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chrome-update.exe

Zoobam

This is the Tightrope WebInstall which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application chrome-update.exe by Zoobam has been detected as adware by 25 anti-malware scanners. The program is a setup application that uses the Tightrope WebInstall installer. This program installs potentially unwanted software on your PC at the same time as the software you are trying to install, without adequate consent. With this installer, users are expecting to download Google's Chrome web browser but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
Zoobam  (signed and verified)

MD5:
7e0ab92f42ec1ee293222038f53b77f7

SHA-1:
f2df8f3f387928a06463904775dee34ab4c455fa

SHA-256:
f8566ef60e37ee955aa2729b2db96d7b66751a2416adc1da92a1721918ff813e

Scanner detections:
25 / 68

Status:
Adware

Explanation:
Bundles additional software, mostly toolbars and other potentially unwanted applications using the Vittalia monitization installer.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/29/2024 1:00:10 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Bundler.KJ
6750265

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.Downware
2014.10.12

Avira AntiVirus
ADWARE/Adware.Gen
7.11.30.172

avast!
Win32:Adware-CIX [PUP]
150129-1

AVG
Generic
2016.0.3177

Bitdefender
Application.Bundler.KJ
1.0.20.335

Clam AntiVirus
Win.Adware.Downloadadmin
0.98/19501

Comodo Security
Application.Win32.DownloadAdmin.ANGL
21334

Dr.Web
Trojan.Vittalia.14
9.0.1.05190

Emsisoft Anti-Malware
Application.Bundler.KJ
9.0.0.4799

ESET NOD32
Win32/DownloadAdmin.H potentially unwanted application
7.0.302.0

F-Prot
W32/S-92ce39bf
v6.4.7.1.166

F-Secure
Adware:W32/WebInstallBundle
11.2015-08-03_1

G Data
Application.Bundler.KJ
15.3.25

herdProtect (fuzzy)
variant of horizon-setup.exe (Adware)
2015.6.14.16

K7 AntiVirus
Unwanted-Program
13.183.13642

Malwarebytes
PUP.Optional.DownloadAdmin
v2015.03.08.08

MicroWorld eScan
Application.Bundler.KJ
16.0.0.201

NANO AntiVirus
Riskware.Win32.Downware.djahkt
0.30.0.296

Reason Heuristics
PUP.Bundler.Tightrope
15.3.8.8

Sophos
Download Admin
4.98

Total Defense
Win32/Tnega.IQCCUAC
37.0.11484

Vba32 AntiVirus
Downloader.Agent
3.12.26.3

VIPRE Antivirus
Threat.4150696
33706

File size:
825.4 KB (845,224 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Tightrope WebInstall (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\chrome-update.exe

Digital Signature
Signed by:
Zoobam

Authority:
GoDaddy.com, Inc.

Valid from:
10/16/2014 3:27:59 AM

Valid to:
10/16/2017 3:27:59 AM

Subject:
CN=Zoobam, O=Zoobam, L=Kirkland, S=Washington, C=US

Issuer:
CN=Go Daddy Secure Certificate Authority - G2, OU=http://certs.godaddy.com/repository/, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
4EA9D31E75E043

File PE Metadata
Compilation timestamp:
7/15/2014 5:29:31 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:0xpJfslZtuaVd9lpmhwQbift489IVGD4xJFl6Xqb5Kbmkg8S3:Ip9sVuaVdvgVbmgGDijyikg53

Entry address:
0x3345

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, B0, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, C0, 70, 40, 00, 53, FF, 15, 88, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, 2E, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 43, 74, 40, 00, FF, 15, 64, 71, 40, 00, 68, 38, 74, 40, 00, 68, C0, 33, 42, 00, E8, 1F, 24, 00, 00, FF, 15, BC, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 0D, 24, 00, 00...
 
[+]

Entropy:
7.4926

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file chrome-update.exe has been seen being distributed by the following URL.

http://download7.file-mirror.org/.../chrome-popup.php

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