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nst678d.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 nst678d.tmp by Somoto has been detected as adware by 15 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:
9a6be84a948c7d9447f26bda2859d3c4

SHA-1:
a647877a70c8efc78843c48e961c5cdeba5034f5

SHA-256:
bbd46a05df9df7a3e1e9a90693f01c00ad8c54f98dccc7a426e7e770a846ef64

Scanner detections:
15 / 68

Status:
Adware

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

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:
11/27/2024 4:38:25 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.101Alemi
2014.11.25

Avira AntiVirus
APPL/Somoto.Gen2
7.11.188.128

avast!
Win32:Somoto-R [PUP]
2014.9-141129

AVG
Generic
2015.0.3276

Baidu Antivirus
Adware.Win32.Somoto
4.0.3.141129

Dr.Web
Trojan.Packed.28357
9.0.1.0333

ESET NOD32
Win32/Somoto
8.10773

K7 AntiVirus
Unwanted-Program
13.185.14120

Malwarebytes
PUP.Optional.Somoto.A
v2014.11.29.09

McAfee
Artemis!9A6BE84A948C
5600.6932

Panda Antivirus
PUP/MultiToolbar.A
14.11.29.09

Qihoo 360 Security
Win32/Virus.Downloader.192
1.0.0.1015

Reason Heuristics
PUP.Somoto.K
14.11.29.9

Sophos
Somoto BetterInstaller
4.98

Trend Micro House Call
Suspicious_GEN.F47V1123
7.2.333

File size:
279.7 KB (286,432 bytes)

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

Common path:
C:\users\{user}\appdata\local\temp\nst678d.tmp

Digital Signature
Signed by:
Somoto Ltd.

Authority:
Thawte, Inc.

Valid from:
7/2/2014 3:00:00 AM

Valid to:
7/3/2015 2:59:59 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:
12/6/2009 12:50:46 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:0so37Eto0GOAbn4v/tiQwH98LCEbuD4cK052npmz:83QtovA/tiUOWuk05Lz

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 nst678d.tmp has been seen being distributed by the following URL.

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

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