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nsrf309.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 nsrf309.tmp by Somoto has been detected as adware by 14 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:
84100641bd9d0e2c95a7b66d2ced2292

SHA-1:
66c1270c7097b5b88750efea64f6b6735c5ab257

SHA-256:
f16ce199d871b9093031521e0ef683befbba893668ef72f22a60ee086d3c6c65

Scanner detections:
14 / 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 4:53:19 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.101Alemi
2014.11.24

Avira AntiVirus
APPL/Somoto.Gen2
7.11.188.92

avast!
Somoto-R [PUP]
141119-1

AVG
Generic
2015.0.3281

Baidu Antivirus
Adware.Win32.Somoto
4.0.3.141123

Dr.Web
Trojan.Packed.28357
9.0.1.05190

ESET NOD32
Win32/Somoto.G potentially unwanted application
7.0.302.0

K7 AntiVirus
Unwanted-Program
13.185.14098

Kaspersky
not-a-virus:Downloader.Win32.Agent
15.0.0.543

Malwarebytes
PUP.Optional.Somoto.A
v2014.11.23.01

Panda Antivirus
PUP/MultiToolbar.A
14.11.23.01

Qihoo 360 Security
Win32/Virus.Downloader.192
1.0.0.1015

Reason Heuristics
PUP.Somoto.K
14.11.23.13

Sophos
Somoto BetterInstaller
4.98

File size:
279.7 KB (286,424 bytes)

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

Common path:
C:\users\{user}\appdata\local\temp\nsrf309.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:cso3puOpmaipxyrJqUiJw27lCDzG+mIFPBDyZOZMgpD9:03phpmhxywUiJw3f9mI9BDKOZH9

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...
 
[+]

Entropy:
7.8924

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file nsrf309.tmp has been seen being distributed by the following URL.

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

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