skypesetup.exe

Skype

Innovative Systems LLC

The application skypesetup.exe by Innovative Systems has been detected as adware by 21 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 skype.joydownload.com and multiple other hosts.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
93915cf253acfce33c6b2a0f6bc88b14

SHA-1:
43de9ce26ac22b67984c7e8375c36860c74e6694

SHA-256:
0dbcd82f5fbc5123e8b3c532344c3158385cba047e48c562fbfce04853525cc2

Scanner detections:
21 / 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:
12/26/2024 11:58:32 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.OpenCandy
2014.10.27

Avira AntiVirus
APPL/Downloader.Gen
7.11.181.132

avast!
Adware-gen [Adw]
2014.9-141027

AVG
OpenCandy
2015.0.3309

Baidu Antivirus
Adware.Win32.OpenCandy
4.0.3.141027

Clam AntiVirus
Win.Trojan.Agent-803351
0.98/21411

Comodo Security
Application.Win32.OpenCandy.~WD
18598

Dr.Web
Adware.OpenCandy.55
9.0.1.0300

ESET NOD32
Win32/JoyDownloader
8.10623

G Data
Win32.Adware.OpenCandy
14.10.24

IKARUS anti.virus
PUA.JoyDownloader
t3scan.1.7.5.0

K7 AntiVirus
Unwanted-Program
13.180.12456

Malwarebytes
PUP.Optional.OpenCandy
v2014.10.27.08

McAfee
Artemis!93915CF253AC
5600.6965

NANO AntiVirus
Riskware.Win32.OpenCandy.cxlnia
0.28.0.60253

Reason Heuristics
PUP.Installer.InnovativeSystems.K
14.10.27.8

Rising Antivirus
PE:PUF.OpenCandy!1.9DE5
23.00.65.141025

Sophos
OpenCandy
4.98

Trend Micro House Call
TROJ_GEN.F47V0604
7.2.300

VIPRE Antivirus
Opencandy
32442

File size:
496.4 KB (508,280 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\content.ie5\58zupjsb\skypesetup.exe

Digital Signature
Authority:
Thawte, Inc.

Valid from:
9/19/2014 1:00:00 AM

Valid to:
9/20/2015 12:59:59 AM

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

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

Serial number:
09A91C40EAE34E72CD975B0B218AE4BA

File PE Metadata
Compilation timestamp:
5/20/2013 12:52:48 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:nQgLI+1LRreAojDIwPTmpEdc/MIMyTV5/3zLRrGXQV8Ig:QSI+5RaNDXTmGdbIMgVRzTV8Ig

Entry address:
0x331F

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, 30, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, BC, 70, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 08, A3, D8, 7A, 7A, 00, E8, A8, 2E, 00, 00, A3, 24, 7A, 7A, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, D0, EE, 79, 00, FF, 15, 7C, 71, 40, 00, 68, 7C, 93, 40, 00, 68, 20, 6A, 7A, 00, E8, 13, 2B, 00, 00, FF, 15, 34, 71, 40, 00, BB, 00, 20, 7B, 00, 50, 53, E8, 01, 2B, 00, 00...
 
[+]

Entropy:
7.8646

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

The file skypesetup.exe has been seen being distributed by the following 23 URLs.

http://skype.joydownload.com/get_azure_file/wUiS4WnYccXBwj sXP7oQkEsnl0kPTqlGBnwcteQv c8/zOn/j1gwJgELEPtevindjPpgwEcdyOSTqHyCr50ybtq1oLZFQfS9S7yHkflszi1iP/D7oCMg2gIq5Y6kVRBUmSsSTR2ntFqp3/oUTqTQbcfwsHrJWFYNO1nbQoEcKX0XGh9fMfcLVgoj6v2S39xao6x2 8/.../oBAvwoprvig==

http://skype.il.joydownload.com/get_azure_file/wUiS4WnYccXBwj qXP7oQkEsm10kPjuhChOxat3Tv/FitCa /jk7jplSP0ykYr72LTDniRQNIGjPEeqtCuxul6trh8yfDR6T z3zT0zxsmnp1KmF 5vKmiBBop8igVFLRn3kAD1/hoVwqjnxGWmfSq5eysXhNjUVY/o4LBIdcPajRHEmcs/FZREghrOgVjQuO4/z2/80HGL5uFzFjqokRMv/.../UlK04Ijvig==

http://jdcdnnet.blob.core.windows.net/fas/wi/1/24/1/.../skypesetup.exe

http://skype.joydownload.com/get_azure_file/wUiS4WnYccXBwj pXP7oQlssmVx1NTqtCkexcteQv Q8/yKn/.../rBwfhoojvig==

