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setup_adobe_flash_player.exe

Adobe Flash Player

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 setup_adobe_flash_player.exe by Download Assistant has been detected as adware by 22 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.
Publisher:
Download Assistant  (signed and verified)

Product:
Adobe Flash Player

Version:
3.0.0.91

MD5:
1d43996ab04c14154f4adb0821978217

SHA-1:
e767841b04d29d9454fb90c62534078ebab229df

SHA-256:
44d8619ef533d0b19f57a4c24b3a11f0ce57604f98083345abf589e0ff24581b

Scanner detections:
22 / 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:
1/13/2025 12:29:04 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.AirInstaller.5
353

AhnLab V3 Security
PUP/Win32.Bundler
2015.06.15

avast!
Win32:Adware-CKC [PUP]
2014.9-160217

AVG
Generic
2017.0.2831

Bitdefender
Gen:Variant.Application.Bundler.AirInstaller.5
1.0.20.240

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.DownloadAssistant.S
22457

Dr.Web
Trojan.Vittalia.30
9.0.1.048

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.AirInstaller
8.16.02.17.08

ESET NOD32
Win32/DownloadAssistant.A potentially unwanted application
10.7.0.302.0

F-Secure
Riskware.Gen:Variant.Application.Bundler
11.2016-17-02_4

G Data
Gen:Variant.Application.Bundler.AirInstaller
16.2.25

IKARUS anti.virus
PUA.DownloadAssistant
t3scan.1.8.9.0

K7 AntiVirus
Unwanted-Program
13.205.16242

Malwarebytes
PUP.Optional.BundleInstaller.A
v2016.02.17.08

MicroWorld eScan
Gen:Variant.Application.Bundler.AirInstaller.5
17.0.0.144

NANO AntiVirus
Trojan.Win32.Vittalia.dqfrig
0.30.24.2086

Norman
Gen:Variant.Application.Bundler.AirInstaller.5
11.20160217

Panda Antivirus
Trj/Genetic.gen
16.02.17.08

Reason Heuristics
PUP.Air Software.DownloadAssistant.Bundler (M)
16.2.17.8

Rising Antivirus
PE:Malware.XPACK-HIE/Heur!1.9C48
23.00.65.16215

VIPRE Antivirus
Threat.4782985
40828

File size:
958.2 KB (981,168 bytes)

Product version:
3.0.0.91

Copyright:
(c) Download Assistant

Original file name:
setup_adobe_flash_player.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

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

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
2/15/2015 6:00:00 PM

Valid to:
2/16/2016 5:59:59 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:
3784E4CAC60231ED82FD7E8E845E8CE3

File PE Metadata
Compilation timestamp:
4/12/2015 9:53:19 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:Pzz+U0AodCchI+EK4SjnDsL9KZKKyntolV2REU9reNdudjh:bPp+KSjnDshk0AYNyNYdjh

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:
7.0434

Developed / compiled with:
Microsoft Visual C++

Code size:
574.5 KB (588,288 bytes)

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

http://files.1download.io/.../download_flash_player_17.php?tr=b&flag=us&cid=8444a671-8ef1-7f58-ef23-7612e9861c0f&prd=&cmp=Flash Player&adid=7592942638&kw=flash&qs=flash&mt=e&sl=s0&tv=v1.04b&geo=us

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