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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 4 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer.
Publisher:
Surftastic  (signed and verified)

MD5:
ee939cafb1577bcbc75a97a034c63f78

SHA-1:
caf548a9b215578a2240cdb22cb14ab8e548edec

SHA-256:
551340fdf9c7633357169421e79a7f55fee0d7f34b799c89b8a61b84050b6234

Scanner detections:
4 / 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:
5/8/2024 11:03:08 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Trojan.BPlug.20
9.0.1.078

herdProtect (fuzzy)
variant of toolbar156462934.exe (Adware)
2014.5.10.7

Reason Heuristics
PUP.Installer.Surftastic.P
14.3.19.11

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14317

File size:
227.7 KB (233,168 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\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):
6144:CZ+11R02CyLj3g7VmapnL/1RWBT5AYZm/G/HcO:b02D2nb1s15AB/G/8O

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:
7.9160

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file surftasticsetup.exe has been seen being distributed by the following URL.

http://install-cdn.surftastic.net/sd?is=org_

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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