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isobuster.exe

Apps-manager

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 isobuster.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.-.Installer · sl  (signed by FIRSERIA, S.L.)

Product:
Apps-manager

Description:
Installer

Version:
3.1.22.6

MD5:
bc68bdf1be9940c4e1f03a2954ee1760

SHA-1:
3bce553cfa365953c283bc7b5cdd81ab3c3c9b7b

SHA-256:
6fd8becb0c777b8fad3c354b62d77a488584197e89134cef64ee2d8ea4c13e7b

Scanner detections:
1 / 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:
5/4/2024 3:53:23 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Solimba.FIRSERIA.Bundler (M)
16.2.9.8

File size:
572.2 KB (585,920 bytes)

Product version:
3.1.21

Copyright:
copyright © 2014

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Language:
Language Neutral

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

Digital Signature
Signed by:
FIRSERIA, S.L.

Authority:
Thawte, Inc.

Valid from:
7/25/2014 7:00:00 AM

Valid to:
7/24/2016 6:59:59 AM

Subject:
CN="FIRSERIA, S.L.", O="FIRSERIA, S.L.", L=Badalona, S=Barcelona, C=ES

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
7658ACC15B33D93ABD5A967181DEF901

File PE Metadata
Compilation timestamp:
8/1/2014 10:38:19 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
12288:/XsW07m4bPNTOclidjeuzf9sFYimqqhn/y8ar4cxI/+:/Xj01NTOdbwV5q9mDxV

Entry address:
0xDFEC

Entry point:
E8, AE, 6C, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 88, 6E, 42, 00, E8, FE, 15, 00, 00, E8, 7F, 6E, 00, 00, 0F, B7, F0, 6A, 02, E8, 41, 6C, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, 0A, 65, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.7267  (probably packed)

Code size:
114 KB (116,736 bytes)

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

http://dl.exfilesdesk.com/n/.../IsoBuster.exe

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