utilprimarycolor.exe

Primary Color

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utilprimarycolor.exe by Primary Color has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “Update Primary Color”.
Publisher:
Primary Color  (signed and verified)

Version:
1.0.5608.33169

MD5:
9fd5cd5570c4fb0abc5f26b4d1172320

SHA-1:
44ea4772898f18ff007894859b3c70636ea35322

SHA-256:
e390c78d315b851783c87bad21bc09cfbd60e1a068e4e7103b569ee0690bfa06

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:
5/15/2024 6:21:43 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.14.13

File size:
645.2 KB (660,728 bytes)

Product version:
1.0.5608.33169

Original file name:
PrimaryColor2015051102.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\primary color\bin\utilprimarycolor.exe

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
1/15/2015 1:00:00 AM

Valid to:
1/16/2016 12:59:59 AM

Subject:
CN=Primary Color, O=Primary Color, 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:
25DC34062844409A5E421392BA5A17B2

File PE Metadata
Compilation timestamp:
5/11/2015 4:25:46 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
11.0

.NET CLR dependent:
Yes

Entry address:
0xA103E

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:
636.5 KB (651,776 bytes)

Service
Display name:
Update Primary Color

Type:
Win32OwnProcess


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