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pianofxstudio_downloader-i4pwci78q.exe

Somoto Limited

This is the Somoto BetterInstaller, an installer that bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application pianofxstudio_downloader-i4pwci78q.exe by Somoto Limited 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 Somoto BetterInstaller installer. The file has been seen being downloaded from www.downloadsource.es.
Publisher:
Somoto Limited  (signed and verified)

MD5:
161c8650bd2a3a9e80b6d2b4b21442ce

SHA-1:
01d76b415af8c0634c58e2d5a2192f1346dfc903

SHA-256:
2633c789504c008d05cb774ebf0e5c2ff0b3fb69a79706ae287abdbe8765bd6f

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 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:
1/14/2025 2:59:05 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Somoto.Bundler (M)
16.5.29.0

File size:
220.9 KB (226,200 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Somoto BetterInstaller

Common path:
C:\users\{user}\Music\canciones\pianofxstudio_downloader-i4pwci78q.exe

Digital Signature
Signed by:
Somoto Limited

Authority:
DigiCert Inc

Valid from:
11/10/2013 7:00:00 PM

Valid to:
11/16/2015 7:00:00 AM

Subject:
CN=Somoto Limited, O=Somoto Limited, L=Tel Aviv, S=Tel Aviv, C=IL

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

Serial number:
05805984E5838EE41CFD82C4057379F9

File PE Metadata
Compilation timestamp:
12/17/2010 4:14:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
6144:pA0m3D0ovu+1KoGbnv2ez6SiTj7AqGlfLww1MPO2u:pA0iD0ovu+D4v5vK0q0LwtP

Entry address:
0x39AC

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, 7C, 01, 00, 00, E8, 97, 46, 00, 00, 83, EC, 0C, 68, 01, 80, 00, 00, E8, 42, 43, 00, 00, 6A, 00, E8, AB, 46, 00, 00, 6A, 08, A3, 88, 4C, 42, 00, E8, B1, 28, 00, 00, 6A, 00, 68, 60, 01, 00, 00, A3, 38, 4D, 42, 00, 8D, 85, 90, FE, FF, FF, 50, 6A, 00, 68, A4, A2, 40, 00, E8, F0, 45, 00, 00, 83, EC, 0C, 68, A5, A2, 40, 00, 68, 68, 4D, 42, 00, E8, EF, 2A, 00, 00, 83, C4, 18, E8, FE, 42, 00, 00, 52, 52, 50, 68, 00, D0, 42, 00, E8, DA, 2A, 00, 00, 57, 6A, 00, E8, 39, 42, 00, 00, 83...
 
[+]

Entropy:
7.7470  (probably packed)

Code size:
28.5 KB (29,184 bytes)

The file pianofxstudio_downloader-i4pwci78q.exe has been seen being distributed by the following URL.

http://www.downloadsource.es/.../PianoFXSTUDIO_downloader-I4pWCI78Q.exe

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