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math321.exe

Simplex Japan K.K

This is a setup program which is used to install the application. The file has been seen being downloaded from gsf-cf.softonic.com.
Publisher:
Simplex Japan K.K  (signed and verified)

Description:
自己解凍実行ファイル

Version:
5.21

MD5:
063a782e348eddf58f7110c6eecbb877

SHA-1:
104531aaaf714b96b2755c5af96791a730537647

SHA-256:
ddd6cdb9adea36a038df7a2c1f86559dee8d7520ce251e5a3e544f93ef55e4a8

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
7/12/2025 5:57:14 PM UTC  (today)

File size:
2.8 MB (2,900,952 bytes)

Product version:
5.21

Original file name:
EPSFX.EXE

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\downloads\math321.exe

Digital Signature
Signed by:
Simplex Japan K.K

Authority:
VeriSign, Inc.

Valid from:
1/13/2010 9:00:00 AM

Valid to:
1/14/2011 8:59:59 AM

Subject:
CN=Simplex Japan K.K, OU=software development, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Simplex Japan K.K, L=tukuigun siroyamachou, S=kanagawa, C=JP

Issuer:
CN=VeriSign Class 3 Code Signing 2009-2 CA, OU=Terms of use at https://www.verisign.com/rpa (c)09, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
7BCD0B71A2F3C358175EBBC7CBCC2026

File PE Metadata
Compilation timestamp:
10/16/2009 7:32:28 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

Entry address:
0x141D4

Entry point:
E8, D3, 87, 00, 00, E9, 16, FE, FF, FF, 6A, 0C, 68, 28, 9C, 42, 00, E8, 7A, 27, 00, 00, 8B, 75, 08, 85, F6, 74, 75, 83, 3D, F8, B3, 44, 00, 03, 75, 43, 6A, 04, E8, 31, 1C, 00, 00, 59, 83, 65, FC, 00, 56, E8, 9F, 1C, 00, 00, 59, 89, 45, E4, 85, C0, 74, 09, 56, 50, E8, BB, 1C, 00, 00, 59, 59, C7, 45, FC, FE, FF, FF, FF, E8, 0B, 00, 00, 00, 83, 7D, E4, 00, 75, 37, FF, 75, 08, EB, 0A, 6A, 04, E8, 1F, 1B, 00, 00, 59, C3, 56, 6A, 00, FF, 35, 74, 9C, 44, 00, FF, 15, C8, 61, 42, 00, 85, C0, 75, 16, E8, 52, 00, 00...
 
[+]

Entropy:
7.9423  (probably packed)

Code size:
148 KB (151,552 bytes)

The file math321.exe has been seen being distributed by the following URL.

http://gsf-cf.softonic.com/104/531/.../file?SD_used=0&channel=WEB&fdh=no&id_file=119523&instance=softonic_jp&type=PROGRAM&Expires=1473618049&Signature=XLfZyeDuo7MlNZaxnAXyia4ZOaeFwtg2dvs4D82BhULEyW4YTlsX9Xgca57~4X2zkzPvdM2mrOfWexFHGBaZORfUUyzFR45oyPWtKvT5NuyswHaXs8B0Gy7w0gQx8k9TDFIpJmV8vCB~RFu6I-9aeGW8LAPoRGbOiB9YwSGgPJk_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=math321.exe

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