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 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.
Publisher:
Firseria   (signed by FIRSERIA, S.L.)

Description:
Downloader

Version:
1.0.0.7

MD5:
109778502350e60a953128e30cd94d76

SHA-1:
4729f36fd21dbf503871dab8209e738e85a43b04

SHA-256:
57e95431f3d19de5ccb927774c0ef00293cbca9a07396a7ed559299ceaa370d6

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:
12/26/2024 12:52:41 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Solimba.FIRSERIA.Bundler (M)
16.2.3.0

File size:
227.8 KB (233,272 bytes)

Product version:
1.0.0.7

Copyright:
Copyright ©2013

Original file name:
installer

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

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

Digital Signature
Signed by:

Authority:
Thawte, Inc.

Valid from:
7/24/2013 4:00:00 AM

Valid to:
7/25/2014 3:59:59 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:
9/9/2013 10:24:51 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:vfOpM5uMf/j/lSCq0wWCBY5y3aiAGWd573slDD0Ig2:vmpM5t3nFCBY5dikLsVE2

Entry address:
0x57760

Entry point:
60, BE, 00, 50, 42, 00, 8D, BE, 00, C0, FD, 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:
204 KB (208,896 bytes)

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

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