setup.exe

Surftastic

This is the installer and setup program from the Surftastic 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 Surftastic has been detected as adware by 22 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:
Surftastic  (signed and verified)

MD5:
2fa99941dffed0eb3bc07ff7df1b74c0

SHA-1:
509f1a83941ff92c9eac609c0f4a0b34f0895be3

SHA-256:
f475553114202b6addc730adae1e558b5b35b6748491cd4f5d0176f7820d110a

Scanner detections:
22 / 68

Status:
Adware

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

Analysis date:
4/26/2024 1:56:48 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.Surftastic.A
1017

Avira AntiVirus
APPL/BrowseFox.Gen2
7.11.145.6

AVG
Agent.W
2015.0.3495

Bitdefender
Adware.Surftastic.A
1.0.20.565

Comodo Security
Application.Win32.Altbrowse.AK
18156

Dr.Web
Trojan.BPlug.20
9.0.1.0113

Emsisoft Anti-Malware
Adware.Surftastic
8.14.04.23.08

ESET NOD32
Win32/BrowseFox (variant)
8.9713

F-Secure
Adware.Surftastic.A
11.2014-23-04_4

G Data
Adware.Surftastic
14.4.24

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.3971

Malwarebytes
PUP.Optional.Surftastic.A
v2014.04.23.08

McAfee
Artemis!2E9049E1B546
5600.7151

MicroWorld eScan
Adware.Surftastic.A
15.0.0.339

NANO AntiVirus
Riskware.Win32.Agent.cqycvd
0.28.0.59492

nProtect
Adware.Surftastic.A
14.04.23.01

Reason Heuristics
PUP.Installer.Surftastic.F
14.4.23.20

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14421

Sophos
Generic PUA AG
4.98

SUPERAntiSpyware
Adware.BrowseFox/Variant
10647

Trend Micro House Call
TROJ_GE.E05E03A0
7.2.113

VIPRE Antivirus
Yontoo
28548

File size:
2 MB (2,121,360 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:
1/2/2014 4:00:00 PM

Valid to:
1/3/2015 3:59:59 PM

Subject:
CN=Surftastic, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Surftastic, 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:
117C1C381BA3522C50659E614BB20D99

File PE Metadata
Compilation timestamp:
12/5/2009 2:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:TvLMF84T3vLtnz0gbYjrRv7t0Pp/A98vLMl82:ku4T3zZz0C2rRzt0P1UO2

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:
7.9976

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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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