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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 14 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 us01.procloudstorage.com.
Publisher:
File.org  (signed and verified)

MD5:
13fa928b6eb5344aae39bd33cdba456c

SHA-1:
fef55e735ba20803dcd8d2b4f36f772e74c8c2b8

SHA-256:
5485a2b81e893829a2260ebcd3eadd7817cde9d3e163c4205921b7ae855b9dc4

Scanner detections:
14 / 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 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:
5/21/2024 3:59:30 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.Downloader
2014.12.08

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.193.76

avast!
Win32:PUP-gen [PUP]
2014.9-150209

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.1529

Dr.Web
Trojan.InstallCore.24
9.0.1.040

ESET NOD32
Win32/InstallCore.RZ (variant)
9.10839

K7 AntiVirus
Unwanted-Program
13.186.14254

Malwarebytes
PUP.Optional.InstallCore
v2015.02.09.12

McAfee
Artemis!13FA928B6EB5
5600.6859

Qihoo 360 Security
Win32/Virus.Adware.94c
1.0.0.1015

Reason Heuristics
PUP.Installer.Fileorg
15.2.9.12

Sophos
Install Core Click run software
4.98

Trend Micro House Call
Suspicious_GEN.F47V1127
7.2.40

VIPRE Antivirus
Trojan.Win32.Generic
35510

File size:
955.3 KB (978,192 bytes)

Product version:
1.5

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 2:00:00 AM

Valid to:
4/26/2015 1:59:59 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:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:SH9p5KSxUwuUbQw6LP71SeanBSvdqHuMgXb5dNamqbP6UPqMCz/X3olcUl9jctNn:SH9vKSlQd779aniIGCb6UE/+c+Yp

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, 53, C9, FF, FF, E8, 9A, 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:
7.9290

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://us01.procloudstorage.com/.../SkypeSetup-22193450.exe

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