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installer_freedocumentsviewer.exe

Tripro Ltd

The application installer_freedocumentsviewer.exe by Tripro has been detected as adware by 8 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. This version of the installer will bundle the Ask.com Toolbar, a potentially unwanted web browser extension. The file has been seen being downloaded from www.doctaskz.com.
Publisher:
Tripro Ltd  (signed and verified)

MD5:
90fb1a59d4d29a28aed2219199010162

SHA-1:
718df6e805c8a9a4f9d4cec5cca326c26514ec96

SHA-256:
e7836067c12002bcd80bf3ce746d0844f9038c8583ac626c93cee1e52a3ba15c

Scanner detections:
8 / 68

Status:
Adware

Explanation:
Bundles that Ask.com toolbar as a third-party offer, a web browser extension that may modify a user's search and home pages.

Analysis date:
4/23/2024 7:22:16 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Malware-gen
2014.9-150409

ESET NOD32
Win32/Bundled.Toolbar.Ask.G potentially unsafe (variant)
9.11438

McAfee
Artemis!90FB1A59D4D2
5600.6800

Reason Heuristics
PUP.Installer.Tripro
15.4.9.9

Sophos
Mal/FakeAV-IR
4.98

Trend Micro House Call
Suspicious_GEN.F47V0306
7.2.99

VIPRE Antivirus
Trojan.Win32.Generic
39148

Zillya! Antivirus
Trojan.FakeAV.Win32.309072
2.0.0.2130

File size:
8.2 MB (8,576,224 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\content.ie5\cq200thw\installer_freedocumentsviewer.exe

Digital Signature
Signed by:
Tripro Ltd

Authority:
VeriSign, Inc.

Valid from:
9/30/2013 3:00:00 AM

Valid to:
10/1/2015 2:59:59 AM

Subject:
CN=Tripro Ltd, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Tripro Ltd, L=Hong Kong, S=Hong Kong, C=HK

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:
1189C239E85299F4464322E094264D91

File PE Metadata
Compilation timestamp:
12/6/2009 12:50:46 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
196608:SaGVSkJsuzmik9tkRaXP2feV0C6vP9LKMmI6Pyjw5Yebt2oxN3yTcRWxi:6lJYZiaea6v1ONI6PHRbt2wxRZ

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://www.doctaskz.com/Installer_FreeDocumentsViewer.exe

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