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mediaplayer.exe

KBM2 Installer

Best Download Manager

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

Product:
KBM2 Installer

Version:
2.5.1.0

MD5:
964cd09d28ec374c59cf6f1b0581bd79

SHA-1:
a84ec265f117ff3330fc9645635d32817fbf6b75

SHA-256:
ca9ae66df18f7db730200843af763799482e8a8f401a1fed93ec254faaca5e9a

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:
11/9/2024 12:20:15 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.BestDown.Installer (M)
16.4.17.1

File size:
537.1 KB (550,024 bytes)

Product version:
2.5.1.0

Copyright:
(c) Best Download Manager . 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:
Best Download Manager

Authority:
VeriSign, Inc.

Valid from:
7/25/2013 5:30:00 AM

Valid to:
7/26/2015 5:29:59 AM

Subject:
CN=Best Download Manager, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Best Download Manager, 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:
5F3BBF9CAABCE7C81AB69ABF7371A064

File PE Metadata
Compilation timestamp:
8/8/2013 12:55:15 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:Fgq6uX5c0RzWguzZylIAllGVytvHdKme7IZopYHgQvk:FR610ZluglqytYmesZoQgQ8

Entry address:
0x3A3C0

Entry point:
E8, 0E, 6F, 00, 00, E9, 89, FE, FF, FF, 3B, 0D, D0, 0B, 47, 00, 75, 02, F3, C3, E9, 95, 6F, 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, D9, 35, 00, 00, 6A, 16, 5E, 89, 30, E8, 6C, 75, 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, 66, 70, 00, 00, 83, C4, 0C, EB, C7, FF, 75, 0C, 6A, 00, FF, 75, 08, E8, B4, 31, 00, 00, 83, C4, 0C, 83, 7D, 10, 00, 74, BB, 39, 75, 0C, 73, 0E, E8, 8F, 35, 00, 00, 6A...
 
[+]

Entropy:
6.2709

Code size:
342.5 KB (350,720 bytes)

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