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maintainer.exe

lucky leap

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by lucky leap has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. While running, it connects to the Internet address install.luckyleap.net on port 80 using the HTTP protocol.
Publisher:
lucky leap  (signed and verified)

Version:
1.0.5455.42169

MD5:
3147db2877784d08fe9b69eab3f2a923

SHA-1:
4bfe7662384b5fcc92730ce71fb1c64360045266

SHA-256:
af228f7d78b97bbb0ebb9768bdab908ed27622d7291a4787bf12dc3f7744bae4

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:
11/23/2024 6:26:29 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.16.10

File size:
120.7 KB (123,632 bytes)

Product version:
1.0.5455.42169

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\ad150db6-ccc7-4494-8739-299bacbe5555\maintainer.exe

Digital Signature
Signed by:
lucky leap

Authority:
VeriSign, Inc.

Valid from:
10/15/2014 4:00:00 AM

Valid to:
8/14/2015 3:59:59 AM

Subject:
CN=lucky leap, O=lucky leap, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
43617BC1835AD477751C6C1F73B21914

File PE Metadata
Compilation timestamp:
12/9/2014 11:25:45 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x8A72

Entry point:
E8, 95, 57, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A1, 68, B2, 41, 00, 33, C5, 89, 45, FC, 83, 7D, 08, FF, 57, 74, 09, FF, 75, 08, E8, 79, 45, 00, 00, 59, 83, A5, E0, FC, FF, FF, 00, 6A, 4C, 8D, 85, E4, FC, FF, FF, 6A, 00, 50, E8, 7A, F3, FF, FF, 8D, 85, E0, FC, FF, FF, 89, 85, D8, FC, FF, FF, 8D, 85, 30, FD, FF, FF, 83, C4, 0C, 89, 85, DC, FC, FF, FF, 89, 85, E0, FD, FF, FF, 89, 8D, DC, FD, FF, FF, 89, 95, D8, FD, FF, FF, 89, 9D, D4, FD, FF, FF, 89, B5, D0, FD, FF, FF, 89, BD, CC...
 
[+]

Entropy:
6.1803

Code size:
68.5 KB (70,144 bytes)

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to install.luckyleap.net  (70.186.131.184:80)

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