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install.exe

The application install.exe has been detected as a potentially unwanted program by 11 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:
8b9a6a3e7fce81e298f925af909e54cd

SHA-1:
5954aa96ca6d17bfdea8fb0e04c9f9fe9b2e6e69

SHA-256:
a2d4ff9b34b15c8e970f58a016c56ef2dc44a484a50423bce0718364ee149ee5

Scanner detections:
11 / 68

Status:
Potentially unwanted

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

Analysis date:
1/15/2025 9:20:23 AM UTC  (today)

Scan engine
Detection
Engine version

AegisLab AV Signature
AdWare.W32.OutBrowse
2.1.4+

Agnitum Outpost
PUA.OutBrowse
7.1.1

Avira AntiVirus
APPL/Downloader.Gen
7.11.179.192

Dr.Web
Adware.Downware.7093
9.0.1.05190

ESET NOD32
Win32/OutBrowse.AC potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
10/20/2014

Malwarebytes
PUP.Optional.OutBrowse
v2014.10.20.02

McAfee
Adware-OutBrowse
5600.6971

NANO AntiVirus
Trojan.Win32.OutBrowse.ddvyee
0.28.2.62841

Vba32 AntiVirus
Hoax.PornoAsset
3.12.26.3

VIPRE Antivirus
Threat.4823950
33706

File size:
550.5 KB (563,744 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:dVjUnYdbT2wW+c1fFbftgCin2JI6J8bc1YT/AAUHnOikKWFW:dRUnY03lgd2J0bqAUsKWw

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=Z0dXVpZD04NDUyOTI2Zi1mYTUwLTQ2Y2MtOGE4ZC0yYmMzZDg1NTU0NGU

http://get.default-page.com/.../Get?p=3022&d=1775&l=1694&n=0&d1=1&si=0&filename=install&clickid=Z0dXVpZD04NDUyOTI2Zi1mYTUwLTQ2Y2MtOGE4ZC0yYmMzZDg1NTU0NGU

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