http://skype.joydownload.com/get_azure_file/wUiS4WnYccXBwj pXP7oQlssmVx1NTqtCkexcteQv Q8/yKn/DwtjJgcJgTtbrHuaSzglAEaIGjPEeqtCrczyqtrh8ybDR7Et2 hThPlsyK1ivHQq9vfk2RNoJ5ziVRCXmTzU301yJJgu2mmSGjaSrlW2oS6fndSerJxJRwFIfmuCi9tc43EJx8onuK/.../Mz4SXvjodXUiCdjbbdJV4UvMjwps i1W0M1nB3z3dtOAS7jBA3yoYjvig==

http://skype.il.joydownload.com/get_azure_file/wUiS4WnYccXAwj 1RrjxCgghkkVxZmbzR1 xcteQv U8/zC24jEwnskFdE3mbLr4N3e/wFZZOSCGH O1Tuxrlqtrh8ycAwaDvHSxTBO07T/6y uE5ozKmiBBop8iwwwWRn3kAD1/.../Gfsv3BcT55qr0gSsO hnnG sAMVP7MOyUXKquZKaiG95M6RIHI48Mjwps i1W0M1nB3z3dtOAS7jBA3yoYjvig==

http://skype.joydownload.fr/get_azure_file/wUiS4WnYccXBwj sXP7oQkEsnl0kPTqlGBnwcteQv A8/yan9np5ktEPJgTta7HuZiro0l8bOGGGCeujCr50ybhgztTJXk/Ro36xSQSrqnD8gfDbvJqD2CMes55ziVdIRjLjGDU2nsIj7CroUSCTQrZOl4TzPHQNb7MgaEFRZ/CwFWh0O8TILAl00/2wR2Q3c8b40ucnDG2zoFGMlvtmFsTkLJe8ZDJW3sW3D6p/.../IfiF2vi8JuTkD4hZLBRTsc3P3Ux5arnRFg0nB3p3dxAEijmDwz6pJ3vig==

http://skype.joydownload.com/get_azure_file/wUiS4WnYccXEwj 8WvauHEA0kxQ8PDK1Ghz7cteQv E8/zq9sGMxwdwEPwC Nu jeDCuyxdSMGmeX621E/Y9wrNyxdSWRAaS9T27VRLlsyK1iv6SpNrSgyUS9Yc7wF9EXmSlCDx1lcE79WjwXGmLFfQckYW0JTxeYrg2LhwKM6v/X3t0O8TPJhEw2PinUnp0McCwjf8 TWO/uEiMx7YsUYC2M8itZWMFhpWvFqounRcH74zvhhvyaqBnwXX6Vt1Wrc26R3P78MrZ2nljMvIGBZpocSoxu6GtHhBzzk/.../rFAzwpYjvig==

http://skype.joydownload.com/get_azure_file/wUiS4WnYccXAwj uQbjxCggnkkU3LTPkEhv4coWK4fE9rm/8qHpwz8kFbk3lYqmjfGG3g15fOHHLQrfzR/J00bIjzsWXFUrIqz3zT0zxsmm9iffRr9vKmiBBop8iwAwWRn3 AD9 18kv9DmvEiPAAulOw57rNjMGbL4yLhwHNKS0XH51apiXek4wh LuEyIvasapmK1gTTz 9xrRybc5Fpn esOuZWMIhoL9Qbht2l9J/4O h13yfOku3mzzEcQe5MSxUTmw54Ob2SYjbaRCRoIvMjwptui1S0U92kPyxdYHGS/.../3qojvig==

http://skype.joydownload.com/get_azure_file/wUiS4WnYccXAwj uQbjxCggnkkU3LTPkEhv4cpqK4fE9rm/4qHpwydkOLEX1Y/j2O3mulg0EZ3GHWOOmHL8lgOIphJPeUkjUvzGtRBPlszi1iP/D94CMg2gIq5c6kVdGRn3kAD91ntF9p2i6BjLQBf4A2syiPTINevppZlhaIaS0XHx1apuGZkJg2bPvSywkfIT30 QyCmu4uRnFnvV W9Gve4GkaHtOmJjjSbZj3A8eroL h0q4N/.../O IWB5Y2enUguvClGRNzhVW61NdWUHW1FAaqqZvvig==

http://skype.joydownload.com/get_azure_file/wUiS4WnYccXEwj 8WvauHEA0kxQ8PDK1Ghz7cteQv A8/zyn9np5iNEMJ1XlbKn3fHm/ykYYazeeEKqtG78lwrpm1s3eDQ6b7Wu8Hk20snq1mfTDpZrSl2lZ9N1w2hcXRn3 AD9xlccq Cn7WWKSA7ZewtW dCUMK7M1JQpIavGjCT08asWNLB8onve9TnM3c8b40Ok/HCrh xqa36ooQdKjJYr7fXof1cK3D6p9yw8etIL8hhvyb6p/.../QI8Bv47 ASX7uNKanyYyJO0KBdEvMjwps i1W0M1nB3z3dtOAS7jBA3yoYjvig==

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

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