dropbox.exe

Apps-manager

FIRSERIA, S.L.

The setup program uses the Firseria/Solimba AppInstaller (DownloadMR) which is a monetization download manager that bundles additional adware offers, typically by wrapping legitimate applications. The application dropbox.exe by FIRSERIA, 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. The installer uses the Solimba download manager to push adware offers during the download and setup process. Bundled adware includes search and shopping web browser toolbars. The installer is marketed through download protals and search ads as Dropbox but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Firseria.-.Installer · sl  (signed by FIRSERIA, S.L.)

Product:
Apps-manager

Description:
Installer

Version:
3.1.22.12

MD5:
a4b19b55f6829ad787a8e1b3371f3272

SHA-1:
88c83be65a2fe1899f33500275071df4a5277718

SHA-256:
4942d300e1ea2e740f85a3a29b2acc54fc10b1f112800c839bef67ad906aa0a0

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the Solimba installer to bundle adware offers.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/25/2024 2:44:01 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Solimba (M)
16.8.2.16

File size:
564.2 KB (577,728 bytes)

Product version:
3.1.21

Copyright:
copyright © 2014

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

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

Digital Signature
Signed by:

Authority:
Thawte, Inc.

Valid from:
7/24/2014 7:00:00 PM

Valid to:
7/23/2016 6:59:59 PM

Subject:
CN="FIRSERIA, S.L.", O="FIRSERIA, S.L.", L=Badalona, S=Barcelona, C=ES

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
7658ACC15B33D93ABD5A967181DEF901

File PE Metadata
Compilation timestamp:
8/20/2014 3:57:02 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
12288:tTHa2Vj4T4rVhPsKjsusDWTAgYRubaQziKiQW4cR:tTHZ4T4hN5M/QzDVUR

Entry address:
0xDFDC

Entry point:
E8, AC, 6C, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 08, 6E, 42, 00, E8, FE, 15, 00, 00, E8, 7D, 6E, 00, 00, 0F, B7, F0, 6A, 02, E8, 3F, 6C, 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, 08, 65, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.7248  (probably packed)

Code size:
114 KB (116,736 bytes)

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

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