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kmp_3.8.0.122.exe

Softonic Downloader

Softonic International

This is the Download Manager localized to Spanish that bundles the original software from the Softonic.com web site along with additional offers, mostly ad-supported browser extensions and utilities. While the original product is most likely clean, the Softonic Downloader is considered a PUP. The application kmp_3.8.0.122.exe by Softonic International has been detected as a potentially unwanted program by 12 anti-malware scanners. The program is a setup application that uses the Softonic Downloader installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from sd-cf.en.softonic.com and multiple other hosts.
Publisher:
Softonic   (signed by Softonic International)

Product:
Softonic Downloader

Version:
1.40.6.0

MD5:
1c9b9e68fc848965cd9da69d278ef2ba

SHA-1:
a241c8f4b991cbbda1f39edab1b5054c1360ddf8

SHA-256:
c5b299018025961e7c6776fb41d6224ebdb082cd6278e993b3122011ed17e4df

Scanner detections:
12 / 68

Status:
Potentially unwanted

Explanation:
Softonic Downloader is a download and install manager that provides users to the Softonic web site the ability to download 3rd-party software. During the installation the installer will show sponsored offers such as adware type toolbars and web browser extensions as well as other potentially unwanted applications. This type of software is typically known as an adware co-bundler. The downloader does not modify the original software.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/23/2024 8:13:28 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Softonic
7.1.1

Baidu Antivirus
Adware.Win32.SoftonicDownloader
4.0.3.1445

Comodo Security
Application.Win32.Agent.SOFE
18054

Dr.Web
Adware.Downware.2454
9.0.1.095

ESET NOD32
Win32/SoftonicDownloader (variant)
8.9639

Fortinet FortiGate
Riskware/Softonicdownloader
4/5/2014

Malwarebytes
PUP.Optional.Softonic.A
v2014.04.05.06

McAfee
Artemis!1C9B9E68FC84
5600.7169

Reason Heuristics
Bundler.PPI.Softonic.K
14.4.5.18

Rising Antivirus
PE:Malware.Obscure/Heur!1.9E03
23.00.65.14403

Trend Micro House Call
TROJ_GEN.F47V0405
7.2.95

VIPRE Antivirus
Softonic Downloader
28062

File size:
378.1 KB (387,208 bytes)

Product version:
1.40.6.0

Copyright:
Copyright (C) 2014

Original file name:
SoftonicDownloader.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Softonic Downloader

Language:
Spanish (Spain, International Sort)

Common path:
C:\users\{user}\appdata\local\temp\kmp_3.8.0.122.exe

Digital Signature
Signed by:
Softonic International

Authority:
VeriSign, Inc.

Valid from:
7/3/2013 3:00:00 AM

Valid to:
10/3/2015 2:59:59 AM

Subject:
CN=Softonic International, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Softonic International, L=Barcelona, S=Barcelona, C=ES

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:
67C1FF44C765ABDA26027A6DCA52BA11

File PE Metadata
Compilation timestamp:
3/24/2014 5:50:33 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:6p/+u6pKpXQoVqfBP1J7xTy04vFaIvI66zZuOP/rDt4iAUKFCx8NVlMW8eGoSyji:h1cBQzJ7hy0UwfHaNDVlfGoSyi3

Entry address:
0x52CC70

Entry point:
60, BE, 00, A0, 8D, 00, 8D, BE, 00, 70, B2, FF, 57, 89, E5, 8D, 9C, 24, 80, C1, FF, FF, 31, C0, 50, 39, DC, 75, FB, 46, 46, 53, 68, 00, AA, 52, 00, 57, 83, C3, 04, 53, 68, 5F, 2C, 05, 00, 56, 83, C3, 04, 53, 50, C7, 03, 03, 00, 02, 00, 90, 90, 90, 90, 90, 55, 57, 56, 53, 83, EC, 7C, 8B, 94, 24, 90, 00, 00, 00, C7, 44, 24, 74, 00, 00, 00, 00, C6, 44, 24, 73, 00, 8B, AC, 24, 9C, 00, 00, 00, 8D, 42, 04, 89, 44, 24, 78, B8, 01, 00, 00, 00, 0F, B6, 4A, 02, 89, C3, D3, E3, 89, D9, 49, 89, 4C, 24, 6C, 0F, B6, 4A...
 
[+]

Entropy:
7.9618  (probably packed)

Code size:
336 KB (344,064 bytes)

The file kmp_3.8.0.122.exe has been seen being distributed by the following 3 URLs.

http://sd-cf.en.softonic.com/3348000/3348762/.../kmplayer_downloader.exe

http://dplus.en.softonic.com/ud-client/1841/3348000/.../kmplayer_downloader.exe

http://kmplayer-korea.en.softonic.com/universaldownloader-launch?WL=1841

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

TCP (HTTP):
Connects to par10s11-in-f3.1e100.net  (173.194.40.163:80)

TCP (HTTP):
Connects to par10s11-in-f26.1e100.net  (173.194.40.186:80)

TCP (HTTP):
Connects to par10s11-in-f25.1e100.net  (173.194.40.185:80)

TCP (HTTP):
Connects to en.softonic.com  (46.28.209.13:80)

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