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skypesetup.exe

Skype

Innovative Systems LLC

The application skypesetup.exe by Innovative Systems has been detected as adware by 19 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The installer uses the OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. The file has been seen being downloaded from www.joydownload.com and multiple other hosts.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
78f6c6d0eb0f49444cbe0e6de4a1564d

SHA-1:
d3f368e800b4e0ad6b91bac62eb1d5b186812b85

SHA-256:
30ea403a35b38ea87ab30fbcc910170621a970e1b882cf3159253dee896c59e2

Scanner detections:
19 / 68

Status:
Adware

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
4/26/2024 11:21:35 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.OpenCandy
7.1.1

AhnLab V3 Security
PUP/Win32.OpenCandy
2014.07.29

avast!
Win32:Adware-gen [Adw]
2014.9-140801

AVG
OpenCandy
2015.0.3395

Clam AntiVirus
Win.Trojan.Opencandy
0.98/21411

Comodo Security
Application.Win32.OpenCandy.~WD
19002

Dr.Web
Adware.Downware.5295
9.0.1.0213

ESET NOD32
Win32/JoyDownloader
8.10165

herdProtect (fuzzy)
variant of realplayer-download-8186-.exe (Adware)
2014.9.11.5

IKARUS anti.virus
PUA.JoyDownloader
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.181.12872

Malwarebytes
PUP.Optional.OpenCandy
v2014.08.01.07

McAfee
Artemis!78F6C6D0EB0F
5600.7051

NANO AntiVirus
Riskware.Win32.OpenCandy.cxlnia
0.28.2.61148

Reason Heuristics
PUP.Installer.InnovativeSystems.K
14.8.1.19

Rising Antivirus
PE:PUF.OpenCandy!1.9DE5
23.00.65.14730

Sophos
OpenCandy
4.98

Trend Micro House Call
TROJ_GEN.F47V0604
7.2.213

VIPRE Antivirus
Trojan.Win32.Generic
31690

File size:
470.4 KB (481,736 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
Innovative Systems LLC

Authority:
VeriSign, Inc.

Valid from:
5/19/2014 3:00:00 AM

Valid to:
5/20/2015 2:59:59 AM

Subject:
CN=Innovative Systems LLC, O=Innovative Systems LLC, L=Dnepropetrovsk, S=Dnepropetrovska oblast, C=UA

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:
450EACFE8D673E82864CE46BC1A92FCA

File PE Metadata
Compilation timestamp:
5/20/2013 2:52:54 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:raCHLB6ivFhjs17FEUDTTup+Ts9PJYz5jtNcB+/TRfq:VrB6WFhm7FjDHuzJYz5jtXTBq

Entry address:
0x31B1

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, D8, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, 34, 71, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 08, A3, 58, 92, 42, 00, E8, 90, 2E, 00, 00, A3, A4, 91, 42, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, 58, 06, 42, 00, FF, 15, 7C, 71, 40, 00, 68, C0, 92, 40, 00, 68, A0, 81, 42, 00, E8, FB, 2A, 00, 00, FF, 15, 38, 71, 40, 00, BB, 00, 40, 43, 00, 50, 53, E8, E9, 2A, 00, 00...
 
[+]

Entropy:
7.8530

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file skypesetup.exe has been seen being distributed by the following 12 URLs.

http://www.joydownload.com/wi/Sx8NlVJLBerg8d0jEeijCA/1403052300/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/wda_1ZisQpou2vLC82gupQ/1402160463/1/10/1/.../SkypeSetup.exe

http://www.skype.com/.../getskype

http://www.joydownload.com/wi/ppgWfQV3TK2E2Rk-rePEtA/1403063812/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/PLZncRawNME0sMATkYeaSg/1403200136/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/Dkby2rRroF7oIWQ1MVYjnQ/1402531021/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/WMGgruVlY39h0kfVBKh6Sw/1402822558/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/ZEN0QewVuYEYpNlB78XHHw/1402981415/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/iKtqYD2K76tlCLlKnGR2Kw/1402208502/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/g3yddavuGe9Iv67d6jY0bw/1403236011/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/OeFwVID0YxGOTP95uqTTPA/1402358110/1/10/1/.../SkypeSetup.exe

http://www.joydownload.com/wi/tPx9Na1kuhZxwPgaU7IWig/1402518665/1/10/1/.../SkypeSetup.exe

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