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libreoffice_setup.exe

LibreOffice

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 libreoffice_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. The file has been seen being downloaded from chrome.downloadlod.com.
Publisher:
Download Assistant  (signed and verified)

Product:
LibreOffice

Version:
3.0.0.154

MD5:
d3a52b1fcad9229cf0a94a131a4adbd0

SHA-1:
272650214558a2b8f621cde4811a466fe2f5eccd

SHA-256:
83c3840c19bbc0ee434614c7449e370ec230ab2f6b31993c211d05a52284b626

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
12/26/2024 1:19:48 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.5.8.3

File size:
1.1 MB (1,138,392 bytes)

Product version:
3.0.0.154

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}\libreoffice_setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
4/14/2016 2:00:00 AM

Valid to:
7/15/2017 1:59:59 AM

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:
3179370BECD0CB49DB3E6431A0C87799

File PE Metadata
Compilation timestamp:
1/30/2013 3:21:56 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:BxGPcJqyI0idgUT83XzB8PxYHLx4wW+3jZ963Dn1iKkEJakD:6UJrYTlPxYuWN962EJakD

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 libreoffice_setup.exe has been seen being distributed by the following URL.

http://chrome.downloadlod.com/v2/click/eg9huyf4/?affiliate_image=http://www.downloadlod.com/down/.../images/Libreoffice.png&d=http://server2.downloadlod.com/files/libreoffice.msi&filename=LibreOffice_Setup&key=d90f8e0c21882256de42940be7e289d4425d544bb8fac6b298562257a8fef737&n=LibreOffice&product_image=http://www.downloadlod.com/down/.../images/01.png&sid=lod/.../Libreoffice&uid=&uao=TW96aWxsYS81LjAgKFdpbmRvd3MgTlQgNi4zOyBXT1c2NCkgQXBwbGVXZWJLaXQvNTM3LjM2IChLSFRNTCwgbGlrZSBHZWNrbykgQ2hyb21lLzQ5LjAuMjYyMy4xMTIgU2FmYXJpLzUzNy4zNg__&scid=466e1e5e-06ef-11e6-9dd0-0401ac007701

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