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b5t_setup.exe

帮5淘购物助手

载信软件（上海）有限公司

The application b5t_setup.exe by 载信软件（上海）有限公司 has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a self-extracting archive and installer and has been known to bundle potentially unwanted software. The file has been seen being downloaded from cdn.bang5mai.com and multiple other hosts.
Publisher:
载信软件（上海）有限公司  (signed and verified)

Product:
帮5淘购物助手

Version:
6, 0, 5, 3

MD5:
c71e90cc85d0b2938b929716575e2ade

SHA-1:
b167b70b79c08fe93d0952c60b6d3e0c24890497

SHA-256:
57c792414b43fceef32fe41bfaa5d75e0bf9253f2aebd9e5378e72c7d01d3e6e

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/23/2025 3:20:20 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Bang5mai (M)
16.10.18.23

File size:
3.9 MB (4,076,328 bytes)

Product version:
6, 0, 5, 3

Copyright:
Copyright (C) 2015 B5MSoft

Original file name:
B5TSetup.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\temp\b5t_setup.exe

Digital Signature
Signed by:
载信软件（上海）有限公司

Authority:
Thawte, Inc.

Valid from:
5/12/2014 8:00:00 AM

Valid to:
8/12/2015 7:59:59 AM

Subject:
CN=载信软件（上海）有限公司, OU=IT部, O=载信软件（上海）有限公司, L=上海, S=上海, C=CN

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
07CF6481D29DBD6746863A658408AE1C

File PE Metadata
Compilation timestamp:
12/31/2012 8:38:51 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
98304:16ghJe/daYoCtPHEjTZjiDSXvs2BCzntvv3FJQUy7jc:AqJWE4tPeZ+OX02CtHXQx

Entry address:
0x276F0

Entry point:
60, BE, 00, 90, 41, 00, 8D, BE, 00, 80, FE, FF, 57, 89, E5, 8D, 9C, 24, 80, C1, FF, FF, 31, C0, 50, 39, DC, 75, FB, 46, 46, 53, 68, 7F, 5E, 02, 00, 57, 83, C3, 04, 53, 68, E0, E6, 00, 00, 56, 83, C3, 04, 53, 50, C7, 03, 03, 00, 02, 00, 90, 90, 90, 90, 90, 55, 57, 56, 53, 83, EC, 7C, 8B, 94, 24, 90, 00, 00, 00, C7, 44, 24, 74, 00, 00, 00, 00, C6, 44, 24, 73, 00, 8B, AC, 24, 9C, 00, 00, 00, 8D, 42, 04, 89, 44, 24, 78, B8, 01, 00, 00, 00, 0F, B6, 4A, 02, 89, C3, D3, E3, 89, D9, 49, 89, 4C, 24, 6C, 0F, B6, 4A...
 
[+]

Entropy:
7.9995  (probably packed)

Code size:
64 KB (65,536 bytes)

The file b5t_setup.exe has been seen being distributed by the following 6 URLs.

http://cdn.bang5mai.com/upload/plugin/clients/.../b5t_mtxx.exe

http://42.63.1.164/files/41950000010C4592/cdn.b5m.cn/upload/plugin/clients/.../B5T_Setup.exe

http://183.91.33.11/cache/cdn.b5m.cn/upload/plugin/clients/.../B5T_Setup.exe

http://113.171.224.204/.../B5T_Setup.exe

http://cdn.b5m.cn/upload/plugin/clients/.../b5t_mtxx.exe

http://cdn.b5m.cn/upload/plugin/clients/.../B5T_Setup.exe

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