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firefox_dsetup.exe

META., JSC

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application firefox_dsetup.exe by META., JSC has been detected as a potentially unwanted program 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 installCore installer. The installer is marketed through download protals and search ads as the free Mozilla Firefox web browser but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
META., JSC  (signed and verified)

MD5:
5122f3cc225e05f24764fabe15a19f1b

SHA-1:
2225bb40013d2b9c6c27286771800b3ecc29827d

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
4/16/2024 5:06:15 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.METAJSC.Installer (M)
16.2.28.8

File size:
611.6 KB (626,272 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Digital Signature
Signed by:
META., JSC

Authority:
COMODO CA Limited

Valid from:
11/30/2012 7:00:00 AM

Valid to:
12/1/2013 6:59:59 AM

Subject:
CN="META., JSC", O="META., JSC", STREET="B49, Duy Tan Street, Dich Vong Hau Ward, Cau Giay District", L=Hanoi, S=Hanoi, PostalCode=--, C=VN

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00AEB911FEC8E8CFE1A51FB4237872B0FF

File PE Metadata
Compilation timestamp:
6/20/1992 5:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:/MJfsGCJWTKf1Qta52uZsC80nHuMIaGKGkFQ2CO9cfwwBrFk/WgqO:/MJfsVkTumtaMuqCLHuMI9KLWfwkeug

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

Entropy:
7.7691

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
36 KB (36,864 bytes)

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

http://files.downloadsmart.net/i/1006/14542/.../firefox_dsetup.exe

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