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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 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. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from chrome.downloadlod.com.
Publisher:
Download Assistant  (signed and verified)

Product:
LibreOffice

Version:
3.0.0.153

MD5:
ffa9fb799297f9af5780e7a0efef659e

SHA-1:
5ffc9de45397edbb533c4d289ac514cde99c26c8

SHA-256:
ef5324c07bffef815a60a5610aaf89c520a98956043274bd925d8d1d18d6aaee

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 1:31:08 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.4.18.7

File size:
1.1 MB (1,141,168 bytes)

Product version:
3.0.0.153

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\temp\{random}.tmp\je4ky0tx\setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
1/26/2016 1:00:00 AM

Valid to:
3/27/2017 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:
1278A8BBE7E82E656B1FD4779E9BC2F0

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:NxGPBCaeIPG9No40c2ectcxhC4/SMbLXjht5wEJak4:GMaeyu10FpbyzhEEJak4

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 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=TW96aWxsYS81LjAgKFdpbmRvd3MgTlQgMTAuMDsgV09XNjQpIEFwcGxlV2ViS2l0LzUzNy4zNiAoS0hUTUwsIGxpa2UgR2Vja28pIENocm9tZS80OC4wLjI1NjQuMTE2IFNhZmFyaS81MzcuMzY_&scid=8bc278b6-e9e3-11e5-bbcc-0401ac006801

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