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adobe-flash-player-for-64-bit-windows_setup.exe

WebSys, s.r.o.

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application adobe-flash-player-for-64-bit-windows_setup.exe by WebSys, s.r.o has been detected as a potentially unwanted program 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 installCore installer. The file has been seen being downloaded from d1.windows8downloads.com.
Publisher:
WebSys, s.r.o.  (signed and verified)

MD5:
8949282e4b6dc998bb5fc5ba6bcf1407

SHA-1:
1667f6d0160f148646b0a0f3691d59409888768a

SHA-256:
2c7104c98d5be1ef9d77bfd5ccd1f431bdfb757ec78318dcb399b42ac88c688a

Scanner detections:
1 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore monetization platform to install additional offers that might include adware.

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:
11/23/2024 9:30:04 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.3.15.20

File size:
671.8 KB (687,904 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\adobe-flash-player-for-64-bit-windows_setup.exe

Digital Signature
Signed by:
WebSys, s.r.o.

Authority:
COMODO CA Limited

Valid from:
2/10/2014 7:00:00 AM

Valid to:
2/11/2015 6:59:59 AM

Subject:
CN="WebSys, s.r.o.", O="WebSys, s.r.o.", STREET=Namestie sv. Martina 9, L=Holid, S=Slovakia, PostalCode=90851, C=SK

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

Serial number:
00B6DBC4D5DDB70F36487D154735DE96E7

File PE Metadata
Compilation timestamp:
6/20/1992 5:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

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:
7.7341

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

Code size:
37 KB (37,888 bytes)

The file adobe-flash-player-for-64-bit-windows_setup.exe has been seen being distributed by the following URL.

http://d1.windows8downloads.com/.../windows8downloads_installer.exe

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