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vlc-media-player.exe

Gufotig

UpdateStar GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application vlc-media-player.exe, “Gufotig Setup ” by UpdateStar GmbH 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 installer is marketed through download protals and search ads as the VideoLAN VLC media player but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Mog   (signed by UpdateStar GmbH)

Product:
Gufotig

Description:
Gufotig Setup

Version:
4.3.5.6

MD5:
062b406ab627ae2c4be71ada85e2f596

SHA-1:
5885e4ad3f1b7977a4865e0d3489a8ce371eb388

SHA-256:
055c8aec77d3c83db7c7696d6f961a514cb3f346aba28f4b74d832f28e2b331d

Scanner detections:
1 / 68

Status:
Potentially unwanted

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 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:
12/27/2024 11:28:24 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.UpdateSt.Installer (M)
16.3.17.16

File size:
1 MB (1,053,208 bytes)

Product version:
2.4

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\downloads\vlc-media-player.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
GlobalSign nv-sa

Valid from:
1/25/2016 11:35:00 AM

Valid to:
3/23/2017 3:24:09 PM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, L=Berlin, S=Berlin, C=DE

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121C7585A2F5B2218EC6B36D472BA6496D8

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):
24576:SQkKEY7qm/1wv048SkSagBSufwL1yKma/ABEbqiomQnuubfVYaatG:SXK7qm/is48aagcLkKma/ABELomYuKtO

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...
 
[+]

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

Code size:
37 KB (37,888 bytes)

The file vlc-media-player.exe has been seen being distributed by the following 2 URLs.

http://www.softwareflashbinaries.com/c?x=BQSLGTCaIkSkTlcowZWYgLMkvS2r2rP i52ss WSMHg=&c=TGySgHw8YFhs03mHxpj3a9Fu3NdMp8ZiCpdf/5w6H/2PWIoYcudcR97p8yx2xNYz XMhYlO7QVTO4XWYDuOS8seMVl2Xyn07o/ROg9RGP sqpRyw7wvTzIJPwAJSUOYK&downloadAs=vlc-media-player.exe&fallback_url=http://mirror.easyname.de/videolan/vlc/2.2.1/.../vlc-2.2.1-win64.exe

http://www.softwareflashbinaries.com/c?x=5eMaCa9pk7gdjSdRZ9IX8BaKt4FjQXGTRgXV5rAGGFE=&c=3acfv8U9wGp4uQKwaAJmE ok N4tJXJXyYYHxZnnyXy29p9WJC5hdatkZhXuIQP70uCx/eshNZ11Ohv6lODdYP7olcqbmAni/m2OXudmLpJGvx2 zv6VCQCMjt8qy9kl&downloadAs=vlc-media-player.exe&fallback_url=http://mirror.easyname.de/videolan/vlc/2.2.1/.../vlc-2.2.1-win64.exe

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