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nsaf6b1.tmp

SITE ON SPOT Ltd.

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 nsaf6b1.tmp by SITE ON SPOT 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.starcatacherx.com.
Publisher:
SITE ON SPOT Ltd.  (signed and verified)

Version:
1.0.0.1

MD5:
d1a9222fd94d85c6210b00ba487dd9a8

SHA-1:
ba26f95df7c774949af2b2c2910f53520387a978

SHA-256:
92101e368cca690f2ce2502127e53cdfe5683c0f6319cdc8c1b0e17c964baf35

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:
5/3/2024 5:09:02 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Somoto.SITEONSPOT.Bundler (M)
16.2.4.14

File size:
420.2 KB (430,264 bytes)

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

Common path:
C:\users\{user}\appdata\local\temp\nsaf6b1.tmp

Digital Signature
Signed by:
SITE ON SPOT Ltd.

Authority:
Thawte, Inc.

Valid from:
6/27/2013 9:00:00 PM

Valid to:
6/28/2015 8:59:59 PM

Subject:
CN=SITE ON SPOT Ltd., O=SITE ON SPOT Ltd., L=Tel Aviv, S=NA, C=IL

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
3EE11B140A803DE260823157A875B8C5

File PE Metadata
Compilation timestamp:
12/5/2009 8:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:YsxFYq5pQXd8nLj1fBmNjRTT+bAibtBWvcmt02e6YM6cfv27M5WLpst4koW:RFYqIXsLJfBWRwbBQ03M6cv5WLCoW

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 nsaf6b1.tmp has been seen being distributed by the following URL.

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

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