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mediaplayer.exe

KBM2 Installer

sterkly LLC

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

Product:
KBM2 Installer

Version:
2.5.1.0

MD5:
abf92ebd9d6f97b2d0ee83d7fe6bbc56

SHA-1:
18ab654d35ae9d75a522e1a71af9e42436947b7b

SHA-256:
fbf6c2f6f9b943049a7a560e9b8c3d0b2ee88156943f2c3856fa6d91f1b1b972

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:
12/23/2024 4:46:35 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.sterkly.Installer (M)
16.4.25.22

File size:
534.6 KB (547,448 bytes)

Product version:
2.5.1.0

Copyright:
(c) Sterkly LLC. All rights reserved.

Original file name:
KBM2.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\mediaplayer.exe

Digital Signature
Signed by:
sterkly LLC

Authority:
VeriSign, Inc.

Valid from:
1/22/2013 5:45:00 AM

Valid to:
2/22/2015 5:44:59 AM

Subject:
CN=sterkly LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=sterkly LLC, L=Carlsbad, 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:
113C6B2C72DEF110BE64B2ABBC52861E

File PE Metadata
Compilation timestamp:
3/6/2013 12:57:09 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:mjw5VPp0aVBkkE/ZmJyZfY2U6/bKKFZuvQDw:mjw5sanpELZfY2UcKKZuvQ8

Entry address:
0x39CB4

Entry point:
E8, AA, 6C, 00, 00, E9, 89, FE, FF, FF, 3B, 0D, D0, 0B, 47, 00, 75, 02, F3, C3, E9, 31, 6D, 00, 00, 8B, FF, 55, 8B, EC, 56, 8B, 75, 14, 85, F6, 75, 04, 33, C0, EB, 61, 83, 7D, 08, 00, 75, 13, E8, 75, 33, 00, 00, 6A, 16, 5E, 89, 30, E8, 08, 73, 00, 00, 8B, C6, EB, 48, 83, 7D, 10, 00, 74, 16, 39, 75, 0C, 72, 11, 56, FF, 75, 10, FF, 75, 08, E8, 02, 6E, 00, 00, 83, C4, 0C, EB, C7, FF, 75, 0C, 6A, 00, FF, 75, 08, E8, 50, 2F, 00, 00, 83, C4, 0C, 83, 7D, 10, 00, 74, BB, 39, 75, 0C, 73, 0E, E8, 2B, 33, 00, 00, 6A...
 
[+]

Entropy:
6.2688

Code size:
340.5 KB (348,672 bytes)

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