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matthi.exe

Sub Shop Application

yearsoft

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application matthi.exe by yearsoft has been detected as adware by 3 anti-malware scanners.
Publisher:
yearsoft  (signed and verified)

Product:
Sub Shop Application

Version:
1.0.0.1

MD5:
d9303e14596d19f2c683d464407866ba

SHA-1:
9801c45cd722aad93c8a3ea7ae788a9412fb8557

SHA-256:
536c0f65e2522084d9d121a2034404e56d7ef3630d0e0cd4d4b1542c232195f4

Scanner detections:
3 / 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:
11/19/2025 4:00:00 AM UTC  (today)

Scan engine
Detection
Engine version

Malwarebytes
PUP.Optional.SubShop.A
v2014.01.29.11

Reason Heuristics
PUP.yearsoft.G
14.8.7.21

Trend Micro House Call
TROJ_GEN.F47V0121
7.2.29

File size:
3.7 MB (3,913,760 bytes)

Product version:
1.1.1.0

Copyright:
yearsoft. All rights reserved.

Original file name:
Sub Shop

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\roaming\matthi\matthi.exe

Digital Signature
Signed by:
yearsoft

Authority:
Thawte, Inc.

Valid from:
6/21/2013 9:00:00 AM

Valid to:
6/22/2014 8:59:59 AM

Subject:
CN=yearsoft, OU=IT Team, O=yearsoft, L=Ansan-si, S=Gyeonggi-do, C=KR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
1D640099747B7B0113E4E8A226D9C798

File PE Metadata
Compilation timestamp:
12/23/2013 4:05:26 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
98304:no0jvkW68b7+XXgwtupmPH83rJFLOAkGkzdnEVomFHKnP8W:fMD8IwpmPHcFLOyomFHKnP8W

Entry address:
0x143A06

Entry point:
E8, 26, CE, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 58, AD, 5B, 00, E8, C4, 19, 00, 00, E8, 93, 67, 00, 00, 0F, B7, F0, 6A, 02, E8, B9, CD, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, AE, 9E, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
6.7458

Code size:
1.4 MB (1,491,968 bytes)

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