home

setup.exe

File Downloader

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. The file has been seen being downloaded from start.fastenyourdata.com.
Publisher:
Download Assistant  (signed and verified)

Product:
File Downloader

Version:
3.0.0.156

MD5:
cbc25eedb1ed4121adca5ccec84ebb80

SHA-1:
fdb8524255b9367dea9b57bbd88d721db9e547b5

SHA-256:
c3d0deb31b46aca93a378e344aa91657c9649283217682bc2ccc44e0556ecbad

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:
12/26/2024 3:25:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.5.26.9

File size:
1.1 MB (1,144,704 bytes)

Product version:
3.0.0.156

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}\setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
5/3/2016 2:00:00 AM

Valid to:
8/2/2017 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:
088066A3A015128F544F3E16DC53BCE8

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:ExG/3NB3y+WS1H7n2ZsHCdgMHDSbWGgEi+8iUfyHoqCEJakcQ:pzC9Yr2GADwmN+oEeEJakcQ

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://start.fastenyourdata.com/1464176761cXc9WGdkWGY9eXk0NXhZd3Y9KFkmY29vazB4LjB3QTB3QVppKm5qYW9uO1hqaDB3QWFtWlpyVm1aMHdBQWRnWjo anJpZ2pWWVptO1pzWkBmWnQmMlczV3g0NVozM3g1M3dYeFkyMTMxMzNYMjNheXpZNVl3MjVWWVl5NVl6WlYyM3pWelpXWTNZWVoyMlhhNXdaMkBuZFkmQHBkWSZAVmFhZGdkVm9aOmRoVmJaJmNvb2sweC4wd0Ewd0FaaSpuamFvbjtYamgwd0FhbVpaclZtWjB3QWdqYmo7a2liQGttallwWG86ZGhWYlomY29vazB4LjB3QTB3QVppKm5qYW9uO1hqaDB3QWFtWlpyVm1aMHdBa21qWXBYbztraWJAaSZBZGdaXj5qcmlnalZZWm1AYWRnWmlWaFomblpvcGs=

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