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Mozilla-thunderbird.exe

Mozilla-thunderbird.

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 Mozilla-thunderbird.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 installer is marketed through download protals and search ads as Mozilla Thunderbird but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
DownloadAsst_New  (signed by Download Assistant)

Product:
Mozilla-thunderbird.

Version:
3.0.0.95

MD5:
f4975b796ee643e3456903adce8f6711

SHA-1:
1372f9357427544b30abf5d4145c0edde1e08f29

SHA-256:
fc4f15ef88e24583f9ae47c222a57c69428f3ae50316c0082a8d3f64b302c402

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:
5/11/2024 3:11:55 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software (M)
16.7.16.8

File size:
960.2 KB (983,224 bytes)

Product version:
3.0.0.95

Copyright:
(c) DownloadAsst_New

Original file name:
Mozilla-thunderbird.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

Common path:
C:\users\{user}\downloads\mozilla-thunderbird.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
2/15/2015 7:00:00 PM

Valid to:
2/16/2016 6:59:59 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:
4/28/2015 10:44:15 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:eZlAQ+qgcbQqaYV+SSTdXWJHtcvmNku5GhZfmVC3qas:IlAbP5YV+SSlWJ2e9QmwTs

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:
7.0535

Developed / compiled with:
Microsoft Visual C++

Code size:
574.5 KB (588,288 bytes)

The file Mozilla-thunderbird.exe has been seen being distributed by the following URL.

http://download.program-assist.com/v2/click/b8152820/?d=http://www.installer-assist.com/download/thunderbird.exe&key=55ed610be06ca51f68f2c4017dbba83bbb4b22f77316d7204e5516c0cf8c992e&sid=Mozilla-thunderbird.&uid=Mozilla-thunderbird.&affiliate_image=http://download-assist.com/admin/.../Mozilla Thunderbird_i.png&product_image=http://download-assist.com/admin/.../Mozilla Thunderbird_p.png&n=Mozilla-thunderbird.&filename=Mozilla-thunderbird

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