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update2_en.exe

Grand Theft Auto 4

RICH MEDIA SYSTEMS INC.

The application update2_en.exe by RICH MEDIA SYSTEMS INC has been detected as a potentially unwanted program by 17 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 grandtheftauto.1800download.com and multiple other hosts.
Publisher:
RICH MEDIA SYSTEMS INC.  (signed and verified)

Product:
Grand Theft Auto 4

Version:
1.0.0.0

MD5:
d3d547b2a345db6bc5f89f4b626a7543

SHA-1:
0066f2944781f26433dab739930c257bad1fc291

SHA-256:
4f2cf0d689573e06394ea85946dde970934e84e381cf4832641d02766aed2492

Scanner detections:
17 / 68

Status:
Potentially unwanted

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:
10/11/2025 3:41:40 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
OpenCandy
2016.0.3017

Baidu Antivirus
Adware.Win32.OpenCandy
4.0.3.15815

Clam AntiVirus
Win.Trojan.Agent-855157
0.98/21511

Dr.Web
Adware.Downware.10304
9.0.1.0227

ESET NOD32
Win32/OpenCandy.C potentially unsafe (variant)
9.11634

Fortinet FortiGate
Riskware/OpenCandy
8/15/2015

G Data
Win32.Adware.OpenCandy
15.8.25

K7 AntiVirus
Trojan
13.203.15929

Malwarebytes
PUP.Optional.OpenCandy
v2015.08.15.11

McAfee
Artemis!D3D547B2A345
5600.6673

NANO AntiVirus
Riskware.Win32.Downloader.dqybkl
0.30.24.1357

Panda Antivirus
PUP/OpenCandy
15.08.15.11

Reason Heuristics
PUP.RICHMEDIASYSTEMS.Installer (M)
15.8.15.11

Sophos
OpenCandy
4.98

Trend Micro House Call
Suspicious_GEN.F47V0414
7.2.227

VIPRE Antivirus
Sevas-S Installer
40262

File size:
415.7 KB (425,680 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\update2_en.exe

Digital Signature
Signed by:
RICH MEDIA SYSTEMS INC.

Authority:
Symantec Corporation

Valid from:
2/17/2015 5:30:00 AM

Valid to:
2/18/2016 5:29:59 AM

Subject:
CN=RICH MEDIA SYSTEMS INC., O=RICH MEDIA SYSTEMS INC., L=HENDERSON, S=Nevada, C=US

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
3F87144C25AF8BCF29F29C5A1FEEF4BA

File PE Metadata
Compilation timestamp:
5/20/2013 5:23:00 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:8iuqBi+ajUmfRqp9xInaKqggpjxXitxAHB5XPLvf1+NOsTP+8n:gqBiLImf4X1Ug7b9jINOsTGa

Entry address:
0x331C

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, 98, 92, 42, 00, E8, A8, 2E, 00, 00, A3, E4, 91, 42, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, 90, 06, 42, 00, FF, 15, 7C, 71, 40, 00, 68, 7C, 93, 40, 00, 68, E0, 81, 42, 00, E8, 13, 2B, 00, 00, FF, 15, 34, 71, 40, 00, BB, 00, 40, 43, 00, 50, 53, E8, 01, 2B, 00, 00...
 
[+]

Entropy:
7.8454

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

The file update2_en.exe has been seen being distributed by the following 2 URLs.

http://grandtheftauto.1800download.com/get_azure_file/wUiS4WnYccXEwj /TeqjC1c0kw48PjylER37Zt3TsOh152b0sCgrn8kFbk3iYqn7PXu8xEZTcWmOEfv4W6c8gLNnztTaXlLFoGi7Hk20snm1mbGVvNKbm2JBs5QiiBZIV3y1TGchhshq9C7wSGSbSbxc2syiPTMNeu9rc00dOOz9V351aouOckpm2aOLZ1g7Lc2nw Z2BG woAyQwKs5RoC2M8itZWNe3smvFqounh0f/9ykzhikP Mw1XC0CIxX78OxUS6r4s/.../44JDnzR1mZybWszMe3NHYfQ==

http://1800dcdn.blob.core.windows.net/dir195/wi/18/33/1/.../update2_EN.exe

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