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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.8-136-221747.53f3f325c7bfd.jdcdn.net and multiple other hosts.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Skype

Version:
1.0.0.0

MD5:
fc149007358f688efe414917b506ae0b

SHA-1:
682ee17ec3aa751a8523343519b275473b759caa

SHA-256:
ef6e93dbc9aca4f89734a9878bf0f15d5d0593375de96a2251a36578e0f62341

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:
12/26/2024 11:54:18 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Innovati.Installer (M)
16.3.30.16

File size:
491.8 KB (503,624 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 7:00:00 PM

Valid to:
5/19/2015 6:59:59 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 6:53:11 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:yKcfLYczHwKBJX/EN+EqSHWNolnFN/gbowUs+GjRgIFAJnCq9EGDH0z:ujYczwIX/ENeSHc8j/cos+uRRF25x+

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...
 
[+]

Entropy:
7.8563

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 2 URLs.

http://skype.8-136-221747.53f3f325c7bfd.jdcdn.net/get_file/UxqgMcPSZ4wQzW4kdKdbHQ/1408500021/8/12/1/.../SkypeSetup.exe

http://skype.joydownload.es/get_file/wUiS4WnYccXEwj 8WvauHEA0kxQ8PDK1GR/zcteQv A8/yWn9np5iNENJ1Xma73uNDC2wl5KdieeEKqtGb8lwqtrh8ycBwaDq3a7TBqm8T791 fa7dPdm3EI txw1kdJF3yjACwjzZ987CC5UGKdSq4/k46hYlRSLPxyMU1HZr38FXB9ctyRZQkpz6vjGDRiIdumjqp2HGL5uFzFjqokRMv/JdClNntd28G1Ge8slhUQ5sv3jlLqLfMhhSf/CcdWrc24SWuv6sWCkW8qYbxRR4Y8PnskounkFxlrnE/.../yoYjvig==

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