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firefox_setup.exe

App

Download Blast

The application firefox_setup.exe, “App Setup ” by Download Blast has been detected as a potentially unwanted program by 5 anti-malware scanners. The program is a setup application that uses the Inno Setup installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from cdn.downloadsterfiles.net.
Publisher:
Software Web   (signed by Download Blast)

Product:
App

Description:
App Setup

MD5:
21ac42e1e36b9dcf6beb4246815e5a92

SHA-1:
34158fc6c2138b68a58d07b2a8efb6f48eba11f2

SHA-256:
c086ac602efeb5b6fd1c8d871f1aef78c0a3417d72a149014bf35ccde6c72187

Scanner detections:
5 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Analysis date:
11/15/2024 6:14:16 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Trojan.InstallCore.1151
9.0.1.0260

ESET NOD32
Win32/InstallCore.TP potentially unwanted (variant)
9.12067

herdProtect (fuzzy)
variant of java_setup(1).exe
2015.9.17.16

Malwarebytes
PUP.Optional.Installcore
v2015.09.17.04

Reason Heuristics
PUP.installCore.DownloadBlast.Installer (M)
15.8.9.6

File size:
899.8 KB (921,400 bytes)

Product version:
3.5.0

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\firefox_setup.exe

Digital Signature
Signed by:
Download Blast

Authority:
COMODO CA Limited

Valid from:
2/26/2015 7:00:00 PM

Valid to:
2/26/2017 6:59:59 PM

Subject:
CN=Download Blast, O=Download Blast, STREET="1930 Village Center Circle #3-1234", L=Las Vegas, S=NV, PostalCode=89134, C=US

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

Serial number:
00F7A728BDE0E8DDCD6B6A9632ED2C24F8

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:sy/SGDvxlXdKHztFQlVh/BvqJCSkMbVkHGe/L4JeEK8NTh:sy6+vqzHQh/BvqcSROHBQX1

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9066

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

Code size:
39.5 KB (40,448 bytes)

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

http://cdn.downloadsterfiles.net/c?x=DFqdtvIBXo9IMP1GWzOsNU wApsa1Z/guYQWM GNa3M=&c=Y2ySlkGcmdZaDx2jhdGY7H5djMFL3E7jM1zR/PMaTLdXX6STNiYZ6F9DKgi/AefQG8wWGwbvFl5xgs8/W0U8Pjh3gnyzT5DVTfYb1vcP3UWnKqbWqy6oIc7rn4WoaZoufsteyX1Co1PAqidUFIu16g==&fallback_url=http://download-installer.cdn.mozilla.net/pub/firefox/releases/38.0.5/win32/.../Firefox Setup Stub 38.0.5.exe&downloadAs=Firefox_Setup.exe

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