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icreinstall_microsoft_excel.exe

Necutud

Webcellence Ltd.

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_microsoft_excel.exe, “Necutud Setup ” by Webcellence 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 the user's temporary directory. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
Cupenohan   (signed by Webcellence Ltd.)

Product:
Necutud

Description:
Necutud Setup

MD5:
66cc000134f2256d97bcdb960a60834f

SHA-1:
408a8df259b90a5d3b6443a6de44048854bb5970

SHA-256:
bad4dafc35cfb68c338bdd06af36712b47ae2de41134f2fd3c272ff129bd9782

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Utilizes the InstallCore download manager that may bundle various adware-type offers.

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:
5/2/2024 5:50:08 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.3.15.7

File size:
1012.9 KB (1,037,184 bytes)

Product version:
3.0.9

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_microsoft_excel.exe

Digital Signature
Signed by:
Webcellence Ltd.

Authority:
thawte, Inc.

Valid from:
1/18/2016 4:00:00 AM

Valid to:
1/18/2017 3:59:59 AM

Subject:
CN=Webcellence Ltd., OU=IT, O=Webcellence Ltd., L=ORA, S=Israel, C=IL

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
773E2C2E5EC62B0904E1441B54A723A6

File PE Metadata
Compilation timestamp:
6/20/1992 2:22:17 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:
7.9207

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

Code size:
40.5 KB (41,472 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

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