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ezcontactbook_4_3_0_12_setup.exe

E-Z Contact Book

Dmitri Karshakevich

The application ezcontactbook_4_3_0_12_setup.exe, “E-Z Contact Book Setup ” by Dmitri Karshakevich 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 files.downloadnow.com.
Publisher:
Dmitri Karshakevich   (signed by Dmitri Karshakevich)

Product:
E-Z Contact Book

Description:
E-Z Contact Book Setup

MD5:
0c5f35479007dd2676386a5931e517ce

SHA-1:
4d9f8d86dd9dc49bc2bd33b8343baf36da106e5f

SHA-256:
f8dbd2b09fda61602eeba1e3497bf78aa0152dafb2333c76ea5630906f417385

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:
8/4/2025 3:03:43 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.CSH (L)
16.12.21.15

File size:
5.1 MB (5,326,880 bytes)

Product version:
4.3.0.12

Copyright:
Dmitri Karshakevich

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\ezcontactbook_4_3_0_12_setup.exe

Digital Signature
Signed by:
Dmitri Karshakevich

Authority:
Symantec Corporation

Valid from:
2/10/2015 8:00:00 AM

Valid to:
4/11/2017 7:59:59 AM

Subject:
CN=Dmitri Karshakevich, OU=Individual Developer, O=No Organization Affiliation, L=Stoney Creek, S=Ontario, C=CA

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
136CA7B9548C76A5A8D266225794CD69

File PE Metadata
Compilation timestamp:
6/20/1992 6:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0xAA98

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 2E, 86, FF, FF, E8, 35, 98, FF, FF, E8, 9C, 9B, FF, FF, E8, B7, 9F, FF, FF, E8, 56, BF, FF, FF, E8, ED, E8, FF, FF, E8, 54, EA, FF, FF, 33, C0, 55, 68, 69, B1, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 32, B1, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, D0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, C2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, 24, 93, FF, FF, 8D, 55, F0, 33, C0, E8, 66, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9991

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

Code size:
40.5 KB (41,472 bytes)

The file ezcontactbook_4_3_0_12_setup.exe has been seen being distributed by the following URL.

http://files.downloadnow.com/s/software/15/65/54/.../EZContactBook_4_3_0_12_Setup.exe

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