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winrarsetup.exe

DownloadShield

The application winrarsetup.exe by DownloadShield has been detected as adware by 7 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.os-downloads.com and multiple other hosts.
Publisher:
DownloadShield  (signed and verified)

MD5:
1e3dc382d70dd7ac50e99909ed7c92fa

SHA-1:
0fc7751f82ff9fc6bb10bc5d4482e540ec86f582

SHA-256:
8a05d5501020f5b48d8c48b868cca00987ee8900584016036ac62fe8487b0bce

Scanner detections:
7 / 68

Status:
Adware

Explanation:
May bundle various unwanted software without adequate user consent.

Analysis date:
4/19/2024 9:57:10 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
MultiBundle
2016.0.2990

Bkav FE
W32.HfsAdware
1.3.0.7133

NANO AntiVirus
Riskware.Nsis.Dloader.dvvnkj
0.30.24.3283

Reason Heuristics
PUP.DownloadShield.Installer (M)
15.9.11.2

SUPERAntiSpyware
Trojan.Agent/Gen-Downloader
9637

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.4

VIPRE Antivirus
DownloadShield
43520

File size:
209.8 KB (214,872 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
DownloadShield

Authority:
VeriSign, Inc.

Valid from:
3/10/2013 8:00:00 PM

Valid to:
5/9/2016 7:59:59 PM

Subject:
CN=DownloadShield, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=DownloadShield, L=San Jose, 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:
309C9F4C0975E9792AECED60B8346C13

File PE Metadata
Compilation timestamp:
8/29/2014 12:10:27 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
3072:JAWEqcrBSgme34k+yK78Qn2SlAPz3q5mU56X0sIwtFHqkICvwMQhUJUpJn5oLQ:JkZfmE4P2AIY51sfLxhQhqIxF

Entry address:
0x3350

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, A8, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, 23, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 3B, 74, 40, 00, FF, 15, 58, 71, 40, 00, 68, 30, 74, 40, 00, 68, C0, 33, 42, 00, E8, 15, 24, 00, 00, FF, 15, B0, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 03, 24, 00, 00...
 
[+]

Entropy:
7.6355

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file winrarsetup.exe has been seen being distributed by the following 2 URLs.

http://www.os-downloads.com/.../WinRARSetup.exe

http://www.os-downloads.com/ca/.../downloadarc.php

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