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skype_setup.exe

TINY INSTALLER

Tiny Installer is a download manager variant from Adknowledge that packages various adware-type offers (toolbar, coupon extensions, utilities) with software distributions. The application skype_setup.exe, “Express Install ” by TINY 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 secure.oinstaller4.com.
Publisher:
Express Install   (signed by TINY INSTALLER)

Product:
Express Install

Description:
Express Install

Version:
3, 7, 1, 0

MD5:
78f9b317afb673ef2c81d8624e760a3b

SHA-1:
d392c0ee88361553bb933c2ea88cc8a7762b9994

SHA-256:
405b21656f00dca7697935aea3ac6f6d25d050187f3bec53e2d2535987f0cc6e

Scanner detections:
1 / 68

Status:
Adware

Explanation:
The Tiny Installer download manager bundles various adware components.

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:
4/20/2024 5:21:04 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Adknowledge (M)
16.8.9.20

File size:
1.7 MB (1,813,288 bytes)

Product version:
3, 7, 1, 0

Copyright:
Copyright (C) 2013 Express Install

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:
TINY INSTALLER

Authority:
VeriSign, Inc.

Valid from:
6/3/2013 1:00:00 AM

Valid to:
6/4/2014 12:59:59 AM

Subject:
CN=TINY INSTALLER, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=TINY INSTALLER, L=Wilmington, S=Delaware, 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:
54C184C0CB6B6510B3582483FC098463

File PE Metadata
Compilation timestamp:
10/25/2013 7:45:41 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
49152:b4jMfEG/6ZskSiunvHXQjcKXRcD7aSNkCLeHiCz:cMfEG/6ZYvgQCcDWSCCy

Entry address:
0x35995

Entry point:
E8, 5E, 8C, 00, 00, E9, 78, FE, FF, FF, 6A, 0C, 68, 78, 4C, 47, 00, E8, C1, 35, 00, 00, 83, 65, E4, 00, 8B, 75, 08, 3B, 35, F8, 3B, 5B, 00, 77, 22, 6A, 04, E8, 61, 8E, 00, 00, 59, 83, 65, FC, 00, 56, E8, C3, 9B, 00, 00, 59, 89, 45, E4, C7, 45, FC, FE, FF, FF, FF, E8, 09, 00, 00, 00, 8B, 45, E4, E8, CD, 35, 00, 00, C3, 6A, 04, E8, 44, 8D, 00, 00, 59, C3, 8B, FF, 55, 8B, EC, 83, 3D, 54, 28, 5B, 00, 00, 75, 18, E8, 99, 81, 00, 00, 6A, 1E, E8, C1, 7F, 00, 00, 68, FF, 00, 00, 00, E8, D7, 4C, 00, 00, 59, 59, A1...
 
[+]

Entropy:
7.1468

Code size:
390 KB (399,360 bytes)

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

http://secure.oinstaller4.com/o/.../Skype_Setup.exe

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