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coupontime.expext.dll

Coupon Time

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module coupontime.expext.dll by Coupon Time has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Coupon Time  (signed and verified)

Version:
1.0.5877.2864

MD5:
09ec8117707c0f42ae3a9842a8ea635e

SHA-1:
85aaf9ab51fd9af936ddd81309cc2abbf753a20c

SHA-256:
97924596a951cda06a67ceb2b3be8954b6cdd591cacfae601464a25ad3e29a2b

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:
5/20/2024 6:24:56 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.4.0

File size:
712.7 KB (729,840 bytes)

Product version:
1.0.5877.2864

Original file name:
2016020309.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\coupon time\bin\plugins\coupontime.expext.dll

Digital Signature
Signed by:
Coupon Time

Authority:
VeriSign, Inc.

Valid from:
3/18/2015 5:00:00 AM

Valid to:
3/18/2016 4:59:59 AM

Subject:
CN=Coupon Time, O=Coupon Time, 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:
5580F4EA46A972B28E383D02966AEBA8

File PE Metadata
Compilation timestamp:
2/3/2016 2:35:34 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
11.0

.NET CLR dependent:
Yes

Entry address:
0xB2166

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:
6.6111

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

Code size:
704.5 KB (721,408 bytes)

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