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yahoo_messenger.exe

Bully Unity LTD

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application yahoo_messenger.exe, “Installer Setup ” by Bully Unity 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. The file has been seen being downloaded from cdn2.downloadastro.com.
Publisher:
%PROD_NAME%  (signed by Bully Unity LTD)

Product:
%PROD_NAME%

Description:
Installer Setup

Version:
1.0.5.a0.1_34227

MD5:
7d3e7f62380cf1b7255f68378de1edeb

SHA-1:
7f1dc142d04142ee9c25b989d692d613b9537e5c

SHA-256:
880fe0af1083d3bd98c605f79a3f601dd9fee8cb13e5014d819e6f45c2c4b5b9

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:
11/27/2024 5:31:54 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.1.26.6

File size:
744.1 KB (761,968 bytes)

Product version:
1.0.5.a0.1_34227

Copyright:
%PROD_NAME%

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\yahoo_messenger.exe

Digital Signature
Signed by:
Bully Unity LTD

Authority:
DigiCert Inc

Valid from:
12/18/2014 5:30:00 AM

Valid to:
12/23/2015 5:30:00 PM

Subject:
CN=Bully Unity LTD, O=Bully Unity LTD, L=Jerusalem, C=IL

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0561C0FEA93F47093CCED2BA6A4400F1

File PE Metadata
Compilation timestamp:
6/20/1992 3:52:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

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:
7.8497

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

Code size:
37 KB (37,888 bytes)

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

http://cdn2.downloadastro.com/?ic_user_id=9267

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