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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 15 anti-malware scanners. The program is a setup application that uses the Tightrope WebInstall installer. The installer is marketed through download protals and search ads as Google's Chrome web browser but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Zoobam  (signed and verified)

MD5:
2d12414d616b1c728bb0a34f2b4bd917

SHA-1:
6d334d84723fcb9d6561c7915479aa08f71277b3

SHA-256:
abccb45ed356193e97058413fde8a618daf1e1655326b2fb570840c5a6d0aa9b

Scanner detections:
15 / 68

Status:
Adware

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
12/27/2024 5:53:56 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.Downware
2015.01.02

Avira AntiVirus
ADWARE/Adware.Gen
7.11.198.252

AVG
Generic
2016.0.3242

Clam AntiVirus
Win.Adware.Downloadadmin
0.98/19867

Dr.Web
Adware.Downware.2220
9.0.1.05190

ESET NOD32
Win32/DownloadAdmin.H potentially unwanted application
7.0.302.0

G Data
Win32.Application.DownloadAdmin
15.1.24

IKARUS anti.virus
Trojan.Dropper
t3scan.1.8.5.0

K7 AntiVirus
Unwanted-Program
13.188.14496

Malwarebytes
PUP.Optional.DownloadAdmin
v2015.01.01.10

NANO AntiVirus
Riskware.Win32.Downware.djahkt
0.30.0.64448

Sophos
PUA 'DownloadAdmin' (of type Adware)
5.09

Vba32 AntiVirus
Downloader.Agent
3.12.26.3

VIPRE Antivirus
Threat.4783369
35418

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:
10/15/2014 9:27:59 PM

Valid to:
10/15/2017 9:27:59 PM

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 11:29:31 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:0xpJfslZtuaVd9lpmhwQbift489IVGD4xJFl6Xqb5Kbmkg8SUt:Ip9sVuaVdvgVbmgGDijyikg5c

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 3 URLs.

http://files4.file-mirror.info/download/.../dl?bc=1086440&pid=topvideosoft&brand=topvideosoft.com&s=ytdforim&c=toplink&country=US&cb=1891507566&filename=chrome-update.exe&productKey=pwhux3komm3645q6z3zvgdod6ug2bbpk&osName=Windows&osVersion=8.1&browserName=Chrome&browserVersion=39&zTmp=1

http://files5.fastdownload3.com/dl?bc=1086440&c=toplink&s=chrome-popup&filename=chrome-update.exe&productKey=pwhux3komm3645q6z3zvgdod6ug2bbpk&zTmp=1

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

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