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skypesetup.exe

Skype

Innovative Systems LLC

The application skypesetup.exe by Innovative Systems has been detected as adware by 20 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.it.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
aa5dd97b76a9ffe71ed579c94c6cb413

SHA-1:
d4935bedea61118565c055663985d0af10563efe

SHA-256:
d7b193219879c2d64b4ee1ceeb439a4a60dadf007dd81d4c96197c91a83be62e

Scanner detections:
20 / 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:
5/8/2024 7:29:50 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.OpenCandy
7.1.1

AhnLab V3 Security
PUP/Win32.OpenCandy
2014.07.20

Avira AntiVirus
APPL/Downloader.Gen
7.11.168.220

avast!
Adware-gen [Adw]
2014.9-140829

AVG
Generic
2015.0.3367

Baidu Antivirus
Adware.Win32.OpenCandy
4.0.3.14829

Clam AntiVirus
Win.Trojan.Opencandy
0.98/21411

Comodo Security
Application.Win32.OpenCandy.~WD
18598

Dr.Web
Adware.Downware.6712
9.0.1.0241

ESET NOD32
Win32/JoyDownloader
8.10122

IKARUS anti.virus
PUA.JoyDownloader
t3scan.1.7.5.0

K7 AntiVirus
Unwanted-Program
13.180.12456

Malwarebytes
PUP.Optional.OpenCandy
v2014.08.29.06

McAfee
Adware-OpenCandy.a
5600.7023

NANO AntiVirus
Riskware.Win32.OpenCandy.cxlnia
0.28.0.60253

Reason Heuristics
PUP.Installer.InnovativeSystems.K
14.8.29.18

Rising Antivirus
PE:PUF.OpenCandy!1.9DE5
23.00.65.14827

Sophos
Generic PUA NE
4.98

Trend Micro House Call
Suspicious_GEN.F47V0715
7.2.241

VIPRE Antivirus
Opencandy
31402

File size:
489.6 KB (501,376 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 1:53:11 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:lL2cIe5LQ7Cub6L+JpF9g0WJgYbCNqQdEnHBuWClmKkXkJaqFp1tJQHvSqjXD6K9:lKcfLQ7xrp9eQdmIoZqTe5Oy

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...
 
[+]

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.joydownload.it/get_file/wUia6yjQOMzI2muzUbjxCgggkkU0PTijGB3ga5/ZtOM8/zGn4SgumpJLbxv1Y/j2Onmugw8RcjaeEKqtG78lmuA01s3eDQ6b7S77Hk20sni1mbaI svTyGlIqtY6gF9QFC/zGDU2nsAj7Cr5XHGSA7ZawtW3aGtTPfsgJFsFMKXlV3l2asWNLB0onvSsUn9nLZf5iOc0Cmm/.../YghSflCc5Z5NXYGDCp5vLF3mlgeeMLEJY2dA==

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