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tectsva.exe

Beijing baidu Netcom science and technology co.ltd

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from shadu.baidu.com.
Publisher:
Beijing baidu Netcom science and technology co.ltd  (signed and verified)

Version:
1.0.85.992

MD5:
762b9ea739e3206fcac2285b5d0225a9

SHA-1:
13a938f8f3b2db827ea431858f6ee5129c51ddeb

SHA-256:
80ccdb260bde90aa51fc95c0ee3b7865edfed5452f3111f1ee93de31091adf6e

Scanner detections:
2 / 68

Status:
Clean  (2 probable false positive detections)

Explanation:
These detections are probably false positives (erroneous), the file is probably malware free.

Analysis date:
4/16/2024 9:59:15 PM UTC  (today)

Scan engine
Detection
Engine version

Clam AntiVirus
Win.Adware.Wajam
0.98/18355

Malwarebytes
PUP.Optional.BundleInstaller
v2014.06.12.03

File size:
1.8 MB (1,899,328 bytes)

Product version:
1.0.85.992

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Chinese (Simplified, PRC)

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

Digital Signature
Signed by:
Beijing baidu Netcom science and technology co.ltd

Authority:
VeriSign, Inc.

Valid from:
2/27/2012 8:00:00 AM

Valid to:
2/27/2015 7:59:59 AM

Subject:
CN=Beijing baidu Netcom science and technology co.ltd, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Beijing baidu Netcom science and technology co.ltd, L=Beijing, S=Beijing, C=CN

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:
56659719569BE07B775A1B2275E2D83A

File PE Metadata
Compilation timestamp:
2/25/2012 3:19:59 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:9K70GeLeZb1f4xBS0JLNtJDs4O+1faAKj:9K7aeL4xBHJ/itqydj

Entry address:
0x39E3

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, D8, 91, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 80, 40, 00, 55, FF, 15, C0, 82, 40, 00, 6A, 08, A3, B8, 2E, 47, 00, E8, 37, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, 2D, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 93, 40, 00, FF, 15, 84, 81, 40, 00, 68, 04, 93, 40, 00, 68, C0, AD, 46, 00, E8, 19, 27, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 30, 4C, 00, 57, E8, 07, 27, 00, 00...
 
[+]

Entropy:
7.9812

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

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

http://shadu.baidu.com/index/.../30667

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