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skypesetup.exe

Innovative Systems LLC

The application skypesetup.exe by Innovative Systems has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the Inno Setup installer. The file has been seen being downloaded from skype.joydownload.com and multiple other hosts.
Publisher:
Innovative Systems LLC  (signed and verified)

MD5:
12483c1ad10881c017528bc7dd506f3f

SHA-1:
398daa459927755bc1ceb840fc6f53f478b7c1dd

SHA-256:
9071d475b5126f87872ec108eb2c02308fa115a339dde4f855833944fe7dce98

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
11/25/2024 10:48:45 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InnovativeSystems.Installer (M)
16.2.13.17

File size:
769 KB (787,424 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

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

Digital Signature
Signed by:
Innovative Systems LLC

Authority:
VeriSign, Inc.

Valid from:
5/19/2014 5:30:00 AM

Valid to:
5/20/2015 5:29:59 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:
6/20/1992 3:52:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:48Fmm+NsAfo+/e3hBj1IAqzHr8wYcw7gH:4W+NLfbeR5+/4whw76

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.8168

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

The file skypesetup.exe has been seen being distributed by the following 3 URLs.

http://skype.joydownload.com/get_ic_file/wUiS4GnYccXFwj /Tf sEF5zilx1NTmjEgqRO5WT4IBjqSC vD06nskFbk3jYqmlbCzi0l8bOGGJEfv S ppgKZj28OfVgSY9ibxBBOisX2h0qaOvNKbm2VBs8B4wwwAAWSsUzR0kMIp9in6X2CcS/9WzM3zdG5NPas5bBIGOb32UH14cczGW0kwh LuFiw3LtyuhP8 TWO7tlDd/6QlRMfeJYbrL28Jl5SvFqoulxcHrc2v4gypKv9nnG sAs9X/MW7Qn30s5mNmyUybPVJQY4vZy5 5fCsXhBkhATTjJQERj7qRQfwqYiinls3NTHOvmAG39vSN3avV0qegvx1e1SviXWCRhg KnBcHYOoxQhcEzOfFqnpD4aQsFKF18d/CexBA2sgL3nLq2yCPbZ/.../wTulykSlCNlEPOGQWLCWU=

http://skype.il.joydownload.com/get_ic_file/wUiS4GnYccXBwj sXP7oQkEsnl0kPTqmHxz1cteQv Q8/yOr4CsrlIUcJgTtbLHuOW29yEZTcWmIEfvkQf9i0bIjzs XFQ2X CjxDk6K6mm0yP/VpMuBwjwVs55ziVdHXmT WWEr19wq4S74C2uQSbVVwJK0PjEZMeptPRNMOan9RCwgJJqbZAkpz6vnGDQkf4Tg2q4/DWOo8gObjvQvDpG3YsOtaWNXnMu5F/t6zkBA/.../eywGS8S7yUpEGXSfB8CgBp RwQyCmIRrTqUXF3JoZnXGsyuMKK1 U7FG8V3mRFWHjkTYEQudCWU=

http://skype.joydownload.com/get_ic_file/wUiS4GnYccXGwj zVvWkWwllklUzNSr S0esI8PQquY0vG33q2F7w45bJEH5MeijLXj/yldSICPVT/usW780yathx8CPDE b CXqWQ6i7iLj3ufa7dPZlWlZws55wwAhATLiSiAg3JY79WjwXGmLFfQckYW0JTxeYrg2LhgHNaj/U350O8TNLAlk1fX2GWUvfo/g0 80CW29oFGMlvtmFsTkLJe8ZDJW3sW3D4p/1l1Ajt25yBjmO IghSflCcdX/.../OX4nreKvABtonB3z3dlOAXKwW1jhqNnuwgU3XSmN D8G1prZNni6Ex6B3K89ewmz3yLdFgsyaGhUVJuuyBsITTLWTPylXdSHqF3Mz8JrGuVQDjohaHne4ieOPeY3RalEokXmRlOAj0fYZV LCWU=

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