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firefox_install.exe

Mozilla Firefox 2015

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 firefox_install.exe by Download Assistant 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 AirInstaller Download Manager installer. With this installer, users are expecting to download the free Mozilla Firefox web browser but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
Download Assistant  (signed and verified)

Product:
Mozilla Firefox 2015

Version:
3.0.0.105

MD5:
c2a212b4934d8090c60546c36dc98b15

SHA-1:
eadbad087ca3f7c799a3a1f706c41f6f0141704e

SHA-256:
2689a97be906034013783eca12dd8143b7838097cfb7ec005f68d3b0e4ccb38a

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
11/28/2024 12:36:22 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.DownloadAssistant.Bundler (M)
16.2.14.2

File size:
1.1 MB (1,104,440 bytes)

Product version:
3.0.0.105

Copyright:
(c) Download Assistant

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

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

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
6/10/2015 7:00:00 PM

Valid to:
6/10/2016 6:59:59 PM

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:
04A0CF6AE167D0090DFCD45981346775

File PE Metadata
Compilation timestamp:
1/30/2013 9:21:56 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:2xG3HCP7/+mkGjGKoOKtbxJWu85GCpGNUUU+R:b3C9kQlK7J8p4U+R

Entry address:
0x113BC

Entry point:
55, 8B, EC, 83, C4, A4, 53, 56, 57, 33, C0, 89, 45, C4, 89, 45, C0, 89, 45, A4, 89, 45, D0, 89, 45, C8, 89, 45, CC, 89, 45, D4, 89, 45, D8, 89, 45, EC, B8, 2C, 00, 41, 00, E8, E8, 51, FF, FF, 33, C0, 55, 68, 9E, 1A, 41, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 5A, 1A, 41, 00, 64, FF, 32, 64, 89, 22, A1, 48, 5B, 41, 00, E8, 16, D8, FF, FF, E8, 65, D3, FF, FF, 80, 3D, DC, 2A, 41, 00, 00, 74, 0C, E8, 2B, D9, FF, FF, 33, C0, E8, 80, 32, FF, FF, 8D, 55, EC, 33, C0, E8, E2, A3, FF, FF, 8B, 55, EC, B8, 50, 86...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
65.5 KB (67,072 bytes)

The file firefox_install.exe has been seen being distributed by the following URL.

http://download.free-browsers.co/v2/click/37257871/?d=http://uk.free-browser.co/downloads/firefox/firefoxinstall_es.exe&key=d4edcd69cf05068cfd69d4f12ba6902596e1ee930bbc423bf83d507eb7a83491&sid=FIREFOX&uid=1ANALYTICS558f77795fc7e&affiliate_image=&product_image=http://au.free-browser.co/graphics/firefox/product_image_new_2015.png&n=Mozilla Firefox 2015&filename=firefox_install&done_url=http://free-browser.co/.../&cancel_url=http://free-browser.co/.../?error=1

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