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nsl7f31.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 nsl7f31.tmp by Site on Spot Limited has been detected as adware by 7 anti-malware scanners. The program is a setup application that uses the Somoto BetterInstaller installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from sub.symiosisoak.com.
Publisher:
Site on Spot Limited  (signed and verified)

Version:
1.0.0.1

MD5:
525db0b979abc13506da29eca827c895

SHA-1:
f405640127d97d8153b4111937d931d0f9da7da6

SHA-256:
61480180e3a403859e841b013b1d99fa2a3c0253f941e1923400ffe6c2befc11

Scanner detections:
7 / 68

Status:
Adware

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:
12/26/2024 3:03:08 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
AdLoad.S
2016.0.3187

Baidu Antivirus
Adware.Win32.Somoto
4.0.3.15225

ESET NOD32
Win32/Somoto.G potentially unwanted
9.11230

K7 AntiVirus
Trojan
13.198.15076

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

Reason Heuristics
PUP.Bundler.Somoto
15.5.3.0

VIPRE Antivirus
Trojan.Win32.Generic
37884

File size:
418.2 KB (428,264 bytes)

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

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\nsl7f31.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):
6144:AsxF7v9CpuB8PP7bNaAC+06MXO0h5ydz2bLUEiW4B9Ca/JMKOxmue:5FDvcP7lC+roOMUl2XUEiD3JhO3e

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 nsl7f31.tmp has been seen being distributed by the following URL.

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

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