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buzzdocksetup.exe

Buzzdock

Alactro LLC

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application buzzdocksetup.exe by Alactro has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a self-extracting archive and installer and has been known to bundle potentially unwanted software. While running, it connects to the Internet address api.yontoo.com on port 80 using the HTTP protocol.
Publisher:
Alactro LLC  (signed and verified)

Product:
Buzzdock

Description:
Installer

Version:
2015.9.29.1819

MD5:
acf38cb0ce719e5f930bf7b65d5dd0a5

SHA-1:
677ba26624ef225c588abc1a3ecf11af63bd5b82

SHA-256:
b0fddc03363c854d575e9bf72f0fbf142fb518b75c88ea54632314e2b1ee2073

Scanner detections:
1 / 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:
5/3/2024 4:14:06 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
16.7.27.8

File size:
1.2 MB (1,275,816 bytes)

Product version:
2.0.1.1

Copyright:
Copyright (c) 2012 Alactro LLC. All rights reserved.

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\buzzdocksetup.exe

Digital Signature
Signed by:
Alactro LLC

Authority:
VeriSign, Inc.

Valid from:
6/24/2013 7:00:00 PM

Valid to:
8/23/2016 6:59:59 PM

Subject:
CN=Alactro LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Alactro LLC, L=Grandville, S=Michigan, 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:
018D4FCE8B07C5BF93892F3E2AB578D5

File PE Metadata
Compilation timestamp:
3/10/2011 8:55:32 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
24576:t74+omflUBSj3wIzKHAtkTHsv8GonZuFiqNh69n1pmQ4FHX4dNzXOzc:Fyo3bzboHsv8DngvNh4nyXH0zXOQ

Entry address:
0x1627

Entry point:
55, 8B, EC, 81, EC, 58, 0B, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, A8, F4, FF, FF, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 00, 40, 40, 00, FF, 15, 70, 30, 40, 00, 89, 45, F8, 8D, 85, B8, FC, FF, FF, 50, C7, 85, B8, FC, FF, FF, 14, 01, 00, 00, FF, 15, 6C, 30, 40, 00, 85, C0, 75, 21, FF, 15, 14, 30, 40, 00, 50, 68, 30, 34, 40, 00, E8, 40, FA, FF, FF, 59, C7, 05, 04, 40, 40, 00, FF, 00, 00, 00, E9, C5, 01, 00, 00, 68, 1C, 34, 40, 00, 68, 0C, 34, 40, 00, FF, 15, 68, 30, 40, 00, 50, FF, 15, 64, 30, 40, 00, 3B...
 
[+]

Entropy:
7.9769

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 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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