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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 13 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.biz and multiple other hosts.
Publisher:
Geryon Ads S.L.  (signed and verified)

MD5:
e7aa7d55e757f330e05b72b3d86c2eaf

SHA-1:
636905449c67fbd9083c1d536114827efc1f24ea

SHA-256:
4b97f44c0ebd60cb9b63362e055e60379b3e0ce9ab55e8c8fad1e7ad8bba4bfc

Scanner detections:
13 / 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 1:04:02 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen9
7.11.182.116

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.14112

Dr.Web
Trojan.Packed.28933
9.0.1.0306

ESET NOD32
Win32/InstallCore.QW (variant)
8.10646

Fortinet FortiGate
Riskware/InstallCore
11/2/2014

K7 AntiVirus
Trojan
13.185.13853

McAfee
Artemis!E7AA7D55E757
5600.6958

Reason Heuristics
PUP.GeryonAdsSL.P
14.11.2.19

Sophos
Generic PUA GD
4.98

Trend Micro House Call
TROJ_GEN.R02SC0OJS14
7.2.306

Trend Micro
TROJ_GEN.R02SC0OJS14
10.465.02

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
34374

File size:
758 KB (776,144 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
Geryon Ads S.L.

Authority:
Thawte, Inc.

Valid from:
6/15/2014 9:00:00 PM

Valid to:
6/16/2015 8:59:59 PM

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:
6/19/1992 7:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:z8FaBV+dhZTW3w1PABkU/AGuwCHOux6LWeAaW1IjbQCtcHnQuTvPlyG4brc:z8FQV+tW3KU/AGuxZaWrEbxUnpTvPlnz

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...
 
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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.

http://softwaredll.biz/downloader/.../download_skwin2014.php

http://softwareforfree.net/.../skype2014.php

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