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install.exe

The application install.exe has been detected as a potentially unwanted program by 15 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs. The file has been seen being downloaded from get.down1oad4desktop.com and multiple other hosts.
MD5:
950b1ad22322d8bcf67d3e2f57b03ecd

SHA-1:
b836555e8ee3ad6049d5e225c3f8510c9755db72

SHA-256:
728d93fea84a2a09dcebb84df646d5b672e80b51d42e9ae72ea5c95929a82c3f

Scanner detections:
15 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
1/15/2025 9:18:30 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.OutBrowse
7.1.1

Avira AntiVirus
APPL/Downloader.Gen
7.11.200.132

avast!
OutBrowse-AE [PUP]
150102-1

Dr.Web
Trojan.Packed.28682
9.0.1.05190

ESET NOD32
Win32/OutBrowse.AC potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
1/11/2015

K7 AntiVirus
Unwanted-Program
13.190.14603

Malwarebytes
PUP.Optional.OutBrowse
v2015.01.11.01

McAfee
Adware-OutBrowse
5600.6889

NANO AntiVirus
Trojan.Win32.OutBrowse.ddvyee
0.30.0.64448

Qihoo 360 Security
Malware.QVM06.Gen
1.0.0.1015

Trend Micro House Call
TROJ_GEN.R00UC0OIT14
7.2.11

Trend Micro
TROJ_GEN.R00UC0OIT14
10.465.11

Vba32 AntiVirus
Hoax.PornoAsset
3.12.26.3

VIPRE Antivirus
Threat.4150696
36504

File size:
550.5 KB (563,740 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

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

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:dsUnYdbT2wW+c1fFbftgCin2JI6J8bc1YT/AAUHnOikKWFf:dsUnY03lgd2J0bqAUsKW1

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9761

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://get.down1oad4desktop.com/.../Get?p=3022&d=1775&l=1694&n=0&d1=1&si=0&filename=install&clickid=ZxdXVpZD01N2I0MzUzNC0zYTJlLTRlNWItYjc0Mi00YTJjYWE0NDcxNDc

http://get.default-page.com/.../Get?p=3022&d=1775&l=1694&n=0&d1=1&si=0&filename=install&clickid=ZxdXVpZD01N2I0MzUzNC0zYTJlLTRlNWItYjc0Mi00YTJjYWE0NDcxNDc

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