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setup.exe

Microsoft .NET Framework 2016

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 software.softwarerotate5.com.
Publisher:
Download Assistant  (signed and verified)

Product:
Microsoft .NET Framework 2016

Version:
3.0.0.156

MD5:
cbb247063464f8e4dd5471373d34f757

SHA-1:
1426f2aa275caece025c670e5a4daee77a773345

SHA-256:
0e5961d6e27161b71df53e35da6e341df5ef9edc0ecd1ad349f791c3780ecb97

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:
11/15/2024 11:30:42 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.5.22.14

File size:
1.1 MB (1,137,344 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\temp\{random}.tmp\rk5eriku\setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
5/2/2016 7:00:00 PM

Valid to:
8/1/2017 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:
088066A3A015128F544F3E16DC53BCE8

File PE Metadata
Compilation timestamp:
1/30/2013 8:21:56 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:OxGzW/KW0Kc1ApGO36h93wavO2WZPFevU500LpbuiEJaku:zi/yGpGphpLvUm0LYiEJaku

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:
6.9627

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://software.softwarerotate5.com/v2/click/528c96da/?affiliate_image=http://www.softwaredownloadr.com/.../microsoftnetframework40.png&cancel_url=&d=http://cdn.downloadfree2.com/software/microsoftnetframework.exe&done_url=&filename=Microsoft .NET Framework Setup&key=a8377b3be3f629f0f15a075024a79fcedd1e8f8577775b4d517ee511d0410d02&n=Microsoft .NET Framework 2016&product_image=http://www.softwaredownloadr.com/.../microsoftnetframework85.png&sid=SoftwareDownloadr-Y-USA-microsoftnetframework-&uid=&uao=TW96aWxsYS81LjAgKFdpbmRvd3MgTlQgNi4xKSBBcHBsZVdlYktpdC81MzcuMzYgKEtIVE1MLCBsaWtlIEdlY2tvKSBDaHJvbWUvNTAuMC4yNjYxLjEwMiBTYWZhcmkvNTM3LjM2&scid=3fec26ee-2025-11e6-925b-0401bb479d01

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