installer_ultrasurf.exe

Lekolo

FunnelOpti (Alpha Criteria Ltd.)

The application installer_ultrasurf.exe, “Lekolo Setup ” by FunnelOpti (Alpha Criteria) 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 setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from ultrasurf.es.
Publisher:
FunnelOpti (Alpha Criteria Ltd.)  (signed and verified)

Product:
Lekolo

Description:
Lekolo Setup

Version:
5.8.1.2

MD5:
b6fab173c98b3aa4e6156875b47e50ed

SHA-1:
f3d637b4a5b905d6f42a4a07907e12a02b69a8eb

SHA-256:
8633631625fc8848598d8355bb7ca3307ea122223b66c6314c0e5749bc4b7b7d

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
11/5/2024 9:40:16 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AC.Installer (M)
16.7.2.7

File size:
929.5 KB (951,768 bytes)

Product version:
3.1

Copyright:
Installer

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Authority:
GlobalSign nv-sa

Valid from:
12/16/2015 9:41:21 AM

Valid to:
8/26/2016 12:34:53 PM

Subject:
CN=FunnelOpti (Alpha Criteria Ltd.), O=FunnelOpti (Alpha Criteria Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121C57D0836DF0829F54F07ADA2D08AAFCB

File PE Metadata
Compilation timestamp:
6/19/1992 7:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:TvHYbXEBgn0aDKfBWD/eDv4m6jFdmbmlbj+5NHs72:TvTg04tDk4b3m4bq5Rb

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

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

Code size:
39.5 KB (40,448 bytes)

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

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