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winrarfree.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 winrarfree.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 WinRAR archiver but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
·Firseria·sl·  (signed by FIRSERIA, S.L.)

Version:
1.0.0.13

MD5:
84bdc28b66c5de415855a0a63938c98e

SHA-1:
08e0828ef6e861b2ae8fae0cbc656ec235446885

SHA-256:
568eac51fe7db672933879d38b77cbb43ba6bcb1c6b8a1e3fed8886a6aeebb54

Scanner detections:
29 / 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:
4/26/2024 7:21:50 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Application.Bundler.Firseria.1
865

Agnitum Outpost
PUA.Firseria
7.1.1

AhnLab V3 Security
PUP/Win32.Firseria
2014.09.23

Avira AntiVirus
APPL/Firseria.Gen
7.11.145.130

avast!
Win32:Firseria-A [PUP]
2014.9-140922

AVG
AdInstaller.Firseria
2015.0.3343

Bitdefender
Gen:Application.Bundler.Firseria.1
1.0.20.1325

Bkav FE
W32.MancamiLTA.Trojan
1.3.0.4959

Clam AntiVirus
Win.Trojan.Firseria-6
0.98/19418

Comodo Security
Application.Win32.Solimba.J
18179

Dr.Web
Adware.Downware.1433
9.0.1.0265

Emsisoft Anti-Malware
Gen:Application.Bundler.Firseria
14.09.22

ESET NOD32
Win32/FirseriaInstaller (variant)
8.9729

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

F-Secure
Gen:Application.Bundler.Firseria
11.2014-22-09_2

G Data
Gen:Application.Bundler.Firseria
14.9.24

herdProtect (fuzzy)
variant of free download manager.exe (Adware)
2014.12.4.17

IKARUS anti.virus
not-a-virus:Downloader.Win32.Morstar
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.176.11896

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

Malwarebytes
PUP.Optional.Firseria
v2014.09.22.01

MicroWorld eScan
Gen:Application.Bundler.Firseria.1
15.0.0.795

Reason Heuristics
PUP.FIRSERIASL.K
14.9.22.12

Rising Antivirus
PE:PUF.FirseriaInstaller@CV!1.9C54
23.00.65.14920

Sophos
Solimba Installer
4.98

SUPERAntiSpyware
Adware.Firseria/Variant
10344

Vba32 AntiVirus
Downware.Morstar
3.12.26.0

VIPRE Antivirus
DownloadMR
28650

Zillya! Antivirus
Downloader.Firser.Win32.4
2.0.0.1929

File size:
164.3 KB (168,248 bytes)

Product version:
1.0.0.13

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\winrarfree.exe

Digital Signature
Signed by:
FIRSERIA, S.L.

Authority:
Thawte, Inc.

Valid from:
7/24/2013 1:00:00 AM

Valid to:
7/25/2014 12:59:59 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:
10/10/2013 10:12:54 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:CiSVipBoNdGhm5P+0he9xagDexm6UJdme3HgrLpbPJG5h:9iilhmIQODDHBJdmOHIFs

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:
7.8794

Packer / compiler:
ASPack v1.08.04

Code size:
101 KB (103,424 bytes)

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