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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 icjdcom.blob.core.windows.net.
Publisher:
Software Association LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
c1c53072f9bc7c1885aed258be824b73

SHA-1:
b1f360be1e3430c316c70e965b8a13cb1f7ffa0c

SHA-256:
bea87a00f38a912df3c5f670fff7a5bbbf74b9e5d50ae906cdc2aad6fd162bac

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:
4/29/2024 5:41:52 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.OpenCandy.SoftwareAssociation.Installer (M)
16.2.20.12

File size:
687.1 KB (703,552 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\skypesetup.exe

Digital Signature
Signed by:
Software Association LLC

Authority:
DigiCert Inc

Valid from:
1/13/2015 12:00:00 AM

Valid to:
1/21/2016 12:00:00 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 12:53:11 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:GKc3LaryTH9754PKlP0HF6dmDU/2Kzk1Wnt61pB8LrnTVcysI1QXs2Gn:i7aOp52SP0l63zbnc1jexF1Qsn

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://icjdcom.blob.core.windows.net/fas/wi/1/36/1/.../SkypeSetup.exe

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