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win-install_yahoo! messenger_1.0.exe

Freemium GmbH

The application win-install_yahoo! messenger_1.0.exe by Freemium GmbH has been detected as a potentially unwanted program 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 Covus installer. The file has been seen being downloaded from www.anddownload.com.
Publisher:
Freemium GmbH  (signed and verified)

MD5:
79d595341cb542246202cf18d075226e

SHA-1:
d09120fc29b4b7c2b9c70e4b1b58beac479dbb9a

SHA-256:
642a5a90407efc7ccea22df8907f2b32687cc3e0c43e54e1ba106999604bac0d

Scanner detections:
1 / 68

Status:
Potentially unwanted

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/26/2024 12:56:49 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Covus (M)
16.8.6.2

File size:
509.9 KB (522,160 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Covus

Language:
English (United States)

Common path:
C:\users\{user}\downloads\win-install_yahoo! messenger_1.0.exe

Digital Signature
Signed by:
Freemium GmbH

Authority:
GoDaddy.com, Inc.

Valid from:
12/29/2014 10:41:38 AM

Valid to:
12/29/2015 10:41:38 AM

Subject:
CN=Freemium GmbH, O=Freemium GmbH, L=Berlin, C=DE

Issuer:
CN=Go Daddy Secure Certificate Authority - G2, OU=http://certs.godaddy.com/repository/, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
00FEAC9D237F1C5C86

File PE Metadata
Compilation timestamp:
12/9/2015 12:01:23 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:Cukia2cn5l18nAVy0z8Y+3JXOg1JZI2AoH1FLJHNPib/:ChztnqnAVy0YY+MW1FttKb/

Entry address:
0x13EBC

Entry point:
E8, 14, 7B, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 70, 45, 45, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, B8, 41, 45, 00, C9, C2, 08, 00, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 98, 72, 47, 00, 89, 0D, 94, 72, 47, 00, 89, 15, 90, 72, 47, 00, 89, 1D, 8C, 72, 47, 00, 89, 35, 88, 72, 47, 00, 89, 3D...
 
[+]

Entropy:
6.8914

Code size:
332 KB (339,968 bytes)

The file win-install_yahoo! messenger_1.0.exe has been seen being distributed by the following URL.

http://www.anddownload.com/yahoo-messenger/download/.../yahoo

Remove win-install_yahoo! messenger_1.0.exe - Powered by Reason Core Security
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