dropbox.exe

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, “Installer Application” 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. With this installer, users are expecting to download Dropbox but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
Firseria  (signed by FIRSERIA, S.L.)

Description:
Installer Application

Version:
1, 0, 0, 1

MD5:
dac024f5efe682b833fbb1cadfac7cd7

SHA-1:
d71640e2c55d64185c2bed116217e7b24303ee67

SHA-256:
3ea3dcb674a474749e3c9626dc75faa23ace02b946d5c9dab25730c90b17a728

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the Solimba installer to bundle adware offers.

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:
4/25/2024 8:59:41 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Solimba (M)
16.8.3.12

File size:
193.3 KB (197,944 bytes)

Product version:
1, 0, 0, 1

Copyright:
Copyright (C) 2013

Original file name:
installer.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Digital Signature
Signed by:

Authority:
Thawte, Inc.

Valid from:
7/24/2013 2:00:00 AM

Valid to:
7/25/2014 1:59:59 AM

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

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

Serial number:
73C4780FAC0CD497B0778732FB8AF673

File PE Metadata
Compilation timestamp:
8/20/2013 12:54:32 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
3072:XBoVZJ+5RlPM3rdS0v9QFJtbP1QGNJH7H8+yvX/q0ANX1W1GzIP:x2KM7dlv9Qx73H78pvvjSk0I

Entry address:
0x74E80

Entry point:
60, BE, 00, B0, 44, 00, 8D, BE, 00, 60, FB, FF, 57, EB, 0B, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89, C5, EB, 0B, 01, DB, 75, 07, 8B...
 
[+]

Packer / compiler:
UPX v0.89.6 - v1.02 / v1.05 -v1.24

Code size:
172 KB (176,128 bytes)

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

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