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essfaxsetup.exe

EssentialFax

Essential Fax Software

The application essfaxsetup.exe by Essential Fax Software 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 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 www.essentialfax.com.
Publisher:
Essential Fax Software   (signed by Essential Fax Software)

Product:
EssentialFax

Version:
1.83.0

MD5:
41d2ae719fe213f57a1bc9ab2794c284

SHA-1:
fe1ab328d6de610b502b8ae6a5c999deb5b99fad

SHA-256:
c5d9d5d592525c0c2304ba8ba02581fd7dfaef41fb3bcc4fb5a98dc3cf0d31fa

Scanner detections:
1 / 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:
6/2/2024 9:06:06 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.CSH (L)
16.12.5.13

File size:
11.6 MB (12,215,152 bytes)

Product version:
4.0

Copyright:
Copyright 2015, Essential Fax Software

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

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

Digital Signature
Signed by:
Essential Fax Software

Authority:
COMODO CA Limited

Valid from:
11/22/2015 7:00:00 PM

Valid to:
11/22/2018 6:59:59 PM

Subject:
CN=Essential Fax Software, O=Essential Fax Software, STREET=1050 E 2nd Street, L=Edmond, S=OK, PostalCode=73034, C=US

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

Serial number:
00C168CE3EAC2A83D14C45CA7687D61D8E

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):
196608:c4JTGEfxKfNU726ZYxv2O/V5+Z1Q1YyxZGvhbrkMO/ULNtg11u94l7OpgEFvzUk:tZT7Cxvh/+Z1AfGvhbrnSULNzEqp5FvZ

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, BF, A9, FF, FF, E8, 5E, 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...
 
[+]

Entropy:
7.9998

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

Code size:
37 KB (37,888 bytes)

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

http://www.essentialfax.com/.../essfaxsetup.exe

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