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ultrasurf.exe

UltraSurf

Innovative Systems LLC

The application ultrasurf.exe by Innovative Systems has been detected as adware by 7 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The installer uses the OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. The file has been seen being downloaded from ultrasurf.joydownload.com.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
UltraSurf

Version:
1.0.0.0

MD5:
9ab9b40392f5d62f70650684913aa973

SHA-1:
53003bc15d664fabf0c700e19c8a16ee9e7a97d4

SHA-256:
7bd48b5b69512b4102c179697e7f8e6af5ccdb37814031911a255ea96b3990e6

Scanner detections:
7 / 68

Status:
Adware

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
4/25/2024 6:01:52 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
APPL/Downloader.Gen
7.11.177.216

AVG
OpenCandy
2015.0.3322

Baidu Antivirus
Adware.Win32.OpenCandy
4.0.3.141014

ESET NOD32
Win32/JoyDownloader
8.10553

Malwarebytes
PUP.Optional.OpenCandy
v2014.10.14.08

McAfee
Artemis!045AAB13437B
5600.6978

Reason Heuristics
PUP.InnovativeSystems.J
14.10.14.8

File size:
496.4 KB (508,336 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
Innovative Systems LLC

Authority:
Thawte, Inc.

Valid from:
9/19/2014 7:00:00 AM

Valid to:
9/20/2015 6:59:59 AM

Subject:
CN=Innovative Systems LLC, O=Innovative Systems LLC, L=Dnepropetrovsk, S=Dnepropetrovska, C=UA

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
09A91C40EAE34E72CD975B0B218AE4BA

File PE Metadata
Compilation timestamp:
5/20/2013 6:52:48 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:CQdOKKhCm8YYWRnaKg3xu8LyBNxlgN04pWXpFQn6YFB5:DEQNYYWFaN3Splqpv6YF

Entry address:
0x331F

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, 30, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, BC, 70, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 08, A3, D8, 7A, 7A, 00, E8, A8, 2E, 00, 00, A3, 24, 7A, 7A, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, D0, EE, 79, 00, FF, 15, 7C, 71, 40, 00, 68, 7C, 93, 40, 00, 68, 20, 6A, 7A, 00, E8, 13, 2B, 00, 00, FF, 15, 34, 71, 40, 00, BB, 00, 20, 7B, 00, 50, 53, E8, 01, 2B, 00, 00...
 
[+]

Entropy:
7.8829

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

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

http://ultrasurf.joydownload.com/get_azure_file/wUiS4WnYccXEwj /TeqjC1c0kw48PjymGxryZd7WsOh152f0sCw22dBNJ0bterruNDC2w15KazrYCeLkErc90btk1s3eDQ6b7XC7Hk20sny1mbKI8I2H1iBZqtY6gF9QEi/zGDU2nsUj7Cn4WGKfSa5Xi83iPSVHMe0gJFsFMKXlV3p7asWNLBoihrOwS2VlJNS7lK9pHGL5uFPFjrowQNDsM4fsOWNXnMu5F/.../4O h1n7ZLgwy2jkUowYrJGlFjG8oZrTkCoqdeAcGdBoe20o8 ilFwhnjgS7lNdHGT6iX1nhqMPuxgRo

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