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skypesetup.exe

Skype

Innovative Systems LLC

The application skypesetup.exe by Innovative Systems has been detected as adware by 27 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.pl and multiple other hosts.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
ef598f4b3ac289965c78b0af6de60996

SHA-1:
a3be9eca084e95595d183ab7b887e03cee1a244e

SHA-256:
7d7343e1dbcdcb481b35ec284a631b794d02b78c281fb5422a5c9549e0699479

Scanner detections:
27 / 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:
4/25/2024 1:41:33 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.OpenCandy
7.1.1

AhnLab V3 Security
PUP/Win32.OpenCandy
2014.08.22

Avira AntiVirus
APPL/Downloader.Gen
7.11.168.220

avast!
Adware-gen [Adw]
2014.9-160215

AVG
Generic
2017.0.2833

Baidu Antivirus
Adware.Win32.OpenCandy
4.0.3.16215

Bkav FE
W32.HfsAdware
1.3.0.7062

Clam AntiVirus
Win.Trojan.Opencandy
0.98/21411

Comodo Security
Application.Win32.OpenCandy.~WD
18598

Dr.Web
Adware.Downware.6712
9.0.1.046

ESET NOD32
Win32/JoyDownloader
10.10297

Fortinet FortiGate
Riskware/OpenCandy
2/15/2016

F-Prot
W32/OpenCandy.A.gen
v6.4.7.1.166

G Data
Win32.Application.OpenCandy
16.2.25

IKARUS anti.virus
PUA.JoyDownloader
t3scan.1.7.5.0

K7 AntiVirus
Unwanted-Program
13.180.12456

Kaspersky
not-a-virus:AdWare.Win32.OpenCandy
14.0.0.659

Malwarebytes
PUP.Optional.OpenCandy
v2016.02.15.04

McAfee
Artemis!6C04318E1E19
5600.6489

NANO AntiVirus
Riskware.Win32.OpenCandy.cxlnia
0.28.0.60253

Reason Heuristics
PUP.InnovativeSystems.Installer (M)
16.2.15.4

Rising Antivirus
PE:PUF.OpenCandy!1.9DE5
23.00.65.16213

Sophos
OpenCandy
4.98

Trend Micro House Call
TROJ_GEN.F47V0604
7.2.46

Trend Micro
ADW_JOYLOAD
10.465.15

Vba32 AntiVirus
AdWare.OpenCandy
3.12.26.4

VIPRE Antivirus
Opencandy
32442

File size:
470.5 KB (481,744 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

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

Digital Signature
Signed by:
Innovative Systems LLC

Authority:
VeriSign, Inc.

Valid from:
5/19/2014 2:00:00 AM

Valid to:
5/20/2015 1:59:59 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 1:52:54 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:SaCHLaMIvrvFhjs17FEUDTTup+Ts9PJYz5jtNcB+/TRfH:0raMITFhm7FjDHuzJYz5jtXTBH

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...
 
[+]

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 2 URLs.

http://www.joydownload.pl/wi/vQKq7PH5mSvOqei83PBfdA/1402281715/11/10/1/.../SkypeSetup.exe

http://www.joydownload.pl/wi/aIE4dhBHl06LhXUmnNkCbA/1403244371/11/10/1/.../SkypeSetup.exe

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