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bookwright.exe

BookWright

Blurb, Inc.

The application bookwright.exe, “BookWright Setup ” by Blurb has been detected as a potentially unwanted program 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 Inno Setup installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from www.blurb.de and multiple other hosts.
Publisher:
Blurb, Inc.   (signed by Blurb, Inc.)

Product:
BookWright

Description:
BookWright Setup

MD5:
b58f929f58c1a3a7d7589cee6216096b

SHA-1:
9a450ecbb8d08c0d9a5bcf2b7faa014b622327a4

SHA-256:
8c3d6a19877dae09efc546f0dda403fb84775352cd36ad845751c7a8098773ec

Scanner detections:
1 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Analysis date:
7/4/2025 2:40:06 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.CSH (L)
17.1.26.1

File size:
27 MB (28,350,712 bytes)

Product version:
1.1.150

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

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

Digital Signature
Signed by:
Blurb, Inc.

Authority:
DigiCert Inc

Valid from:
7/23/2014 1:00:00 AM

Valid to:
9/25/2017 1:00:00 PM

Subject:
CN="Blurb, Inc.", O="Blurb, Inc.", L=San Francisco, S=California, C=US

Issuer:
CN=DigiCert SHA2 Assured ID Code Signing CA, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0122698A76CD257048905201CC74A8EA

File PE Metadata
Compilation timestamp:
6/19/1992 11:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9999

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

The file bookwright.exe has been seen being distributed by the following 2 URLs.

http://www.blurb.de/.../bookwright?platform=win

http://fr.blurb.ca/.../bookwright?platform=win

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