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skype_setup.exe

SetupManager.exe

Optimum Installer

This adware bundler is distributed through Adknowledge's advertising supported software managers. The application skype_setup.exe, “Skype Setup ” by Optimum Installer 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 Adknowledge Fusion installer. The file has been seen being downloaded from downloader.downloadinfo.co.
Publisher:
SetupManager  (signed by Optimum Installer)

Product:
SetupManager.exe

Description:
Skype Setup

Version:
3.4.8

MD5:
62495adecc54c98d3eb66b5359a82e13

SHA-1:
2b39f879bee07f715d7d8433c656cd92610e864d

SHA-256:
c9b75e563f0919bee7e5f39c7ddb2158dd124e343f5206c0aedcefb09cefc9eb

Scanner detections:
1 / 68

Status:
Adware

Explanation:
This installer bundles various adware prorgams that may include toolbars and web browser advertising injectors/extensions.

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 12:23:45 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Adknowledge.OptimumI.Bundler (M)
16.6.20.8

File size:
863.3 KB (884,008 bytes)

Product version:
3.4.8

Original file name:
Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

Common path:
C:\users\{user}\downloads\skype_setup.exe

Digital Signature
Signed by:
Optimum Installer

Authority:
VeriSign, Inc.

Valid from:
10/10/2012 8:00:00 PM

Valid to:
11/7/2013 6:59:59 PM

Subject:
CN=Optimum Installer, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Optimum Installer, L=Kansas City, S=Missouri, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
7C5F27B776ADBBB7943F700066A490BF

File PE Metadata
Compilation timestamp:
5/22/2013 10:37:28 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
24576:pI9Of/lpHBhI/cO9iazWzSboa9bZgWXrGtpHK5HXjhoXi:j271boa9b5CR+HXNoXi

Entry address:
0x56052

Entry point:
E8, 94, F1, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 6A, 00, FF, 75, 14, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 0D, F2, 00, 00, 83, C4, 14, 5D, C3, FF, 35, 5C, 0D, 4B, 00, E8, A9, 4C, 00, 00, 59, 85, C0, 74, 02, FF, D0, 6A, 19, E8, 62, AE, 00, 00, 6A, 01, 6A, 00, E8, 0C, F5, 00, 00, 83, C4, 0C, E9, ED, F3, 00, 00, 8B, FF, 55, 8B, EC, 8B, 45, 08, 66, 8B, 08, 40, 40, 66, 85, C9, 75, F6, 2B, 45, 08, D1, F8, 48, 5D, C3, 8B, FF, 55, 8B, EC, 8B, 55, 08, 53, 56, 57, 33, FF, 3B, D7, 74, 07, 8B, 5D, 0C, 3B...
 
[+]

Entropy:
6.7287

Code size:
476 KB (487,424 bytes)

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

http://downloader.downloadinfo.co/download.php?id=e7879f4e498e9c19a16c07d3a2c09ebcc6581e23&z=1&p=eyJweSI6ImRpIiwicnMiOiJnb29nbGUiLCJydCI6InNlYXJjaCIsImMiOiJ1cyIsIm8iOiJ3aW52IiwiYiI6ImNoMjYiLCJ1X2lkIjoiZGlfNTE5ZDE1MzA4YTllNDAuMjU1MjM1OTgiLCJwYV9pZCI6IjEiLCJzdF9pZCI6IjAiLCJzcF9pZCI6IjAwMDAtMDAwMCIsInRzIjoxMzY5MjQ5MDcyLCJrdyI6InNreXBlIiwiY3UiOiJza3lwZSIsImNhIjpudWxsfQ==

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