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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 by FIRSERIA, S.L has been detected as adware by 29 anti-malware scanners. 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

Version:
1.0.0.10

MD5:
5899d4ffdc19ad6036c4241dbac8b9d3

SHA-1:
72f488c5adf27f12afe1ceee5323cc6c7d3b0ae0

SHA-256:
f8b71d5100ac749bf6a70567b505f88628653ea28db69a455a614a38dc9681e4

Scanner detections:
29 / 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:
4/19/2024 8:51:40 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Application.Bundler.Firseria.1
886

Agnitum Outpost
PUA.Downloader
7.1.1

AhnLab V3 Security
PUP/Win32.Firseria
2014.09.02

Avira AntiVirus
APPL/Firseria.A.13
7.11.170.102

avast!
Win32:Firseria-A [PUP]
140813-1

AVG
Adware AdInstaller.Firseria
2014.0.4015

Bitdefender
Gen:Application.Bundler.Firseria.1
1.0.20.1225

Comodo Security
TrojWare.Win32.Trojan.Obfuscated.~EN
19393

Dr.Web
Adware.Downware.1433
9.0.1.05190

Emsisoft Anti-Malware
Gen:Application.Bundler.Firseria
9.0.0.4324

ESET NOD32
Win32/FirseriaInstaller.C potentially unwanted application
7.0.302.0

F-Prot
W32/Morstar.C.gen
v6.4.7.1.166

F-Secure
Gen:Application.Bundler.Firseria
11.2014-02-09_3

G Data
Gen:Application.Bundler.Firseria
14.9.24

IKARUS anti.virus
not-a-virus:Downloader.Win32.Morstar
t3scan.1.7.5.0

K7 AntiVirus
Unwanted-Program
13.183.13230

Kaspersky
not-a-virus:Downloader.Win32.Firser
15.0.0.494

Malwarebytes
PUP.Optional.Firseria
v2014.09.02.12

MicroWorld eScan
Gen:Application.Bundler.Firseria.1
15.0.0.735

Panda Antivirus
Adware/Firseria
14.09.02.12

Qihoo 360 Security
Malware.QVM18.Gen
1.0.0.1015

Quick Heal
TrojanDownloader.Morstar.O3
9.14.14.00

Reason Heuristics
PUP.Installer.FIRSERIASL.H
14.9.1.23

Rising Antivirus
PE:PUF.FirseriaInstaller@CV!1.5C42
23.00.65.14831

Sophos
Solimba Installer
4.98

Total Defense
Win32/Tnega.CAOfAID
37.0.11156

Vba32 AntiVirus
Downware.Morstar
3.12.26.3

VIPRE Antivirus
Threat.4782980
32210

Zillya! Antivirus
Downloader.Morstar.Win32.15
2.0.0.1908

File size:
164.3 KB (168,248 bytes)

Product version:
1.0.0.10

Copyright:
Copyright(c) 2013

Original file name:
installer.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Language:
Language Neutral

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

Digital Signature
Signed by:
FIRSERIA, S.L.

Authority:
Thawte, Inc.

Valid from:
7/23/2013 6:00:00 PM

Valid to:
7/24/2014 5:59:59 PM

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:
9/30/2013 3:42:29 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:7aOBvudlu7lFxe4aO2daluPWEu3ZQAqIhJV9JsNyYojF3iI5yo:GgWlu7nxe4aF1PHFyhJVnsNbocI5j

Entry address:
0x76117

Entry point:
60, E8, 00, 00, 00, 00, 58, 05, 5A, 0B, 00, 00, 8B, 30, 03, F0, 2B, C0, 8B, FE, 66, AD, C1, E0, 0C, 8B, C8, 50, AD, 2B, C8, 03, F1, 8B, C8, 57, 51, 49, 8A, 44, 39, 06, 88, 04, 31, 75, F6, 2B, C0, AC, 8B, C8, 80, E1, F0, 24, 0F, C1, E1, 0C, 8A, E8, AC, 0B, C8, 51, 02, CD, BD, 00, FD, FF, FF, D3, E5, 59, 58, 8B, DC, 8D, A4, 6C, 90, F1, FF, FF, 51, 2B, C9, 51, 51, 8B, CC, 51, 66, 8B, 17, C1, E2, 0C, 52, 57, 83, C1, 04, 51, 50, 83, C1, 04, 56, 51, E8, 5E, 00, 00, 00, 8B, E3, 5E, 5A, 2B, C0, 89, 04, 32, B4, 10...
 
[+]

Entropy:
7.8530

Packer / compiler:
ASPack v1.08.04

Code size:
101 KB (103,424 bytes)

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