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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. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from skype.ar.joydownload.co.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
1513d62291142d288ff33e566b5155e4

SHA-1:
2dba34d14c6303ae691cf4852060ccabb801267f

SHA-256:
cc2b6958c8045594917cc24a6d44f94011feaa398ff16d72afe001b6b5bfc9fd

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:
5/17/2024 4:59:46 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.OpenCandy
2014.08.22

Avira AntiVirus
APPL/Downloader.Gen
7.11.173.38

avast!
Adware-gen [Adw]
2014.9-140918

AVG
Generic
2015.0.3347

Baidu Antivirus
Adware.Win32.JoyDownloader
4.0.3.14918

Clam AntiVirus
Win.Trojan.Opencandy
0.98/21411

Comodo Security
Application.Win32.OpenCandy.~WD
18598

Dr.Web
Adware.Downware.6712
9.0.1.0261

ESET NOD32
Win32/JoyDownloader
8.10440

G Data
Win32.Adware.OpenCandy
14.9.24

IKARUS anti.virus
PUA.JoyDownloader
t3scan.1.7.5.0

K7 AntiVirus
Unwanted-Program
13.180.12456

Malwarebytes
PUP.Optional.OpenCandy
v2014.09.18.08

McAfee
Artemis!1513D6229114
5600.7003

NANO AntiVirus
Riskware.Win32.OpenCandy.cxlnia
0.28.0.60253

Reason Heuristics
PUP.Installer.InnovativeSystems.K
14.9.18.20

Rising Antivirus
PE:PUF.OpenCandy!1.9DE5
23.00.65.14916

Sophos
OpenCandy
4.98

Trend Micro House Call
Suspici.218D75EB
7.2.261

VIPRE Antivirus
Sevas-S Installer
33242

File size:
546.5 KB (559,600 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\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 2:53:11 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:wKc2LeeUUD5eLUu9E9/NQ8hVLVpmeLl/afJ4L:wweeUk5j/NQ89prSfeL

Entry address:
0x333E

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, A2, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, BC, 80, 40, 00, 55, FF, 15, AC, 82, 40, 00, 6A, 08, A3, 78, 4F, 43, 00, E8, A8, 2E, 00, 00, A3, C4, 4E, 43, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, F0, B1, 42, 00, FF, 15, 7C, 81, 40, 00, 68, 7C, A3, 40, 00, 68, C0, 3E, 43, 00, E8, 13, 2B, 00, 00, FF, 15, 34, 81, 40, 00, BB, 00, F0, 43, 00, 50, 53, E8, 01, 2B, 00, 00...
 
[+]

Entropy:
7.8777

Packer / compiler:
Nullsoft install system v2.x

Code size:
24.5 KB (25,088 bytes)

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

http://skype.ar.joydownload.co/get_file/wUiS4WnYccXEwj 8WvauHEA0kxQ8PDK1GR/zcteQv A8/yan9np5ktEPL0ykYr32LSb0gA0aZ3GHQuOmHLQ3xrxixs6cDE b/SXqSALlszi1iv/Dr8vT0mlIq4dw2gFQXzWtCTRnlcAv7CC5UGCTUvoFnNXqdD0BYqswLRkIMKblXTl1esTceVgwh LuFSw3P9yshbJyTXux8VDOnPV UMv MJ7/JjQeg9O2XuMhlQ9WtsG92ErzLaB2nT7/.../2zEI=

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