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skypeupdatesetup.exe

File.org

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application skypeupdatesetup.exe by File.org has been detected as a potentially unwanted program by 11 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from dl01us.file.org.
Publisher:
File.org  (signed and verified)

MD5:
31ac11830cd4365444309cebf4d1d7a4

SHA-1:
c1f77bf70cb50f2a090b0d1cd4907da6c6cd4ab0

SHA-256:
d762cda244125af9ad906e3f884cd0b212b178b2e82f2289d8b84d0b12ef460a

Scanner detections:
11 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
11/15/2024 6:25:01 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen9
7.11.163.184

avast!
Win32:Adware-gen [Adw]
2014.9-140804

Dr.Web
Adware.Downware.4757
9.0.1.0216

herdProtect (fuzzy)
variant of adobereaderupdatesetup.exe (PUP)
2014.9.12.3

McAfee
Artemis!7D6E985BA6E9
5600.7010

Qihoo 360 Security
Win32/Virus.Adware.f22
1.0.0.1015

Reason Heuristics
PUP.Installer.Fileorg.Q
14.8.4.6

Sophos
Install Core Click run software
4.98

SUPERAntiSpyware
PUP.InstallCore/Variant
10442

Trend Micro House Call
Suspicious_GEN.F47V0721
7.2.216

VIPRE Antivirus
Trojan.Win32.Generic
31806

File size:
672 KB (688,120 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\skypeupdatesetup.exe

Digital Signature
Signed by:
File.org

Authority:
COMODO CA Limited

Valid from:
4/25/2014 1:00:00 AM

Valid to:
4/26/2015 12:59:59 AM

Subject:
CN=File.org, O=File.org, STREET=Bysoestrade 2B st., L=Holbaek, S=N/A, PostalCode=4300, C=DK

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00E2D23668FD70A6AD497F37619358D967

File PE Metadata
Compilation timestamp:
6/19/1992 11:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:dPFaqdQOjlxSJxsh71i3yY7kjlmtVdqTWWgh+CBEBWsYyGWC5doQ0d8x:dPFjSOxxN1i3z4BmtjqTWLWo75qVax

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.8830

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

http://dl01us.file.org/.../SkypeSetup-19966090.exe

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