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silverlight setup.exe

Silverlight

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 silverlight 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 a.softwaredownloads2.com.
Publisher:
Download Assistant  (signed and verified)

Product:
Silverlight

Version:
3.0.0.125

MD5:
18d45d9b906bb153280a01620a2df6d8

SHA-1:
1da81f1d2c2347bf8e019efd3cff7ab47cdd1908

SHA-256:
d8b5ca549a720b44166b5c6027375a8aebc964aed2a944968537a6003c8c68d2

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 also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/26/2024 3:37:41 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.3.25.14

File size:
1.1 MB (1,128,288 bytes)

Product version:
3.0.0.125

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}\silverlight setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
6/20/2015 8:00:00 PM

Valid to:
6/20/2016 7:59:59 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:
68A4319BC2FC7C8CEA600E8D68FFA326

File PE Metadata
Compilation timestamp:
1/30/2013 9:21:56 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:8xGPYqwe5cD5AkG1OsjOyHEkWYwenSCb9o2vo:BHdcZG1O/1gSu1o

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...
 
[+]

Entropy:
6.9526

Developed / compiled with:
Microsoft Visual C++

Code size:
65.5 KB (67,072 bytes)

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

http://a.softwaredownloads2.com/v2/click/pn8b7cor/?d=http://software.every-download.com/Silverlight.exe&sid=Silverlight-US&uid=5395069&key=b6c20938e343aa42169414816a156abaaf71280dde9c854f7f8a9689705568d8&affiliate_image=&product_image=https://s3.amazonaws.com/evdlimages/.../product.png&n=Silverlight&filename=Silverlight Setup

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