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surftasticsetup.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 Windows service that will update the software with additional features. The application surftasticsetup.exe by Surftastic has been detected as adware by 5 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer.
Publisher:
Surftastic  (signed and verified)

MD5:
bc4cc7ce89dd7f75b483faa3369dd978

SHA-1:
2e1d527cd6438c74a0f48fcb4ea11ae877afdb1e

SHA-256:
a392ea8d4ce00db8dc80829b4a380a4d01e9dfe03eb3bbbf7394664294d7feb8

Scanner detections:
5 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
12/25/2024 12:01:11 PM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Trojan.BPlug.20
9.0.1.0165

Reason Heuristics
PUP.Installer.Surftastic.P
14.6.14.14

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14612

Sophos
Surftastic Deals
4.98

VIPRE Antivirus
Trojan.Win32.Generic
28854

File size:
462.6 KB (473,720 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\surftasticsetup.exe

Digital Signature
Signed by:
Surftastic

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):
12288:rsz2nb1s15AB/G/8/3D0Fw/tN8dkmLtpHHHrh78:rs6nb6F8/z0FmcLbH18

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:
7.9737

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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