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icreinstall_yahoo-messenger.exe

program

Advertiso GmbH

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_yahoo-messenger.exe, “program Setup ” by Advertiso GmbH 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. The file has been seen being downloaded from tmpfile1352.s3.amazonaws.com. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
Advertiso GmbH  (signed and verified)

Product:
program

Description:
program Setup

Version:
2.0.3.2

MD5:
4d160b26bda3bee8089a3401d93e1cb7

SHA-1:
2dc0b420c551277891991d63c577c415f6a72a17

SHA-256:
6313bd94daac76cbc347cd51726406e61c305e463b6a00685ce0e0ae505ca66c

Scanner detections:
1 / 68

Status:
Adware

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

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:
8/2/2025 11:39:19 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.Advertis.Installer (M)
16.4.21.6

File size:
961.4 KB (984,504 bytes)

Product version:
3.6.5

Copyright:
installer web

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_yahoo-messenger.exe

Digital Signature
Signed by:
Advertiso GmbH

Authority:
GlobalSign nv-sa

Valid from:
12/30/2015 5:45:26 AM

Valid to:
12/30/2016 5:45:26 AM

Subject:
CN=Advertiso GmbH, O=Advertiso GmbH, L=Hamburg, S=Hamburg, C=DE

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

Serial number:
112153241712D48BF879DC1FEB639FA4305C

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:omp9L9rRD8jHd2H1u/8VjDBzlkv3nFfcFh+C:oc9BRIbUg/8VjNGdcSC

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, BF, A9, FF, FF, E8, 5E, 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:
7.9341

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

Code size:
37 KB (37,888 bytes)

The file icreinstall_yahoo-messenger.exe has been seen being distributed by the following URL.

https://tmpfile1352.s3.amazonaws.com/download77/ic_trackings/28693/.../yahoo-messenger.exe

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)

TCP (HTTP):
Connects to cdneu.webfilescdn.com  (65.254.40.36:80)

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