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masksurf_setup.exe

Thanksoft

The application masksurf_setup.exe by Thanksoft has been detected as a potentially unwanted program by 2 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from software-files-a.cnet.com and multiple other hosts.
Publisher:
Thanksoft  (signed and verified)

MD5:
b56715e4c6173cfadde5d4a219b16cbf

SHA-1:
1437931cbca9d4a00e6535e314f6b8982cf73d9d

SHA-256:
5df7c7cc2e7cd42ceab66d9bc2916cf60996b50a93e50cc240da995762d07e47

Scanner detections:
2 / 68

Status:
Potentially unwanted

Analysis date:
12/25/2024 6:07:14 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Tool.Tor.2
9.0.1.022

Reason Heuristics
PUP.Installer.Thanksoft.O
14.8.31.22

File size:
4.3 MB (4,514,464 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
Thanksoft

Authority:
VeriSign, Inc.

Valid from:
11/21/2012 3:00:00 AM

Valid to:
12/22/2013 2:59:59 AM

Subject:
CN=Thanksoft, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Thanksoft, L=Dnepropetrovsk, S=n/a, C=UA

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:
76708538C402831E2762FB5792D7BCDB

File PE Metadata
Compilation timestamp:
7/6/2011 5:31:20 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
98304:SxdEMuyrVUdvUKGjZF1vuHohEaokiKRlr4T507kd/BLyh:SuvcnoohEaoQRlr4T5VOh

Entry address:
0x354B

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, 84, 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, B0, 82, 40, 00, 6A, 08, A3, 98, 06, 47, 00, E8, 67, 27, 00, 00, 55, 68, B4, 02, 00, 00, A3, B0, 05, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 86, 40, 00, FF, 15, 80, 81, 40, 00, 68, 04, 86, 40, 00, 68, A0, 85, 46, 00, E8, 35, 26, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 10, 4C, 00, 57, E8, 23, 26, 00, 00...
 
[+]

Entropy:
7.9985

Packer / compiler:
Nullsoft install system v2.x

Code size:
25 KB (25,600 bytes)

The file masksurf_setup.exe has been seen being distributed by the following 3 URLs.

http://software-files-a.cnet.com/s/software/13/55/31/.../masksurf_setup.exe

http://www.thanksoft.com/.../masksurf_setup.exe

http://www.thanksoft.com/.../msurflite_setup.exe

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