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softwareinstallation.exe

The application softwareinstallation.exe has been detected as a potentially unwanted program by 12 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 downloads.downloadster.org a web site host known to distribute potentially unwanted software operated by Downloadster.
MD5:
d9de094eabd3d2a42de4fcc0f032dcff

SHA-1:
85669fbd03dc7dfe340bf91c76975770d349c9ed

SHA-256:
be2bc9f8e7dc0b04b7c4546b60d2b10fd05f19791ad77148f5e2c4e1f0cf88b0

Scanner detections:
12 / 68

Status:
Potentially unwanted

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

Analysis date:
4/27/2024 3:48:44 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.OutBrowse
7.1.1

AhnLab V3 Security
PUP/Win32.OutBrowse
2015.06.01

Avira AntiVirus
PUA/Outbrowse.Gen
8.3.1.6

avast!
Evo-gen [Susp]
150525-2

Dr.Web
Threat.Undefined
9.0.1.05190

ESET NOD32
Win32/OutBrowse.M potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
5/31/2015

F-Prot
W32/Outbrowse.B.gen
v6.4.7.1.166

G Data
Win32.Application.OutBrowse
15.5.25

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
0.30.24.1636

Total Defense
Win32/Tnega.EKIKMED
37.1.62.1

VIPRE Antivirus
Threat.4150696
40552

File size:
102 KB (104,406 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\softwareinstallation.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):
3072:agXdZt9P6D3XJOCN5Ky/9XO3jR0eWSzUu/0WA:ae349NUQ9OzRgW/cj

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:
7.6709

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file softwareinstallation.exe has been seen being distributed by the following URL.

http://downloads.downloadster.org/download.php?id=24453dd9bea6c8d0da87b22857d60d2d9cf557b6&z=8&p=eyJweSI6ImRvIiwicnMiOiJnIiwicnQiOiJkIiwiYyI6InVzIiwibyI6IndpbjciLCJiIjoiY2gzMyIsInVfaWQiOiJkb181MzI0N2NjYjQ4ZjMxNS40ODA5NjA3MS4wYmExZmJmZTQxNmM5NDcxNGVhNWQyNGFmZTQyODk5ZSIsInBhX2lkIjoiOCIsInN0X2lkIjoiMCIsInNwX2lkIjoiMDAwMC0wODEzNyIsInRzIjoxMzk0OTAwMTcxLCJrdyI6ImZyZWUgZG93bmxvYWQgYWxsIGJyb3dzZXIiLCJjdSI6IiIsImNhIjpudWxsfQ

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