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installer.exe

ProxyInstaller

Sea Bug

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application installer.exe by Sea Bug has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from d32k27yvyi4kmv.cloudfront.net.
Publisher:
Sea Bug  (signed and verified)

Product:
ProxyInstaller

Version:
1.0.0.0

MD5:
895d4329025234659e2e19a0670e7ec8

SHA-1:
6ab381d5799cf7f2a27601aed848178d0a4f3d9c

SHA-256:
b8c08c262b6a3dfa817a3c795d0f1cd024fc9c76e41468e2555fde96702f1664

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
5/8/2024 6:05:03 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Threat.Yontoo.Installer
15.4.16.13

File size:
201.6 KB (206,480 bytes)

Product version:
1.0.0.0

Copyright:
Copyright © 2014

Original file name:
ProxyInstaller.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\installer.exe

Digital Signature
Signed by:
Sea Bug

Authority:
GoDaddy.com, Inc.

Valid from:
7/25/2014 3:59:04 PM

Valid to:
7/25/2015 3:59:04 PM

Subject:
CN=Sea Bug, O=Sea Bug, L=Orange, S=California, C=US

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:
081CF04D6E5726

File PE Metadata
Compilation timestamp:
8/30/2014 1:03:29 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:pZKD9frBHW/c2TTgTTg6QTgnTOTTs+TnT7TTngnTTzgTBqhnnTngBP7TEhnngpT4:zifriodwu

Entry address:
0x30F8A

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
6.6015

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
188 KB (192,512 bytes)

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

http://d32k27yvyi4kmv.cloudfront.net/.../Installer.exe

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