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firefoxsetup.exe

The application firefoxsetup.exe has been detected as a potentially unwanted program by 2 anti-malware scanners. The program is a setup application that uses the Inno Setup installer, however the file is not signed with an authenticode signature from a trusted source. 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 www.best-browser.org.
MD5:
7aa046058cd27cc21d96ae4018bc1731

SHA-1:
8b74700708b7f4aa5d36e4e7414ffe756b0bb47e

SHA-256:
55968b0577c66f149f1284838776214cfae9dc382b626e822b22d960e9b6646f

Scanner detections:
2 / 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:
11/27/2024 2:43:37 PM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/InstallCore.AEO.gen potentially unwanted application
8.0.319.0

Reason Heuristics
PUP.InstallCore.EST (M)
16.7.16.2

File size:
788.3 KB (807,204 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

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

File PE Metadata
Compilation timestamp:
6/19/1992 7:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:CovpNU8wQUE4QS1IpUn5OXX2Tjuh5kYT3R42OIhCRM1GUxxeb0HRiFll9Stg+1MO:CovKHR11imTCd/1GUxx5cFlDKMzy5WF

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
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Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

http://www.best-browser.org/?dl=1&meta=DmlyDKDJekWBDd7J dAJhd5C m0WedNyDK50IXDlfSDphXAmD3vpDZ0m rcWDK4m7dAWVVAm7dREhKVuvmAWASDChTMm7dlChV83NTMzATAROZnmI3cWedtleX2JcmxWvm10hXtt7XxjIHxFcrVWvm1uhXtw r5jDK1l ExWvmN0hXt07XvEDXxWvmF0hXtpDCNJ Exl Ei6xH1YIKDTDK5y7dg6VH0mDXPwcj1Y7KNlIKxWvm5whXtPDHsJcdl0IKWufSDC2j1YDrVdIKNlfS7m7K2pDZ1fNzcRAZ71OZC3Ajn=

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