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nscf0a4.tmp

Somoto Ltd.

Somoto uses a monetization platform known as the 'Better Installer' to provide the ability of 3rd party developers to bundle various adware packages through an affiliate pay-per-install program. The file nscf0a4.tmp by Somoto has been detected as adware by 9 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 additional third party applications, mostly adware toolbars, with legitimate softare and may be installed without adequate user consent.
Publisher:
Somoto Ltd.  (signed and verified)

MD5:
a044f97e32eef60ca98edb61be00e1b6

SHA-1:
77637e410e4ecaf6b6155f757c188a214df38d9e

SHA-256:
e5461cb7f9b3768b35676fdaa0b2d90cd6f7df28270cc865a1506aec9ee1e26b

Scanner detections:
9 / 68

Status:
Adware

Explanation:
Uses the Somoto 'BetterInstaller' to bundle additional (unwanted) software during install without adequate consent.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
5/10/2025 9:43:50 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.101Alemi
2014.11.07

Avira AntiVirus
APPL/Somoto.Gen2
7.11.183.142

avast!
Win32:Somoto-R [PUP]
2014.9-141107

AVG
Generic
2015.0.3298

Dr.Web
Trojan.Packed.28357
9.0.1.0311

K7 AntiVirus
Unwanted-Program
13.185.13930

Malwarebytes
PUP.Optional.Somoto.A
v2014.11.07.11

Reason Heuristics
PUP.Somoto.K
14.11.7.11

Sophos
Somoto BetterInstaller
4.98

File size:
205.6 KB (210,504 bytes)

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

Common path:
C:\users\{user}\appdata\local\temp\nscf0a4.tmp

Digital Signature
Signed by:
Somoto Ltd.

Authority:
Thawte, Inc.

Valid from:
7/2/2014 2:00:00 AM

Valid to:
7/3/2015 1:59:59 AM

Subject:
CN=Somoto Ltd., O=Somoto Ltd., L=Tel Aviv, S=Israel, C=IL

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
6A0C39D0252522A9C448352858ACAACB

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):
3072:hQIURTXJq3Z+kh8J9clwNVKah88w6OCsQ4EhC5PYaxlgEQMD0I6hPFf:hso3vh8b3VKaMGoPYnEQMDR6PFf

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 nscf0a4.tmp has been seen being distributed by the following URL.

http://sub.smanres.info/installers/bi_downloader/.../setup.exe

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