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winzip.exe

Avitzur Efrati Management Initiatives Ltd

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application winzip.exe, “Program Software Web Setup ” by Avitzur Efrati Management Initiatives 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 installCore installer. The file has been seen being downloaded from cdn2.downloadastro.com.
Publisher:
%PROD_NAME%  (signed by Avitzur Efrati Management Initiatives Ltd)

Product:
%PROD_NAME%

Description:
Program Software Web Setup

Version:
1.0.5.a0.1_34556

MD5:
1862084f304cfe42bcb90679d4116fb8

SHA-1:
56ec9afcdd21e64ede77216683c04e226756e284

SHA-256:
806095e55f5999d8c3a9607b419abe925a0a02ef54c37b40ac93ba27b5a0fb6c

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:
5/22/2024 12:17:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.1.5.1

File size:
743.3 KB (761,184 bytes)

Product version:
1.0.5.a0.1_34556

Copyright:
%PROD_NAME%

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:
Avitzur Efrati Management Initiatives Ltd

Authority:
DigiCert Inc

Valid from:
1/12/2015 2:00:00 AM

Valid to:
1/20/2016 2:00:00 PM

Subject:
CN=Avitzur Efrati Management Initiatives Ltd, O=Avitzur Efrati Management Initiatives Ltd, L=Petah Tikva, S=Petah Tikva, C=IL

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

Serial number:
0ECF1F40DAE092F2BFC5CB2FFCA12F72

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.8167

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

Code size:
37 KB (37,888 bytes)

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

http://cdn2.downloadastro.com/?ic_user_id=842

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