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nslf39e.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 nslf39e.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.frogyearleap.com.
Publisher:
SITE ON SPOT Ltd.  (signed and verified)

Version:
1.0.0.1

MD5:
2f349b72dad094094187adbf3b718be4

SHA-1:
1b68b56c5f7d46ec2f3701fa0f10ea1f681233f1

SHA-256:
6dc83bfd52e618150862362a7185db4b296163b55a4fc8c54dacfffdfb2e5f95

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 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:
4/24/2024 9:19:12 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Somoto.SITEONSPOT.Bundler (M)
16.2.22.7

File size:
420.2 KB (430,296 bytes)

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

Common path:
C:\users\{user}\appdata\local\temp\nslf39e.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 7:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:4sxF/QFR0eEMtp1isZH10uQ3EYhoyaI/h6idfHmlAhu/tzmpmKO:xF/QFCeNisn0uMJayaoci9wtzms

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 nslf39e.tmp has been seen being distributed by the following URL.

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

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