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hulatoosetup.exe

HulaToo

This is the installer and setup program from the HulaToo 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 hulatoosetup.exe by HulaToo has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the Nullsoft Scriptable Install System installer.
Publisher:
HulaToo  (signed and verified)

MD5:
d1e59bec6f320b7d12b4734f9865ba3e

SHA-1:
c4534d29d9fac87a8d92dda4830c3f530e9e948d

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:
4/26/2024 12:09:11 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.HulaToo.Installer (M)
16.2.15.2

File size:
555.1 KB (568,387 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Nullsoft Scriptable Install System

Common path:
C:\Documents and Settings\{user}\Local settings\temp\hulatoosetup.exe

Digital Signature
Signed by:
HulaToo

Authority:
VeriSign, Inc.

Valid from:
3/19/2014 7:00:00 AM

Valid to:
3/20/2015 6:59:59 AM

Subject:
CN=HulaToo, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=HulaToo, 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:
089F9EDFF3BE5DAC5EE5E228073DBDC4

File PE Metadata
Compilation timestamp:
12/6/2009 5:52:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:keQeX2nb1s15AB/G/8/3D0Fw/tN8dkmLtpHHHrh7i4zkI:keQ5nb6F8/z0FmcLbH13kI

Entry address:
0x30CB

Entry point:
60, E8, 00, 00, 00, 00, 5B, 81, EB, D0, 48, 19, 01, 83, EC, 74, 8B, EC, 8B, 83, AB, 4B, 19, 01, 89, 45, 00, 8B, 83, B3, 4B, 19, 01, 03, 45, 00, 89, 45, 2C, 8B, 83, B7, 4B, 19, 01, 03, 45, 00, 89, 45, 30, C7, 45, 14, 00, 00, 00, 00, C7, 45, 18, 00, 00, 00, 00, C7, 45, 1C, 00, 00, 00, 00, 8B, 45, 14, FF, 45, 14, 66, 33, C9, 8A, 8C, 03, FF, 4B, 19, 01, 84, C9, 74, 7A, 8B, 45, 1C, 66, 01, 4D, 1C, 03, C3, 05, 13, 4C, 19, 01, 50, 8B, 45, 2C, FF, 10, 85, C0, 0F, 84, 5E, 02, 00, 00, 89, 45, 10, 8B, 45, 1C, 03, C3...
 
[+]

Entropy:
7.8606

Packer / compiler:
ASPack v1.08.04

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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