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64bit_win7_win8_win81_r273.exe

Realtek High Definition Audio Driver

Sevas-S LLC

The application 64bit_win7_win8_win81_r273.exe by Sevas-S has been detected as adware by 12 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. According to AVG, this software downloads additional adware offers during setup. The file has been seen being downloaded from ru.joydownload.com and multiple other hosts.
Publisher:
Sevas-S LLC  (signed and verified)

Product:
Realtek High Definition Audio Driver

Version:
1.0.0.0

MD5:
20bcf340d98f7e7ef1aab4c818d0a921

SHA-1:
a79f34549d0c9db9b59939a03f6b9b6ef9409528

SHA-256:
141af59c2750cebc775e3b1c7c0326ca31c41f54ef89b6ea167afe3b0f6078de

Scanner detections:
12 / 68

Status:
Adware

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
11/25/2024 8:28:53 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.OpenCandy
7.1.1

AVG
Downloader
2015.0.3476

Dr.Web
Adware.Downware.1446
9.0.1.0132

ESET NOD32
Win32/JoyDownloader
8.9790

K7 AntiVirus
Unwanted-Program
13.177.12041

Malwarebytes
PUP.Optional.OpenCandy
v2014.05.12.06

McAfee
Artemis!20BCF340D98F
5600.7132

Reason Heuristics
PUP.SevasS.AA
14.8.7.20

Rising Antivirus
PE:PUF.OpenCandy!1.9DE5
23.00.65.14510

Sophos
OpenCandy
4.98

Trend Micro House Call
TROJ_GEN.F47V0417
7.2.132

VIPRE Antivirus
Sevas-S Installer
29136

File size:
475.5 KB (486,872 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\64bit_win7_win8_win81_r273.exe

Digital Signature
Signed by:
Sevas-S LLC

Authority:
VeriSign, Inc.

Valid from:
2/23/2014 3:00:00 AM

Valid to:
3/26/2015 2:59:59 AM

Subject:
CN=Sevas-S LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Sevas-S LLC, L=Kyiv, S=Kyivska oblast, C=UA

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:
4B35AC223F4DB03D3B4C5368983A4B53

File PE Metadata
Compilation timestamp:
5/20/2013 2:52:54 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:faCD4AdvFhjs17FEUDTTup+Ts9PJYz5jtNcB+/TRfYs:JD4AZFhm7FjDHuzJYz5jtXTBYs

Entry address:
0x31B1

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, D8, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, 34, 71, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 08, A3, 58, 92, 42, 00, E8, 90, 2E, 00, 00, A3, A4, 91, 42, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, 58, 06, 42, 00, FF, 15, 7C, 71, 40, 00, 68, C0, 92, 40, 00, 68, A0, 81, 42, 00, E8, FB, 2A, 00, 00, FF, 15, 38, 71, 40, 00, BB, 00, 40, 43, 00, 50, 53, E8, E9, 2A, 00, 00...
 
[+]

Entropy:
7.8949

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file 64bit_win7_win8_win81_r273.exe has been seen being distributed by the following 3 URLs.

http://ru.joydownload.com/wi/Yzhuj0GmoEY42iDc-2rMEg/1399268080/1/3/1/.../64bit_Win7_Win8_Win81_R273.exe

http://www.joydownload.com/wi/6K2_RUKjyAic9WTDlTDErg/1398241990/1/3/1/.../64bit_Win7_Win8_Win81_R273.exe

http://www.joydownload.com/wi/X2-U3Hw6wydUfpEBr6hymw/1399769149/1/3/1/.../64bit_Win7_Win8_Win81_R273.exe

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