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winrar_setup.exe

WinRAR

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 winrar_setup.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 WinRAR archiver but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
Download Assistant  (signed and verified)

Product:
WinRAR

Version:
3.0.0.136

MD5:
3ef95a6fa3197a1d295ab86492d50f3f

SHA-1:
a5e4092e78b02fefa61314c4cf0bf613077de71d

SHA-256:
095ecb641842d03595dd37b8b4944633498d586dc1c2be10bbe7bb94e77b80ad

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:
2/25/2025 11:56:26 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software (M)
16.7.31.14

File size:
1.1 MB (1,131,552 bytes)

Product version:
3.0.0.136

Copyright:
(c) Download Assistant

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\winrar_setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
12/2/2015 12:00:00 AM

Valid to:
3/2/2017 11:59:59 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:
04A6D3440F1D06EE9CA4CE2B30C76606

File PE Metadata
Compilation timestamp:
1/30/2013 2:21:56 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:rxGU+EQADR34G5fiXbmA1feYvkPczjoC3nN8USWtncOj:EMQAFAiEfeRPct3Nn1/

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...
 
[+]

Entropy:
6.9578

Developed / compiled with:
Microsoft Visual C++

Code size:
65.5 KB (67,072 bytes)

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

http://downloads.ezdownload.co/v2/click/fd0e7022/?d=http://win-rar.com/fileadmin/winrar-versions/winrar-x64-53b6.exe&n=WinRAR&key=5fb096eb2b72ab595053deb9559d94c5742e982324462044348a286515efa55d&affiliate_image=&product_image=http://ezdownload.co/.../winrar.png&sid=uk-winrar&filename=winrar_setup

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