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bestvideodownloader.exe

KBM2 Installer

sterkly LLC

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application bestvideodownloader.exe by sterkly has been detected as adware by 6 anti-malware scanners.
Publisher:
sterkly LLC  (signed and verified)

Product:
KBM2 Installer

Version:
2.5.1.0

MD5:
524acc9e15e88d239783d178b8023d09

SHA-1:
f6999a3c8285a384b2b4a0a69acf0766ac424ddf

SHA-256:
a29b09f57b7e6dfade099b5cff1b8b0a165808e1bd52bd6892e5e1258de3d2f7

Scanner detections:
6 / 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:
5/6/2024 6:40:58 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Plugin.85
9.0.1.0185

ESET NOD32
Win32/KBM (variant)
8.8590

McAfee
Artemis!524ACC9E15E8
5600.7079

Reason Heuristics
PUP.Installer.sterkly.W
14.7.4.13

Trend Micro House Call
TROJ_GEN.F47V0715
7.2.185

VIPRE Antivirus
sterkly LLC
19742

File size:
544.1 KB (557,176 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\bestvideodownloader.exe

Digital Signature
Signed by:
sterkly LLC

Authority:
VeriSign, Inc.

Valid from:
1/21/2013 7:00:00 PM

Valid to:
2/21/2015 6:59:59 PM

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:
6/27/2013 3:57:18 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:+gq6uX5c0RzWguzZylIAllGVytvHdKme7IZLpYvQ5y:+R610ZluglqytYmesZL4QI

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:
6.2272

Code size:
342.5 KB (350,720 bytes)

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