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microsoft_excel.exe

Web

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_excel.exe, “Web 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:
Web Program   (signed by Avitzur Efrati Initiatives and Management Ltd)

Product:
Web

Description:
Web Setup

MD5:
aadb184f403454dd51d4789fc5e92eac

SHA-1:
5ca6dff00596ac38e0213122438bd7bb1cff2cbc

SHA-256:
eac62d2446e20bb9672d04f003acd00b551e70d8c5d5181865d53e3e85fbc8a6

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
11/24/2024 3:59:09 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.1.14.9

File size:
745.7 KB (763,568 bytes)

Product version:
2.3

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_excel.exe

Digital Signature
Signed by:
Avitzur Efrati Initiatives and Management Ltd

Authority:
GlobalSign nv-sa

Valid from:
1/20/2015 9:01:04 AM

Valid to:
1/21/2016 9:01:04 AM

Subject:
E=asaf@efraty-yozmot.com, CN=Avitzur Efrati Initiatives and Management Ltd, O=Avitzur Efrati Initiatives and Management Ltd, L=Petah Tikva, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121332DE738824398C87831905968C784DA

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 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_excel.exe has been seen being distributed by the following URL.

http://cdn.downloadastroppcfiles.com/c?x=NldSRM9jKn49u1pd1xr0eTLnELNdEraz0GGc9hoUt9U=&c=Q7gbK7whVrM/TQf3iQgaiPT 7TZ/XGUZ//FumBN15ZO3n0yGLM8ungQdktoJFsu1qjW1/HucsX18FXPsvw6TXA==&downloadAs=microsoft_excel.exe&fallback_url=http://pl.downloadastro.com/.../?utm_source=ira&utm_medium=error_generating&utm_campaign=microsoft_excel

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