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PacFunction.FirstRun.exe

FirstRun

PacFunction

The Yontoo branded FirstRun executable is distributed as part of a Yontoo product bundle and is desigend to install components of this ad-supported (injection) program as well as 'call home' to inform the server that the extension was installed and may request additional instructions. The application PacFunction.FirstRun.exe by PacFunction has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
PacFunction  (signed and verified)

Product:
FirstRun

Version:
1.0.0.0

MD5:
015c8c5d02096e1d65602e482dd1baa2

SHA-1:
c4e50c4e583a89375b6e461002126eb10a692372

SHA-256:
2ce39709ddd166cee72eefac112d0c8d7909a4ab41e48b93442247bc51d96c81

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Part of the Yontoo ad injection web browser add-on.

Analysis date:
4/25/2024 11:07:49 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.8.23

File size:
1.1 MB (1,121,568 bytes)

Product version:
1.0.0.0

Copyright:
Copyright © 2014

Original file name:
PacFunction.FirstRun.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\pacfunction\pacfunction.firstrun.exe

Digital Signature
Signed by:
PacFunction

Authority:
VeriSign, Inc.

Valid from:
1/9/2014 5:30:00 AM

Valid to:
1/10/2015 5:29:59 AM

Subject:
CN=PacFunction, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=PacFunction, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
4DF47FADF68D2EB9B8A7923DCCC176FF

File PE Metadata
Compilation timestamp:
4/9/2014 1:52:42 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

Entry address:
0x111842

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
7.9254

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
1.1 MB (1,112,576 bytes)

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