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bytelabelsetup.exe

Byte Label

This is the installer and setup program from the Byte Label 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 bytelabelsetup.exe by Byte Label has been detected as adware by 12 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:
Byte Label  (signed and verified)

MD5:
447005387ea1f012e9189ac3bf3ddbe3

SHA-1:
6b611692afa88755b4fe616c4bf9760f4a9c37a2

SHA-256:
25484ffb52cb9bbf9cd4a4b622d8bbbb0a4c9430e818a43c0ab275b225177314

Scanner detections:
12 / 68

Status:
Adware

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

Analysis date:
4/27/2024 2:38:17 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.03.31

AVG
Generic
2016.0.3154

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.15331

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Yontoo.1734
9.0.1.05190

ESET NOD32
Win32/BrowseFox.C potentially unwanted application
7.0.302.0

G Data
NSIS.Application.BrowseFox
15.3.25

herdProtect (fuzzy)
variant of primarycolorsetup.exe (Adware)
2015.7.4.23

NANO AntiVirus
Trojan.Nsis.BrowseFox.dnxihk
0.30.8.659

Reason Heuristics
PUP.Installer.Yontoo
15.3.31.2

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.15329

VIPRE Antivirus
Threat.4150696
38552

File size:
465 KB (476,184 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\bytelabelsetup.exe

Digital Signature
Signed by:
Byte Label

Authority:
VeriSign, Inc.

Valid from:
12/16/2014 7:00:00 PM

Valid to:
12/17/2015 6:59:59 PM

Subject:
CN=Byte Label, O=Byte Label, L=Santa Monica, 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:
130858D16CAF60ADAA9933932CD06054

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:x1XRD1u1s15Ap/G/8/3D0Fw/tN8dkmLtpHHHrh7J:xZDu6j8/z0FmcLbH1J

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:
7.9741

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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