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nsn81a1.tmp

Site on Spot Limited

This is the Somoto BetterInstaller, an installer that bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The file nsn81a1.tmp by Site on Spot Limited has been detected as adware by 23 anti-malware scanners. The program is a setup application that uses the Somoto BetterInstaller installer. Includes the Somoto BetterInstaller, an adware installer that will bundle offers for third party applications, mostly adware toolbars, with legitimate softare. These offers are typically installed onto users' PCs by default, but may include an option to 'opt-out' during or after the installation process.
Publisher:
Site on Spot Limited  (signed and verified)

Version:
1.0.0.1

MD5:
b3494ef0ab172970e30a87e9b7267f2b

SHA-1:
019aedab2ceca1a177f9cb0636fdefe71c7bbaf1

SHA-256:
357e0f589aae1adedca2b963df70296bd50b2558fad355b00a7e32ff9ee90828

Scanner detections:
23 / 68

Status:
Adware

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
3/14/2025 4:47:34 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Bundler.Somoto.AG
438

AhnLab V3 Security
PUP/Win32.Somoto
2015.10.02

Arcabit
Application.Bundler.Somoto.AG
1.0.0.568

AVG
AdLoad.S
2016.0.2916

Bitdefender
Application.Bundler.Somoto.AG
1.0.20.1640

Bkav FE
W32.HfsAdware
1.3.0.7237

Clam AntiVirus
Win.Adware.Somoto-2
0.98/21511

ESET NOD32
Win32/Somoto.G potentially unwanted
9.12346

F-Prot
W32/Trojan2.OUSK
v6.4.7.1.166

F-Secure
Application.Bundler.Somoto
11.2015-24-11_3

K7 AntiVirus
Unwanted-Program
13.210.17406

Kaspersky
not-a-virus:Downloader.Win32.Somato
14.0.0.1075

Malwarebytes
PUP.Optional.Somoto
v2015.11.24.01

McAfee
Artemis!B3494EF0AB17
5600.6572

MicroWorld eScan
Application.Bundler.Somoto.AG
16.0.0.984

NANO AntiVirus
Riskware.Nsis.Adware.dshbbp
0.30.26.3725

Panda Antivirus
Trj/CI.A
15.11.24.01

Qihoo 360 Security
Win32/Virus.Downloader.912
1.0.0.1015

Reason Heuristics
PUP.Somoto.SiteonSpot.Bundler (M)
15.11.24.1

Sophos
Generic PUA AB (PUA)
4.98

SUPERAntiSpyware
PUP.Somoto/Variant
9489

Vba32 AntiVirus
Downloader.Somato
3.12.26.4

VIPRE Antivirus
Trojan.Win32.Generic
44228

File size:
418.2 KB (428,208 bytes)

Bundler/Installer:
Somoto BetterInstaller (using Nullsoft Install System)

Common path:
C:\users\{user}\appdata\local\temp\nsn81a1.tmp

Digital Signature
Signed by:
Site on Spot Limited

Authority:
thawte, Inc.

Valid from:
1/28/2015 1:00:00 AM

Valid to:
7/10/2015 1:59:59 AM

Subject:
CN=Site on Spot Limited, O=Site on Spot Limited, L=Tel Aviv, S=Israel, C=IL

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
477E336D7B42EDDDED42DABF6FAB572F

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:BF7Otvyk2oS6ISBNSeM+Gy35rpGf0cV3UUU:BFgvO2IKSmGyprpmrVEUU

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 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, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file nsn81a1.tmp has been seen being distributed by the following URL.

http://sub.revereamillion.com/installers/bi_downloader/.../setup.exe

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