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free_download.exe

Download Manager

Air Software

It uses the Air Installer distribution platform (a pay-per-install monetization download manager) to bundle unwanted software such as adware and browser toolbars during setup. The application free_download.exe by Air Software has been detected as adware by 18 anti-malware scanners. The program is a setup application that uses the AirInstaller Download Manager installer. The file has been seen being downloaded from dl.airdwnlds.com.
Publisher:
AirInstaller Inc.  (signed by Air Software)

Product:
Download Manager

Version:
2.0.3.33

MD5:
9a91bed1545da7918e3839b944d026fe

SHA-1:
9922885f7ab1f9ecafc9acb2aac2b93602ae32aa

SHA-256:
6b2f050446109169844fcd8a5eb5f060e66aad70f9641633c9fd33aa8880c99b

Scanner detections:
18 / 68

Status:
Adware

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:
4/19/2024 7:31:16 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.AirAd
7.1.1

Avira AntiVirus
Adware/AirAdInstaller.F
7.11.156.52

avast!
Win32:Adware-CAH [PUP]
2014.9-151230

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.AirAdInstaller.B
18645

Dr.Web
Adware.Downware.897
9.0.1.0364

ESET NOD32
Win32/AirAdInstaller.A potentially unwanted application
9.7.0.302.0

F-Prot
W32/AirInstall.A.gen
v6.4.6.5.141

G Data
Win32.Adware.Airadinstaller
15.12.24

IKARUS anti.virus
PUA.AirAdInstaller
t3scan.1.8.3.0

K7 AntiVirus
Unwanted-Program
13.198.15087

Malwarebytes
PUP.Optional.AirInstaller
v2015.12.30.10

Panda Antivirus
Adware/AirInstaller
15.12.30.10

Quick Heal
Adware.AirAdInstaller.I5
12.15.14.00

Reason Heuristics
PUP.Air Software.AirSoftware.Bundler (M)
15.12.30.10

Rising Antivirus
PE:PUF.Airinstall!1.9C4C
23.00.65.151228

Sophos
AirInstaller
4.98

VIPRE Antivirus
Threat.4782985
29708

File size:
2.1 MB (2,207,824 bytes)

Product version:
2.0.3.33

Copyright:
(c) AirInstaller. All rights reserved.

Original file name:
AirInstaller.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

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

Digital Signature
Signed by:
Air Software

Authority:
VeriSign, Inc.

Valid from:
2/29/2012 4:00:00 PM

Valid to:
3/1/2013 3:59:59 PM

Subject:
CN=Air Software, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Air Software, L=Victoria, S=British Columbia, C=CA

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:
36D5AA8967E82240D5AFEC2F301B54ED

File PE Metadata
Compilation timestamp:
1/24/2013 11:55:39 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:f/ZzlCfYAuLlDh+EbJoKzpjhcgnNuCyIr2r5+hKuk4mwmY1PFpzGvVILAyefaMm+:BlsklDhnFoKz/cinr2r5+QYmwmYrpSvZ

Entry address:
0x14C6C7

Entry point:
E8, DA, 93, 00, 00, E9, 89, FE, FF, FF, 3B, 0D, B0, 5D, 5E, 00, 75, 02, F3, C3, E9, 61, 94, 00, 00, 8B, FF, 55, 8B, EC, 8B, 45, 14, 56, 85, C0, 74, 41, 83, 7D, 08, 00, 75, 13, E8, E8, 22, 00, 00, 6A, 16, 5E, 89, 30, E8, CF, 96, 00, 00, 8B, C6, EB, 2A, 83, 7D, 10, 00, 74, E7, 39, 45, 0C, 73, 0E, E8, CA, 22, 00, 00, 6A, 22, 59, 89, 08, 8B, F1, EB, DE, 50, FF, 75, 10, FF, 75, 08, E8, E5, 11, 00, 00, 83, C4, 0C, 33, C0, 5E, 5D, C3, 8B, FF, 55, 8B, EC, 8B, 45, 08, 56, 8B, F1, C6, 46, 0C, 00, 85, C0, 75, 63, E8...
 
[+]

Entropy:
6.4904

Code size:
1.5 MB (1,581,568 bytes)

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

http://dl.airdwnlds.com/get/click/.../?filename=free_download

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