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file_downloader.exe

Contumar Empresarial s.l.

This belongs to a Solimba product that may be bundled with additional PUPs or may be part of an ad-supported software program. The application file_downloader.exe by Contumar Empresarial s.l 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 Solimba DownloadMR installer. It uses the Solimba download manager to push adware offers during the download and setup process. Bundled adware includes search and shopping web browser toolbars.
Publisher:
Contumar Empresarial s.l.  (signed and verified)

MD5:
9b4f45a2ee5ed6b1d607375d6436c1e6

SHA-1:
fe1034f67eaf3e93998909547af08202271764ac

SHA-256:
3edd14de6780f3870a1c4681d4d416034fa239625a33282cdc6937c32677c6ec

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the Solimba installer to bundle adware offers.

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:
5/23/2024 8:09:30 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Solimba.Contumar (M)
16.6.11.2

File size:
655.1 KB (670,816 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Language:
Language Neutral

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

Digital Signature
Signed by:
Contumar Empresarial s.l.

Authority:
GlobalSign nv-sa

Valid from:
2/2/2015 2:00:38 PM

Valid to:
9/24/2016 4:00:25 PM

Subject:
CN=Contumar Empresarial s.l., O=Contumar Empresarial s.l., L=Barcelona, S=Barcelona, C=ES

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

Serial number:
112119FE6AFB4FA7129F4F594CD3E07D5B21

File PE Metadata
Compilation timestamp:
5/28/2015 1:37:40 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
12288:C1heIHTECcwLbmMkSxB2Filn+rKibmeeJC5LOFKGE3KoHKWfw0d7x1+ZR9XP:4eIfz3ajKZeeJrmKoHu+l0H9XP

Entry address:
0x10FEC

Entry point:
E8, 7E, 96, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, F0, CB, 42, 00, E8, BE, 57, 00, 00, E8, 2C, 1D, 00, 00, 0F, B7, F0, 6A, 02, E8, 11, 96, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, BD, 4D, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.4721

Code size:
139 KB (142,336 bytes)

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

http://get.backbestfiles.com/n/.../File_Downloader.exe

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