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skype_installer.exe

Software

Geryon Ads S.L.

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application skype_installer.exe, “Software Setup ” by Geryon Ads S.L has been detected as adware by 10 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions.
Publisher:
Geryon Ads S.L.  (signed and verified)

Product:
Software

Description:
Software Setup

MD5:
dfc4359c5e225b7a3733c336ccdba612

SHA-1:
79281b5b941223a4d117ed70d2f97ac40b647490

SHA-256:
da9675148330efb25dff19758b5ab987fc6053df58cd03188777af3b02ef6af2

Scanner detections:
10 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
5/5/2024 1:10:12 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.198.192

AVG
Generic
2016.0.3050

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.15713

ESET NOD32
Win32/InstallCore.TT (variant)
9.10948

K7 AntiVirus
Unwanted-Program
13.188.14496

McAfee
Artemis!DFC4359C5E22
5600.6706

Reason Heuristics
PUP.GeryonAds.Installer (M)
15.7.13.6

Sophos
Generic PUA HJ
4.98

Trend Micro House Call
Suspicious_GEN.F47V1210
7.2.194

VIPRE Antivirus
InstallCore
36242

File size:
764.4 KB (782,776 bytes)

Product version:
4.7

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
Geryon Ads S.L.

Authority:
Thawte, Inc.

Valid from:
6/16/2014 3:00:00 AM

Valid to:
6/17/2015 2:59:59 AM

Subject:
CN=Geryon Ads S.L., OU=IT, O=Geryon Ads S.L., L=Barcelona, S=Barcelona, C=ES

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

Serial number:
71F910550D2DD2713679787B12FF2EA0

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:+OoCxpiQKXANpvP0bJrWLPtyxNaYRSx5+c7eI6iXf0YWz5IGhxXmyAuR3RfHBrNw:+h0xWAvsrCPoNh8bhoiMp+GjnjVhrN0R

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.8996

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

http://softwareforfree.net/.../sk2014.php

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