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skypesetup.exe

Skype

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 NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from skype.joydownload.com.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
7a0da19cdb3f46fed7aaf818271a7829

SHA-1:
5e98deac5e979efd5860971ac46196a4ef7200c1

SHA-256:
03fa59e3aab5885e9cf66836e9fadb8e8c0c8a99aca715db79ba94516b67c786

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:
11/1/2024 1:19:00 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.8.3.5

File size:
154.3 KB (157,952 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:
5/18/2014 9:00:00 PM

Valid to:
5/19/2015 8:59:59 PM

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:
5/19/2013 8:52:54 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:EYKCiARAoWe1YzIzWL7fYQ9hHHt1MXd8IgRjEf/QhQ00+v7:EaCoWjHL79hHDUd8IgRQz0047

Entry address:
0x31B1

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, D8, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, 34, 71, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 08, A3, 58, 92, 42, 00, E8, 90, 2E, 00, 00, A3, A4, 91, 42, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, 58, 06, 42, 00, FF, 15, 7C, 71, 40, 00, 68, C0, 92, 40, 00, 68, A0, 81, 42, 00, E8, FB, 2A, 00, 00, FF, 15, 38, 71, 40, 00, BB, 00, 40, 43, 00, 50, 53, E8, E9, 2A, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://skype.joydownload.com/get_file/wUiS4WnYccXGwj 8XPavWwllklYyNSrEQ1GyNb G8aZ28zC293p5iNENJ1WnMe/uNDC2w15KM2CKCeLkErQ3yas0nYXdW13Yum2kHk20sn61mbaK55mNg2gIq5c6kQoBRn3kADl/hoRwoH lHSCLS/9Wy83zbm5TerJxJRoFIa7zRHE8cszENF9mnqqnGCcvaoTg2q4/DWOo9AObjvQvDpS3YsCsbnZY2NO2XuMilQ9Apcikzw3qZfN/.../O IWB5Y2enUguvCmGhtzhVW61NdWUHW1FAaqqZvvig==

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