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spark_minidownloader.exe

Baidu Spark Browser

Innovative Systems LLC

The application spark_minidownloader.exe by Innovative Systems has been detected as adware by 12 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. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from spark-browser.joydownload.com and multiple other hosts.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Baidu Spark Browser

Version:
1.0.0.0

MD5:
413a5679f012a832469acffddc6ad641

SHA-1:
358268b9821c97aecd03429229d4c13989445c4a

SHA-256:
14b77a9bd8426d9166a9291a2058484c5aea69e05739eb7b608fb3d6d1986de9

Scanner detections:
12 / 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:
4/16/2024 7:50:51 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.OpenCandy
2014.11.22

Avira AntiVirus
APPL/Downloader.Gen
7.11.188.24

AVG
OpenCandy
2016.0.2967

Baidu Antivirus
Adware.Win32.OpenCandy
4.0.3.15103

Clam AntiVirus
Win.Trojan.Agent-803351
0.98/21511

Dr.Web
Adware.OpenCandy.55
9.0.1.0276

ESET NOD32
Win32/JoyDownloader
9.10762

Malwarebytes
PUP.Optional.OpenCandy
v2015.10.03.06

McAfee
Artemis!413A5679F012
5600.6623

Reason Heuristics
PUP.InnovativeSystems.Installer (M)
15.10.3.18

Trend Micro House Call
Suspicious_GEN.F47V1106
7.2.276

File size:
496.4 KB (508,288 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

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

Digital Signature
Signed by:
Innovative Systems LLC

Authority:
Thawte, Inc.

Valid from:
9/19/2014 3:00:00 AM

Valid to:
9/20/2015 2:59:59 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 2:52:48 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:kQNDxaVp3lhskol4mbzb9R/oVuXC/siKc69Pdoeeb/zzDEa4wP:Vop3lflmbzxRuuXC/lD6987n9zP

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:
7.8811

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

The file spark_minidownloader.exe has been seen being distributed by the following 2 URLs.

http://spark-browser.joydownload.com/get_azure_file/wUiS4WnYccXBwj qXP7oQkEsnV0kNz6kGx7ga5/Zsekkuzyi93p5iNEMKU31K/utfSjTnQ0GazfTXLf7R Rjlvt kY7IFQfS9SzyHgCu7Gm0yP/XpMvak2FJppAiiBZIVXatGGos14N1r2K/GD LS/9WycTrJXRHOftpMkpNbOi0Azhtc43EJBEwyOX2GWUveY/.../8uk2UrzN6B0nG sAcVPsYSpSDrjtJuC3XV M kEBpY2enUguvD RE5zhVW61ddWESjzDU75pZD2kkdlZzCRqmFN19jXMXapRUXfifp0JA==

http://jdcdnnet.blob.core.windows.net/fas/wi/1/24/1/.../spark_minidownloader.exe

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