skype_installer.exe

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 by Geryon Ads S.L has been detected as adware by 8 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. The file has been seen being downloaded from softwaredll.me and multiple other hosts.
Publisher:
Geryon Ads S.L.  (signed and verified)

MD5:
d47f64a59a28b979c91f603b1b634c01

SHA-1:
a388f019965c839ad4b47af23704707eb53d441b

SHA-256:
6833b1fa683b4a951a5a428f58deb30a96ba064c117f8d24ff9a6d91eb846577

Scanner detections:
8 / 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:
12/26/2024 1:16:06 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
7.11.193.202

AVG
Generic
2015.0.3260

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.141215

ESET NOD32
Win32/InstallCore.SO (variant)
8.10851

K7 AntiVirus
Unwanted-Program
13.186.14280

Reason Heuristics
PUP.GeryonAdsSL.P
14.12.15.5

Trend Micro House Call
Suspicious_GEN.F47V1206
7.2.349

VIPRE Antivirus
InstallCore
35578

File size:
783.1 KB (801,944 bytes)

Product version:
1.5

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:

Authority:
Thawte, Inc.

Valid from:
6/16/2014 2:00:00 AM

Valid to:
6/17/2015 1:59:59 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 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:+uFavwrEotIbrW2LwZzb0jjkvXVMe+sbQnpZlV8Q3PqvZwKEx/SuFN11bOUHPp:+uFewFu+awduKMe+Bnp1SBCZh

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, BF, A9, FF, FF, E8, 5E, 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...
 
[+]

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 2 URLs.

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