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nookstudy_setup.exe

NOOK Study

Barnesandnoble.com

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from customer-care.s3.amazonaws.com and multiple other hosts.
Publisher:
Barnes & Noble, Inc.  (signed by Barnesandnoble.com)

Product:
NOOK Study

Description:
NOOK Study Installer

Version:
2.1.2.28770

MD5:
daac08c1ae951edcf9f4546648ee904e

SHA-1:
964d9392b50df63901b9a6b28f8f0f5a6a36ab1f

SHA-256:
48fb48549313681daa92e570ebe0976ae2aa443c1b928fe5e89da52f12f6ff96

Scanner detections:
1 / 68

Status:
Clean  (1 probable false positive detection)

Explanation:
This is mosty likely a false positive detection, the file is probably clean.

Analysis date:
4/25/2024 4:24:50 AM UTC  (today)

Scan engine
Detection
Engine version

IKARUS anti.virus
Trojan-PWS.Win32.Tibia
t3scan.1.6.1.0

File size:
48.4 MB (50,747,832 bytes)

Copyright:
Copyright © 2009/2011 Barnes & Noble, Inc. All Rights Reserved.

Trademarks:
This Application is a trademark of Barnes & Noble, Inc.

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\nookstudy_setup.exe

Digital Signature
Signed by:
Barnesandnoble.com

Authority:
VeriSign, Inc.

Valid from:
12/11/2012 6:00:00 PM

Valid to:
12/13/2014 5:59:59 PM

Subject:
CN=Barnesandnoble.com, OU=Digital ID Class 3 - Microsoft Software Validation v2, OU=Digital Content, O=Barnesandnoble.com, L=New York, S=New York, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
4317D52B7803A2FCB8A32FCA806DA796

File PE Metadata
Compilation timestamp:
12/5/2009 4:53:24 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1572864:dIuTyHF1id7JQvovZ5J/NB5BeLGh6PA88:zok/QvoR5hNBiGh3

Entry address:
0x355E

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, B8, A7, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 80, 40, 00, 53, FF, 15, 88, 82, 40, 00, 6A, 08, A3, 98, 10, 43, 00, E8, D6, 2E, 00, 00, A3, E4, 0F, 43, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, E8, A7, 42, 00, FF, 15, 58, 81, 40, 00, 68, AC, A7, 40, 00, 68, E0, 07, 43, 00, E8, DC, 29, 00, 00, FF, 15, AC, 80, 40, 00, BF, 00, 70, 43, 00, 50, 57, E8, CA, 29, 00, 00...
 
[+]

Entropy:
7.9923

Packer / compiler:
Nullsoft install system v2.x

Code size:
25 KB (25,600 bytes)

The file nookstudy_setup.exe has been seen being distributed by the following 4 URLs.

https://customer-care.s3.amazonaws.com/.../NOOKstudy_Setup.exe

http://nookstudy.software.informer.com/.../

http://images.barnesandnoble.com/PResources/download/ereader2/sc/BN/.../NOOKstudy_Setup.exe

http://www.barnesandnoble.com/download/.../nookstudyPC.asp

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