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. 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·s·l·  (signed by FIRSERIA, S.L.)

Version:
1.0.0.15

MD5:
4b779d436798518b8d400db403a89bb1

SHA-1:
4cbb0b8d13ed2a4fd4953b55260f68d4e92906dd

SHA-256:
f41e6682235eedf0382a7cc2eade6bdb3893d1e76286ceb54cdb26c8d29c394e

Scanner detections:
29 / 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:
5/11/2024 1:48:16 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Application.Bundler.Firseria.1
911

Agnitum Outpost
PUA.Downloader
7.1.1

AhnLab V3 Security
PUP/Win32.Firseria
2013.10.26

Avira AntiVirus
APPL/Firseria.Gen
7.11.109.114

avast!
Win32:Firseria-A [PUP]
2014.9-140807

AVG
AdInstaller.Firseria
2015.0.3419

Bitdefender
Gen:Application.Bundler.Firseria.1
1.0.20.1095

Clam AntiVirus
Win.Trojan.Firseria
0.98/19168

Comodo Security
TrojWare.Win32.Trojan.Obfuscated.~EN
17155

Dr.Web
Adware.Downware.1433
9.0.1.0190

ESET NOD32
Win32/FirseriaInstaller (variant)
8.8965

F-Prot
W32/Backdoor2.HTEZ
v6.4.7.1.166

F-Secure
Gen:Application.Bundler.Firseria
11.2014-07-08_5

G Data
Gen:Application.Bundler.Firseria
14.8.24

IKARUS anti.virus
not-a-virus:Downloader.Win32.Morstar
t3scan.2.2.29

K7 AntiVirus
Backdoor
13.176.11322

Kaspersky
not-a-virus:Downloader.Win32.Morstar
14.0.0.3441

Malwarebytes
PUP.Optional.Firseria
v2014.07.09.06

McAfee
PUP-FFT!E861FF250F95
5600.7045

MicroWorld eScan
Gen:Application.Bundler.Firseria.1
15.0.0.657

NANO AntiVirus
Trojan.Win32.Morstar.cslwyy
0.28.0.58101

Qihoo 360 Security
Win32/Trojan.Adware.37e
1.0.0.1015

Quick Heal
TrojanDownloader.Morstar.O3
8.14.14.00

Reason Heuristics
PUP.FIRSERIASL.H
14.8.15.15

Rising Antivirus
PE:PUF.FirseriaInstaller@CV!1.9C54
23.00.65.14805

Sophos
Solimba Installer
4.94

Vba32 AntiVirus
Downloader.Morstar
3.12.24.3

VIPRE Antivirus
DownloadMR
22714

Zillya! Antivirus
Downloader.Morstar.Win32.1
2.0.0.1777

File size:
165.3 KB (169,272 bytes)

Product version:
1.0.0.15

Copyright:
Copyright(c) 2013

Original file name:
installer·exe

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:
7/24/2013 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:
10/14/2013 4:23:15 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:M4HCWau/PlYeuL7ZLFh6Ca6cbL9l2hzB3fJCC6j8+Er6ez4:DiI/PlY37ZLF4Ca6WABqBOvs

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...
 
[+]

Packer / compiler:
ASPack v1.08.04

Code size:
101 KB (103,424 bytes)

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