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setup.exe

Xaven

This is the installer and setup program from the Xaven 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 Xaven has been detected as adware by 11 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:
Xaven  (signed and verified)

MD5:
12fef0009f528272adc595e02f0c9ba6

SHA-1:
230ab4d09e0d1cfcf3ee619354348bdcc896263c

Scanner detections:
11 / 68

Status:
Adware

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

Analysis date:
4/26/2024 9:23:36 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:BHO-AMP [Adw]
2014.9-140205

Bkav FE
W32.Clode27.Trojan
1.3.0.4562

Dr.Web
Adware.Searcher.2574
9.0.1.036

ESET NOD32
Win32/BrowseFox
8.9057

Fortinet FortiGate
W32/BrowseFox.B
2/5/2014

G Data
Win32.Trojan.Agent.K6NDS1
14.2.22

IKARUS anti.virus
Win32.AdWare
t3scan.2.2.29

Malwarebytes
PUP.Optional.Xaven.A
v2014.02.05.04

Reason Heuristics
PUP.Installer.Xaven.F
14.2.14.12

Trend Micro House Call
TROJ_GEN.F47V1026
7.2.36

VIPRE Antivirus
Yontoo
23442

File size:
876.2 KB (897,248 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Documents and Settings\{user}\Local settings\temporary internet files\content.ie5\{random}\setup.exe

Digital Signature
Signed by:
Xaven

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 2:00:00 AM

Valid to:
10/8/2014 1:59:59 AM

Subject:
CN=Xaven, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Xaven, 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:
0A5CE2C650CAC6A06298CBDABAEB9E5A

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:41 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:dn185O8AYPx/PAhDRiYwR+Q+WZWPVJk8qJ85s8:cw8A2nAdRiOIWPVJ168

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:
7.9887

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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