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skypesetup.exe

Skype

Download Helper

This is part of the Air Installer, a download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application skypesetup.exe by Download Helper 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 AirInstaller Download Manager installer.
Publisher:
Download Helper  (signed and verified)

Product:
Skype

Version:
3.0.0.154

MD5:
342307a94017aa0ee501a58828e7453e

SHA-1:
2c572d22bd8ba6b7d0377ec078d6d9a89c6e52e5

SHA-256:
37aa02fceab03441e5466d639c0ce28f9950ae8f43625d04e560e183c03b7d02

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.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/25/2024 6:11:13 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.4.28.22

File size:
1.1 MB (1,134,680 bytes)

Product version:
3.0.0.154

Copyright:
(c) Download Helper

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
Language Neutral

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

Digital Signature
Signed by:
Download Helper

Authority:
COMODO CA Limited

Valid from:
4/26/2016 5:00:00 PM

Valid to:
4/27/2017 4:59:59 PM

Subject:
CN=Download Helper, O=Download Helper, STREET=536 Herald St Unit 308, L=Victoria, S=BC, PostalCode=V8W1S6, C=CA

Issuer:
CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00800F4BF1F85252195C3C6977425DCB03

File PE Metadata
Compilation timestamp:
1/30/2013 6:21:56 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:/xGMGfjmTkC3ZdBH5nPuUD/ulkspeLyEJakx:IjfAkG5nmUyCnyEJakx

Entry address:
0x113BC

Entry point:
55, 8B, EC, 83, C4, A4, 53, 56, 57, 33, C0, 89, 45, C4, 89, 45, C0, 89, 45, A4, 89, 45, D0, 89, 45, C8, 89, 45, CC, 89, 45, D4, 89, 45, D8, 89, 45, EC, B8, 2C, 00, 41, 00, E8, E8, 51, FF, FF, 33, C0, 55, 68, 9E, 1A, 41, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 5A, 1A, 41, 00, 64, FF, 32, 64, 89, 22, A1, 48, 5B, 41, 00, E8, 16, D8, FF, FF, E8, 65, D3, FF, FF, 80, 3D, DC, 2A, 41, 00, 00, 74, 0C, E8, 2B, D9, FF, FF, 33, C0, E8, 80, 32, FF, FF, 8D, 55, EC, 33, C0, E8, E2, A3, FF, FF, 8B, 55, EC, B8, 50, 86...
 
[+]

Entropy:
6.9570

Developed / compiled with:
Microsoft Visual C++

Code size:
65.5 KB (67,072 bytes)

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