chrome_installer.exe

Google Chrome Browser

Download Assistant

This is part of the Air Installer, a download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application chrome_installer.exe by Download Assistant has been detected as adware by 23 anti-malware scanners. The program is a setup application that uses the AirInstaller Download Manager installer. During install, it bundles potentially unwanted software on a user's computer at the same time without adequate consent. 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:
DownloadAsst_New  (signed by Download Assistant)

Product:
Google Chrome Browser

Version:
3.0.0.104

MD5:
3408114b717851d49f72ff74b20fd85b

SHA-1:
4fe77ec5e464908ac590eb32d998c11ecaa94040

SHA-256:
a50512140273ac1f36674b4dbbe5832669a3c718112bcdecda35a934093c5a30

Scanner detections:
23 / 68

Status:
Adware

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

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:
11/22/2017 7:36:23 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.AirInstaller.5
5627563

AhnLab V3 Security
PUP/Win32.Bundler
2015.06.02

Avira AntiVirus
TR/Crypt.XPACK.Gen
7.11.30.172

avast!
Win32:Adware-CKC [PUP]
150531-1

AVG
Generic
2016.0.3091

Bitdefender
Gen:Variant.Application.Bundler.AirInstaller.5
1.0.20.765

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.DownloadAssistant.S
22314

Dr.Web
Trojan.Vittalia.30
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.AirInstaller
10.0.0.5366

ESET NOD32
Win32/DownloadAssistant.A potentially unwanted application
7.0.302.0

F-Secure
Riskware.Gen:Variant.Application.Bundler
5.14.151

G Data
Gen:Variant.Application.Bundler.AirInstaller
15.6.25

K7 AntiVirus
Unwanted-Program
13.204.16108

K7 Gateway Antivirus
Unwanted-Program
13.204.16110

Malwarebytes
PUP.Optional.BundleInstaller.A
v2015.06.02.11

MicroWorld eScan
Gen:Variant.Application.Bundler.AirInstaller.5
16.0.0.459

NANO AntiVirus
Trojan.Win32.Vittalia.dqfrig
0.30.24.1636

Norman
Gen:Variant.Application.Bundler.AirInstaller.5
03.12.2014 13:20:04

Panda Antivirus
Trj/Genetic.gen
15.06.02.11

Reason Heuristics
PUP.Air Software.Bundler
15.6.2.11

Rising Antivirus
PE:Malware.XPACK-HIE/Heur!1.9C48
23.00.65.15531

VIPRE Antivirus
Threat.4782985
40552

File size:
960.2 KB (983,224 bytes)

Product version:
3.0.0.104

Copyright:
(c) DownloadAsst_New

Original file name:
chrome_installer.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

Common path:
C:\users\{user}\downloads\chrome_installer.exe

Digital Signature
Authority:
Symantec Corporation

Valid from:
2/16/2015 11:00:00 AM

Valid to:
2/17/2016 10:59:59 AM

Subject:
CN=Download Assistant, O=Download Assistant, L=Victoria, S=British Columbia, C=CA

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
3784E4CAC60231ED82FD7E8E845E8CE3

File PE Metadata
Compilation timestamp:
5/25/2015 7:04:31 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:b9EA1ySh3CBaXASEKS8yLpvcXTtfQP8taJz1+:HUYqZvsTtfQFJzU

Entry address:
0x126A

Entry point:
55, 8B, EC, 83, EC, 10, 53, 56, 57, 6A, 00, FF, 15, 08, 10, 49, 00, 8B, F8, 33, D2, 8B, CF, 8B, 5F, 3C, 03, DF, 2B, 05, 1C, 10, 40, 00, 89, 45, F4, 1B, D2, F7, D8, 89, 55, F8, 0F, B7, 73, 14, 83, D2, 00, F7, DA, 89, 75, F0, 52, 8B, 93, A0, 00, 00, 00, 50, 8B, 44, 1E, 24, 03, 05, 28, 10, 40, 00, 50, FF, B3, A4, 00, 00, 00, E8, 88, FD, FF, FF, 8B, 54, 1E, 28, 83, C4, 10, A1, 28, 10, 40, 00, 2B, D0, 83, FA, 01, 76, 0D, 8B, 4C, 1E, 24, 03, C8, 03, CF, E8, F2, FE, FF, FF, A1, 20, 10, 40, 00, 83, C6, 40, 03, F3...
 
[+]

Entropy:
7.0552

Developed / compiled with:
Microsoft Visual C++

Code size:
574 KB (587,776 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to useast.gtdlrfwd.com  (104.131.2.201:80)

TCP (HTTP):
Connects to shaynesherman.com  (69.65.38.117:80)

TCP (HTTP):
Connects to new-york-2.cdn77.com  (92.242.140.21:80)

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