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winrar.exe

WinRAR

Download Manager

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.exe, “WinRAR ” by Download Manager 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. The installer is marketed through download protals and search ads as WinRAR archiver but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
DownloadManagercerts   (signed by Download Manager)

Product:
WinRAR

Description:
WinRAR

Version:
2.0.83.0

MD5:
eb43402b18109b3ef5714d4dd305ad49

SHA-1:
c36b5de381a5951cae8f81b4ddd6d6d458a66edd

SHA-256:
00532055d5b3306264315ac8c1b21537171f55c068dbc87600b7e079517c7b89

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
4/29/2024 8:16:22 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.5.25.2

File size:
914.8 KB (936,792 bytes)

Product version:
2.0.83.0

Copyright:
(c) DownloadManagercerts

Original file name:
setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

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

Digital Signature
Signed by:
Download Manager

Authority:
VeriSign, Inc.

Valid from:
6/10/2014 1:00:00 AM

Valid to:
7/12/2017 12:59:59 AM

Subject:
CN=Download Manager, O=Download Manager, 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:
6771A39C2739AF7082C1C8D8234BB168

File PE Metadata
Compilation timestamp:
9/19/2014 5:28:49 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:e5jidBzc/kf2gs5VKq2w/Sa+/dxvrAuCmqNe4naobjq6BNhyFRR9HMQHnwU9HH:e5ufuvg//vFePjTB8RR9HMQHn3ZH

Entry address:
0x2A24F0

Entry point:
60, BE, 00, F0, 5C, 00, 8D, BE, 00, 20, E3, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Entropy:
7.8740

Packer / compiler:
UPX 2.90LZMA

Code size:
848 KB (868,352 bytes)

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

http://www.installer-assist.com/.../wrar501.exe

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