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utilpacfunction.exe

PacFunction

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utilpacfunction.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)

Version:
1.0.5486.15075

MD5:
e0de4fcad08bc90966c332045ec56d56

SHA-1:
77dff5ea23909b781489a85df8e8afbbb8d1f6e2

SHA-256:
ebbb0131893248587805d4041559d09e2c439ea80babbfb858ab522ca129b9cc

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
11/27/2024 4:36:20 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.5.21

File size:
516.7 KB (529,136 bytes)

Product version:
1.0.5486.15075

Original file name:
PacFunction2015010816.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\pacfunction\bin\utilpacfunction.exe

Digital Signature
Signed by:
PacFunction

Authority:
VeriSign, Inc.

Valid from:
12/23/2014 1:00:00 AM

Valid to:
2/22/2016 12:59:59 AM

Subject:
CN=PacFunction, 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:
577EA5DC8266D5CCDB3FA17D795517BD

File PE Metadata
Compilation timestamp:
1/8/2015 5:22:38 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x80E06

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...
 
[+]

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

Code size:
508 KB (520,192 bytes)

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