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nsxcf55.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 nsxcf55.tmp by Somoto has been detected as adware by 16 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:
f9e842b557952d3bdada67c879799622

SHA-1:
4cd53f37c4aef78424e64ba9b0232919afdfec59

SHA-256:
278b174061c0a82417998ac9128388e9abfbfc07cc90eba3a2cbfe1e90e774df

Scanner detections:
16 / 68

Status:
Adware

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

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/30/2024 1:43:09 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.Somoto
2014.12.24

Avira AntiVirus
APPL/Somoto.Gen2
7.11.197.162

avast!
Win32:Somoto-R [PUP]
2014.9-141227

AVG
Generic
2015.0.3247

Baidu Antivirus
Adware.Win32.Somoto
4.0.3.141227

Dr.Web
Trojan.Packed.28357
9.0.1.0361

ESET NOD32
Win32/Somoto
8.10923

K7 AntiVirus
Unwanted-Program
13.188.14426

Kaspersky
not-a-virus:Downloader.Win32.Agent
14.0.0.2731

Malwarebytes
PUP.Optional.Somoto.A
v2014.12.27.05

McAfee
Artemis!F9E842B55795
5600.6903

Panda Antivirus
Generic Malware
14.12.27.05

Qihoo 360 Security
HEUR/QVM42.0.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.Somoto.K
14.12.27.17

Sophos
Somoto BetterInstaller
4.98

Trend Micro House Call
TROJ_GEN.R0C1H07LN14
7.2.361

File size:
279.8 KB (286,480 bytes)

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

Common path:
C:\users\{user}\appdata\local\temp\nsxcf55.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:kQIURTXJq34pNMc5m1jJSZxietiLbVzDMT4cfRahzYBgSVKAe23ZTZiCHvS3ul57:kso34jnNLituDSYA23ZNpzlJbJe8Q0

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 nsxcf55.tmp has been seen being distributed by the following URL.

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

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