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tuxguitar12.exe

FITDownloader

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application tuxguitar12.exe by FITDownloader 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 installCore installer. The file has been seen being downloaded from inndl.com.
Publisher:
FITDownloader  (signed and verified)

MD5:
557a6af57bf0dd8da83635d0444e3b97

SHA-1:
308770da31e4c77f605dad87a02c988c60d6a525

SHA-256:
9081c469dbd00a944d4a64b9d2030902fe23f7a7864400dd44f59780686c75c0

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:
4/19/2024 3:07:20 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
16.8.5.3

File size:
733.4 KB (751,048 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\downloads\tuxguitar12.exe

Digital Signature
Signed by:
FITDownloader

Authority:
COMODO CA Limited

Valid from:
4/28/2014 9:00:00 AM

Valid to:
4/29/2015 8:59:59 AM

Subject:
CN=FITDownloader, O=FITDownloader, STREET=28 Lenelblome St., L=Tel-Aviv, S=Israel, PostalCode=651307, C=IL

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

Serial number:
5E0816C139E8D20E76830D3D9638C4FE

File PE Metadata
Compilation timestamp:
6/20/1992 7:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:0Y0vpZZt8xVjOe+crHK4vX7+Yw/oD5fqNKS0jkCwnxXXXgtSkH+vwU8IwrKugkJ/:0RvLZt2jz+cj5e/otfqNK5jWxXXXgEXC

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:
7.8760

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

Code size:
37 KB (37,888 bytes)

The file tuxguitar12.exe has been seen being distributed by the following URL.

http://inndl.com/download.php?version=170814&domain=tuxguitar12&name=TuxGuitar&icon=aHR0cDovL3NjcmVlbnNob3RzLnNvZnRvbmljLmpwL2pwL3Njcm4vNjgwMDAvNjgyNjAvdHV4Z3VpdGFyLTgucG5n&ss=http://screenshots.softonic.jp/jp/scrn/68000/68260/tuxguitar-9.jpg?key=api&url=aHR0cDovL3NvdXJjZWZvcmdlLm5ldC9wcm9qZWN0cy90dXhndWl0YXIvZmlsZXMvVHV4R3VpdGFyL3R1eGd1aXRhci0xLjItd2luZG93cy14ODYtaW5zdGFsbGVyLmV4ZQ==&os=&lang=ja_JP&desc=44Ku44K/44O844Gu5L2c5puy44Gr44CA44K/.../44GI44KL54Sh5paZ5L2c5puy44K944OV44OI&gclid=1

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