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nstf5ec.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 nstf5ec.tmp by Site on Spot Limited has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. 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.holahopadupa.com.
Publisher:
Site on Spot Limited  (signed and verified)

Version:
1.0.0.1

MD5:
2f1988ab1ffe4be9a114a7477f72c124

SHA-1:
61404e233db3e5d365dd0eec4e937628b900ff26

SHA-256:
bdfe331a95b528df447384d27f273df3b2285f09e1b6850b55ce82836d3e2bef

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
5/26/2024 2:33:43 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Somoto.SiteonSpot.Bundler (M)
15.6.28.9

File size:
422.3 KB (432,464 bytes)

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

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\nstf5ec.tmp

Digital Signature
Signed by:
Site on Spot Limited

Authority:
COMODO CA Limited

Valid from:
7/27/2014 8:00:00 PM

Valid to:
7/28/2015 7:59:59 PM

Subject:
CN=Site on Spot Limited, O=Site on Spot Limited, STREET=5 Daniel Samburski Street, L=Tel Aviv, S=Israel, PostalCode=69584, C=IL

Issuer:
CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00D6B33C3BD9AFC239524BC60DB819F561

File PE Metadata
Compilation timestamp:
12/5/2009 7:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:RFLtHB7Oqne6E4t8ZMfgQ1+cT29VK3auksVGfi:RFhHB9ne6ht8ZMf+E2D+aI+i

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 nstf5ec.tmp has been seen being distributed by the following URL.

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

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