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microsoft_word.exe

Application installer

Avitzur Efrati Initiatives and Management Ltd

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application microsoft_word.exe, “Application installer Setup ” by Avitzur Efrati Initiatives and Management 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. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from cdn.downloadastroppcfiles.com.
Publisher:
Installer   (signed by Avitzur Efrati Initiatives and Management Ltd)

Product:
Application installer

Description:
Application installer Setup

MD5:
879065ac428bd5bb9a5e495e47b60ddc

SHA-1:
4a28436f73125604a83eab79c7e3a61c876c7bd7

SHA-256:
c13c28d9ef1b3159c3c1caad8ce9d9e93b9d200c304b0f5ad888d3e816166b39

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 also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
11/24/2024 2:12:23 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.2.11.2

File size:
747.4 KB (765,312 bytes)

Product version:
3.0.7

Copyright:
Software

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\microsoft_word.exe

Digital Signature
Signed by:
Avitzur Efrati Initiatives and Management Ltd

Authority:
COMODO CA Limited

Valid from:
1/14/2015 2:00:00 AM

Valid to:
1/15/2016 1:59:59 AM

Subject:
CN=Avitzur Efrati Initiatives and Management Ltd, O=Avitzur Efrati Initiatives and Management Ltd, STREET="Operation Dekel St, 13", L=Petah Tikva, S=Israel, PostalCode=4934629, C=IL

Issuer:
CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
4CEE4E88CD7722B05DF0129CF008860C

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:
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...
 
[+]

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

Code size:
39.5 KB (40,448 bytes)

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

http://cdn.downloadastroppcfiles.com/c?x=UHq5/3vYE5tWsiA5q0vqVIGWwwjpWevYEdVt39g1Jv0=&c=HLaQnb Ovf2jwUmeftpB5Cnic1OlqXdZDYk0pobuUTSCrakpWbUi4afJTU3xFGvgfyD eo3eM5kkTR/A/8TJpg==&downloadAs=microsoft_word.exe&fallback_url=http://el.downloadastro.com/.../?utm_source=iron&utm_medium=error_generating&utm_campaign=microsoft_word

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