.0952.edgecastcdn.net/800952/.../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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