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skype.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 skype.exe by FIRSERIA, S.L has been detected as adware by 30 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.
Publisher:
Frserira s·l·  (signed by FIRSERIA, S.L.)

Description:
DownloadMnger

Version:
1.0.0.27

MD5:
9859d28a7b3f5446e264e8b0000029a2

SHA-1:
312cd0c2d196cd56a7ff61164b855d4e3690810a

SHA-256:
23d3b02076710469ddcdb4e2b6dc283879a3bff6ba6c66559b08dd9028fd868a

Scanner detections:
30 / 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 3:52:20 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Application.Bundler.Firseria.1
843

Agnitum Outpost
Trojan.Graftor
7.1.1

AhnLab V3 Security
PUP/Win32.Firseria
2014.10.16

Avira AntiVirus
TR/Crypt.ULPM.Gen
7.11.30.172

avast!
Win32:Firseria-A [PUP]
141003-0

AVG
Adware AdInstaller.Firseria
2014.0.4040

Baidu Antivirus
Adware.Win32.FirseriaInstaller
4.0.3.141015

Bitdefender
Gen:Application.Bundler.Firseria.1
1.0.20.1440

Comodo Security
Application.Win32.Solimba.J
19810

Dr.Web
Trojan.DownLoader10.61289
9.0.1.05190

Emsisoft Anti-Malware
Gen:Application.Bundler.Firseria
14.10.15

ESET NOD32
Win32/FirseriaInstaller.C potentially unwanted application
7.0.302.0

Fortinet FortiGate
Adware/Sality.MO
10/15/2014

F-Prot
W32/Firseria.A
4.6.5.141

F-Secure
Gen:Application.Bundler.Firseria
11.2014-15-10_4

G Data
Gen:Application.Bundler.Firseria
14.10.24

IKARUS anti.virus
not-a-virus:Downloader.Win32.Morstar
t3scan.1.7.8.0

K7 AntiVirus
Unwanted-Program
13.183.13690

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

Malwarebytes
PUP.Optional.Firseria
v2014.10.15.11

MicroWorld eScan
Gen:Application.Bundler.Firseria.1
15.0.0.864

NANO AntiVirus
Trojan.Win32.Morstar.crcqbt
0.28.2.62671

Qihoo 360 Security
Malware.QVM18.Gen
1.0.0.1015

Quick Heal
Trojandownloader.Morstar.O5
10.14.14.00

Reason Heuristics
PUP.FIRSERIASL.F
14.10.15.10

Rising Antivirus
PE:PUF.FirseriaInstaller@CV!1.9C54
23.00.65.141013

Sophos
Solimba Installer
4.98

Vba32 AntiVirus
Downware.Morstar
3.12.26.3

VIPRE Antivirus
Threat.4782980
33706

Zillya! Antivirus
Downloader.Morstar.Win32.9
2.0.0.1956

File size:
164.8 KB (168,760 bytes)

Product version:
3.0.24

Copyright:
copyright·©·2013

Original file name:
install·exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Language:
Language Neutral

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

Digital Signature
Signed by:
FIRSERIA, S.L.

Authority:
Thawte, Inc.

Valid from:
7/23/2013 9:00:00 PM

Valid to:
7/24/2014 8:59:59 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:
12/6/2013 6:37:39 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:GMe92LW1YQUzMqAl2X11uZaAgdUMTQJYG0LZsoGxM6iGqy/ESDJT/aQ8ytf03eW5:GL9PKQUelYrugAg2MyYs1izkEGOQ8ytf

Entry address:
0x72DF0

Entry point:
60, BE, 00, 10, 45, 00, 8D, BE, 00, 00, FB, FF, 57, 89, E5, 8D, 9C, 24, 80, C1, FF, FF, 31, C0, 50, 39, DC, 75, FB, 46, 46, 53, 68, 23, 03, 07, 00, 57, 83, C3, 04, 53, 68, ED, 1D, 02, 00, 56, 83, C3, 04, 53, 50, C7, 03, 03, 00, 02, 00, 90, 90, 90, 90, 90, 55, 57, 56, 53, 83, EC, 7C, 8B, 94, 24, 90, 00, 00, 00, C7, 44, 24, 74, 00, 00, 00, 00, C6, 44, 24, 73, 00, 8B, AC, 24, 9C, 00, 00, 00, 8D, 42, 04, 89, 44, 24, 78, B8, 01, 00, 00, 00, 0F, B6, 4A, 02, 89, C3, D3, E3, 89, D9, 49, 89, 4C, 24, 6C, 0F, B6, 4A...
 
[+]

Code size:
140 KB (143,360 bytes)

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

http://dl.downf468.com/n/.../Skype.exe

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