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winrar.exe

FITDownloader

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application winrar.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. With this installer, users are expecting to download WinRAR archiver but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
FITDownloader  (signed and verified)

MD5:
d3a6fbe9e0652e7dd1b6e363d7fd1b91

SHA-1:
1582b38df42cd2a5b29aa2a7a59fef06c489dc2a

SHA-256:
4f433d0b1f0ca1b6e70fe524b1e32e7d2a83a1c7fb19d465ddcdd81c25eaa357

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:
4/26/2024 8:52:23 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.FITDownloader (M)
16.2.4.9

File size:
717.2 KB (734,384 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
FITDownloader

Authority:
COMODO CA Limited

Valid from:
4/28/2014 7:00:00 AM

Valid to:
4/29/2015 6:59:59 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 5:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:LYvpLXb/7+obIzxZMFGBHJaR+5tQzHMHEWpM4JkPLtkYgjLi/bVxQC9tOYXtd:LYvxXbT+nxLp1qqEQOPLEhCD5td

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:
7.8765

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

Code size:
37 KB (37,888 bytes)

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

https://d13dhn7ldhrcf6.cloudfront.net/download.php?ins=jaleco&version=080714&domain=winrar&name=WinRAR&icon=aHR0cDovL3NjcmVlbnNob3RzLmVuLnNmdGNkbi5uZXQvZW4vc2Nybi8xMjAwMC8xMjUzNi93aW5yYXItMDctMzJ4MzIucG5n&url=aHR0cDovL3dpbnJhci5zb2Z0b25pYy5pdC9kb3dubG9hZA==&os=&lang=en_US&desc=T25lIG9mIHRoZSBiZXN0IGZpbGUgY29tcHJlc3Npb24gdG9vbHMgYXJvdW5k

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