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skypesetup.exe

Skype

Software Association LLC

The application skypesetup.exe by Software Association has been detected as a potentially unwanted program 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 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.pl and multiple other hosts.
Publisher:
Software Association LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
c8f39d03054c7d22c210452526361b04

SHA-1:
4ab758b103d221bcc6261ac80ede32b8f9911e3d

SHA-256:
f1dc262b9f4caad71616f44acb5870471d6726e3d2a2e7baaa11f01e54cc62c1

Scanner detections:
1 / 68

Status:
Potentially unwanted

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:
11/25/2024 6:47:20 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.OpenCandy.SoftwareAssociation.Installer (M)
16.2.4.15

File size:
418 KB (428,072 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\skypesetup.exe

Digital Signature
Signed by:
Software Association LLC

Authority:
DigiCert Inc

Valid from:
1/13/2015 1:00:00 AM

Valid to:
1/21/2016 1:00:00 PM

Subject:
CN=Software Association LLC, O=Software Association LLC, L=Dnepropetrovsk, S=Dnipropetrovs'ka Oblast', C=UA

Issuer:
CN=DigiCert SHA2 Assured ID Code Signing CA, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0E1FC80B1C57AD69AA6F8D65D1CF90CF

File PE Metadata
Compilation timestamp:
5/20/2013 1:53:00 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:YiuRLXur5PG0pDyCso9SwoFCuOF3jUX04F:k1XuVPtdZ9aFCuKTAVF

Entry address:
0x331C

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, 98, 92, 42, 00, E8, A8, 2E, 00, 00, A3, E4, 91, 42, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, 90, 06, 42, 00, FF, 15, 7C, 71, 40, 00, 68, 7C, 93, 40, 00, 68, E0, 81, 42, 00, E8, 13, 2B, 00, 00, FF, 15, 34, 71, 40, 00, BB, 00, 40, 43, 00, 50, 53, E8, 01, 2B, 00, 00...
 
[+]

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 13 URLs.

