icreinstall_yahoo-messenger.exe

Program Setup

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 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 tmpfile6336.s3.amazonaws.com. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
SecuredDownload  (signed by Advertiso GmbH)

Product:
Program Setup

Version:
1.0.5.a0.1_57340

MD5:
52633f6399d2489fc2f7acd552e01b64

SHA-1:
f39981de55e6c04e8e169de46be3c4abebabefd5

SHA-256:
ca821c72bae1e00bbca5ed997813d165f5d982914be919b9eb3f14454e6708f3

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:
12/25/2024 5:22:09 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.Advertis.Installer (M)
16.5.30.6

File size:
925.5 KB (947,704 bytes)

Product version:
1.0.5.a0.1_57340

Copyright:
SecuredDownload

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:

Authority:
GlobalSign nv-sa

Valid from:
1/29/2016 4:18:13 AM

Valid to:
2/28/2017 4:18:13 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:
1121DC03319C2856FEEAC8C45933D49AAE7A

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

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:/ckDmsY+rzipnUBacJ+NYGFWEqLiStb0exT3ukA/1HDd:/j6+rzkDxaMGLiStb0c3uk

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...
 
[+]

Entropy:
7.9378

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

Code size:
39.5 KB (40,448 bytes)

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

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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