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net framework 4.5.1.exe

Microsoft .NET Framework

Innovative Systems LLC

The application net framework 4.5.1.exe by Innovative Systems has been detected as adware by 14 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The installer uses the OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from dotnetframework.joydownload.com.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Microsoft .NET Framework

Version:
1.0.0.0

MD5:
69c8e228589dd6ab4da69187bc6f39fa

SHA-1:
969eb64e980b90aefd29796591f968de44abf4f2

SHA-256:
976633414582a8a41e58ab561178512cc0f1c3ebd72a3319d7528f4f41fa9eb7

Scanner detections:
14 / 68

Status:
Adware

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
5/8/2024 9:01:43 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Trojan.Heur.Fu3@xasUt3fi
860

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
APPL/Downloader.Gen
7.11.174.250

AVG
OpenCandy
2015.0.3338

Bitdefender
Gen:Trojan.Heur.Fu3@xasUt3fi
1.0.20.1350

Dr.Web
Threat.Undefined
9.0.1.05190

Emsisoft Anti-Malware
Gen:Trojan.Heur.Fu3@xasUt3fi
14.09.27

ESET NOD32
Win32/JoyDownloader.D potentially unwanted application
7.0.302.0

F-Secure
Gen:Trojan.Heur.Fu3@xasUt3fi
11.2014-27-09_7

G Data
Gen:Trojan.Heur.Fu3@xasUt3fi
14.9.24

Malwarebytes
PUP.Optional.OpenCandy
v2014.09.27.05

McAfee
Artemis!C5E8D0BFF605
5600.6994

MicroWorld eScan
Gen:Trojan.Heur.Fu3@xasUt3fi
15.0.0.810

Reason Heuristics
PUP.InnovativeSystems.R
14.9.27.16

File size:
496.7 KB (508,640 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\net framework 4.5.1.exe

Digital Signature
Signed by:
Innovative Systems LLC

Authority:
Thawte, Inc.

Valid from:
9/19/2014 3:00:00 AM

Valid to:
9/20/2015 2:59:59 AM

Subject:
CN=Innovative Systems LLC, O=Innovative Systems LLC, L=Dnepropetrovsk, S=Dnepropetrovska, C=UA

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
09A91C40EAE34E72CD975B0B218AE4BA

File PE Metadata
Compilation timestamp:
5/20/2013 2:52:48 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:AQnZPvkkRZBlUigBUzl+Gab6cATHHmEnNGsBU32bqu3PB:RZP1E/wXaIHrtU3kfB

Entry address:
0x331F

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, 30, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, BC, 70, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 08, A3, D8, 7A, 7A, 00, E8, A8, 2E, 00, 00, A3, 24, 7A, 7A, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, D0, EE, 79, 00, FF, 15, 7C, 71, 40, 00, 68, 7C, 93, 40, 00, 68, 20, 6A, 7A, 00, E8, 13, 2B, 00, 00, FF, 15, 34, 71, 40, 00, BB, 00, 20, 7B, 00, 50, 53, E8, 01, 2B, 00, 00...
 
[+]

Entropy:
7.8450

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

The file net framework 4.5.1.exe has been seen being distributed by the following URL.

http://dotnetframework.joydownload.com/get_azure_file/wUiS4WnYccXDyCf4UfO5CV530RJ0YyqsWxLzZdbB4bxyszC69Cojlo5JcgW8erC/NXW20gIHbjfZWfusW780yathxM PDE b/CXqTB jqnD8gfDbvNjdkWJNs55ziVZIRjD Xix 18kv9Dn4WGKaQ7hOw4TrND0VMeBmPRNMOa39RHh7asWNLBgonuK9RjQuIY/z2q4/DGOo9h7dl7xmBZivcdClLHta1dPoVal93UgH5tH3jFz5bK53kCSjBcQe5MWxUSaqoZrTkCsqdfEaG9Bifjwxu6GtGRBz2E/.../zVWhsnXLne2RF IwK9tYk8=

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