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXBwj qXP7oQkEsm10kPjuhChOxat/Zp6BvuXf1 2JzytBNJ0XteuS/LXj/ylNSICTVRb34X/YlyPpqxcaXFVjIvG kXQ y ietgLbbq9PK0jgC4cAiiBZIVny1Tnpnn4Aj/yHoW3GSA7ZfwtW4bmMVY/o4LRIdMK7lXTl1fMTccEJ 2bPvUSwkfI/.../7baxwnyytQMVb5NXtHCW95tOCkW8qZbxRRIAvMjwps i1W0M1nB3z3dtOAS7jAw7ypIjvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXGwj 8XPavWwllklYyNSrEQ1GyNb G8aZ28zC293p5iNEIJ1WyIPulfSauyw1SM2ePGOmgGLQ3yrIjzsSXFUjV7SS7Bkf9qnqtgLbbrdPK1zofs55ziVNIRnSlDz10k9EivSH5UHHZGehOw4TrND0Vabo0PRNMOan9RCwgJJqbZAkpz6vmGDQkfJf5kuc0DmOo5gOM3KM9Tdf/LNClLHtZ1dP RqBkyg8eroL h0qhN/.../UlK04Ijvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXBwj qXP7oQkEsm10kPjuhChOxatrZp7VpsTGr4Hp5iNEMJ1XmbKn3fHm/ykYBazeeEKqtGr8lwLhyz4WXAQaDqme4VQSiqnDmgfTVrd/fkGRIoJc7wF9AXmTjTix 18ko9Dn7SGjaSr9W2oS4YyUMMbMzLhNMOav9RCwmJJvcLVgojaXuAEV McWnsrhxSymk5xKajvQvDpG3YoT3O2NXnMu7F/smnRgW7I/vhhvyb6p/hXj/.../UlK04Ijvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXGwj 8XPavWwllklYyNSrEQ1GyNb G8aZ28zC293p5iNEIJ1WxN eoajGuyxdSMGmeGu21E/Y9wLNynZ/JFQfS9S3yHkX2qnD8gffbvIabg2gIq5I6kRIbCiL4TX1nn4Aj/yvwSDfAA/wAmY6kdWsVY/o4KhIdcPS Fi9tc43EJREwyviwAC1mcoP4w 83C2q7tUjE3/VvDoD KZa8ZChW3sC2XuMilQ9Apcikzw3qZfN/liilBMtc78e7R3KquZOaiGhkdb0AT4U3K34xu6GtHhBzzk/.../rFAzwpYjvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXBwj qXP7oQkEsm10kPjuhChOxat7Zp7x1/269qG942ZxXcxO4L/juNDC2xl5KZyvMQqvyCr5uybhkx8CZBwiU/SrzT0z0smn80qHDpYDSkGJA4p8ziUcEDSK1AX1/ksk7/Cn/.../hXr5X5sIrNWwAHPruYORnj4rJLxCRY4vbSZg8L72VF8j0gS7lNdBGT6iXUSz9ojvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXDyCf4UfO5CV530RJ0YyqsWxL3as6Q7qp2uHf14WJwwclRblXsK7H7NWH7mQoMbSTPCeLkErM90e8/mJLIRR6avCX6BlT2vGm0yP/.../hpZhvnK4D3GSGbZdzMTkPzMEYb86JFsFMKXlDyMrasWNLBkonqLlAC1mcob4w61sWnux8VDMlu1tB5Sve4GkbHtOnJjpD J9lRwU5sv3iVLqOPMpwj6tQMVc6s2pICKg88Tzz2hlJ6gWDdEvMjwps i1W0M1nB3z3dtOAS7jAw7ypIjvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXBwj qXP7oQkEsm10kPjuhChOxat/Zp6BvuXf1 2JzytBNJ0Pteu2lYyauyxdSM2eGCYr8UfVioOwkgYaDUkTE7SS7BkD9qi73y6yT 8vTyGlKpZYxi1VFUnWiAX1/l8k7uHKuSGjaSrpW2sXjMjQGb6s5bBINOb2oFWh0O8TJLAll1f wTWFmao6x2 8/HC3 oFGMlv5mFpOve4GkaXtOiZ7hSbxmjRZW54r3n1n8fKE2nS2mCd0Jt4T7Hyig9tPMiCdjbbNJV8dmcD92ounkFxlrnE/.../woojvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXAwj uQbjxCggnkkU3LTPkEh74comb9bp0uHf1 2Jzz9gIKkbhab77NDC2xl5KZDzQT7zlCr50ybtq1seZFQfS9SzyHgCu7Gm0yP/XpMvak2ZIoJIiiBZIV3y1SWchhshw9Cr7USCTQrZOl4TzPHQNb7MgaEFRZ/.../g0uwnBSqwsVDd3KY4Fpn esGkfXBf2dO2XuMglQ9DtNSon1O7ZKtxnT7FWIYdu6TuBzyprcTYzz4rJLxCRY4vbSZg8L72VF8j0gS7lNdBGT6iXUSz9ojvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXBwj zXP7oQkEsml0kPDm1E1v4Y9bB9bpi/269qGt42doNK1XsK7H4NWHqmQgNIGjPEeijEqdUmPAgkaXIQ0nR4XqwWVT8 3G i//D oCb0T8a6NBy30dJF3yiACw2z4ppqznxGWmaSq4fkZPzPG4Nabg5bBINOb2oFWh0O8TJLAll1f wTWFmao6x2 4/HC/j5kjE3/VqDoC/.../yp4jvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXEwj 8WvauHEA0kxQ8PTK1GRzga5/ZtukktDyqsGMxwdkEP0TmerC/NXC20hIBZnGHWOOhEqc1wbxjxcGPDE b/SXqSALlszi1iv/Dr8vT0mlIq4dw2gFQXzWtCTRnlcAv7CC5UGCTUv8FnNXqbj0GabJxJRoFIfC0RHE8csnENFx70vW7VWU3c8b41ecnWDDm50jE3/VtAJivE5nnLyQ/ioX4Xfdx10gH5sv3i1LqO I1zm7zEcQE5Ma/.../ttJCUmysrJLxCRY4vbSZg8L72VF8j0gS7lNdBGT6iXUSz9ojvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXGwj 8XPavWwllklYyNSrEQ1GyNb G8aZ28zC293p5iNENJ1W Me/uNDC2wl5KMWKeEKqtG78lheA01s3eDQqb7S36CUX2v2m0yP/XpMuN2SMS48AiiAxIVXKlAzpxkcMv CC5UGKZSq4IkYSha2ZOLftuPRNMOar9RDkkMY6bNBBhhqLuAGZ8LJf5kuc2BHu7sVzdl7xmApivJp3yOyQezcr F sujRwR/4O h1ryfPU2hSflCchX/.../rBwfhoojvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXBwj qXP7oQkEsm10kPjuhChOxat3Tv/FitCa /jk7jplSP0ykYr72LTDniRQNIGjPEe tCuB/g AikdSWXgaQ yz8DULzuXi4gLbbqtPKxzoX9Ic7wF9DUHy1aWU81JZKq2 /.../yp4jvig==

http://skype.joydownload.pl/get_azure_file/wUiS4WnYccXDyCf4UfO5CV530RJ0YyqsWxL3as6Q7qp2uHf14WJwwclRblXsK7H7NWH7mQoMbSTPCeLkErc90f0k1s3eDQ2b7S7qBwX9vnGt3aqN oyag2gIq5c6kVRGRn3kAD1/.../lnR5i5etD4Ni0Jzcr F gglQ92tsG92DutKu81iXnuVt1Wrc24SWuw6sWCkW8qZbxRRoUvMjwps i1W0M1nB3z3dtOAS7jAw7ypIjvig==

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