» 7zipsetup.exe
Overview
Analysis
File Details
Network (3)

7zipsetup.exe

KBM2 Installer

Best Download Manager

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application 7zipsetup.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. This is a setup and installation application and has been known to bundle potentially unwanted software. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address api.yontoo.com on port 80 using the HTTP protocol.

File name:

7zipsetup.exe

Publisher:

Best Download Manager (signed by Best Download Manager)

Product:

KBM2 Installer

Version:

2.5.1.0

MD5:

5f93463d58e4711fb9fad51e6c4d4fc8

SHA-1:

cd3ce944f4408b9e93386710a5692c6f843896b5

SHA-256:

dc819367baf8ea78e301d9d8bb8acd09a1a3edb43e24b3c087b30fe324e25ef8

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:

4/25/2024 3:29:28 PM UTC (today)

Scan engine

Detection

Engine version

Reason Heuristics

PUP.Yontoo (M)

16.10.13.4

File size:

527.1 KB (539,784 bytes)

Product version:

2.5.1.0

Original file name:

KBM2.exe

File type:

Executable application (Win32 EXE)

Language:

English (United States)

Common path:

C:\users\{user}\appdata\local\temp\7zipsetup.exe

Digital Signature

Signed by:

Best Download Manager

Authority:

VeriSign, Inc.

Valid from:

7/25/2013 2:00:00 AM

Valid to:

7/26/2015 1:59:59 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:

8/7/2013 9:25:15 PM

OS version:

5.1

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

10.0

CTPH (ssdeep):

12288:tgq6uX5c0RzWguzZylIAllGVytvHdKme7IZopYOQvx:tR610ZluglqytYmesZopQJ

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... 
[+]

Code size:

342.5 KB (350,720 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):

Connects to wac.edgecastcdn.net (72.21.81.13:80)

TCP (HTTP):

Connects to service.yontoo.com (8.25.35.148:80)

TCP (HTTP):

Connects to api.yontoo.com (8.25.35.15:80)

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