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richika.exe

Sub Shop

yearsoft

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application richika.exe, “Sub Shop Application” by yearsoft has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
yearsoft  (signed and verified)

Product:
Sub Shop

Description:
Sub Shop Application

Version:
1.0.0.2

MD5:
0a17da448eb7b52897ca6d6a51559b94

SHA-1:
0e89a24953f3b31a4b2c030091634468ac6435e6

SHA-256:
526f1805b1e1c15321436a45a38e08b5c368847b86cbd5511ce9187b38f72e88

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:
4/19/2024 2:38:31 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.yearsoft (M)
16.2.14.18

File size:
2.2 MB (2,311,712 bytes)

Product version:
3.0.1.4

Copyright:
yearsoft

Original file name:
Sub Shop

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\roaming\richika\richika.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:
11/28/2013 7:45:13 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
49152:xLtIXxMoOif453wtSvZB3IlUCj1tTP5AVbdVqtvXcA:1twjOif4mSvZB3G9fTP5AVbk

Entry address:
0x1401E8

Entry point:
E8, 44, CE, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 88, 68, 5B, 00, E8, 72, 19, 00, 00, E8, AB, 67, 00, 00, 0F, B7, F0, 6A, 02, E8, D7, 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, CC, 9E, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
6.0281

Code size:
1.4 MB (1,476,608 bytes)

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