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b4.exe

Setup

Open Source

The application b4.exe has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The setup program bundles adware offers using the Amonetize, a Pay-Per-Install (PPI) monetization and distribution download manager. The software offerings provided are based on the PC's geo-location at the time of install.
Publisher:
Open Source

Product:
Setup

Version:
1.2

MD5:
6160eefdfc1cd14e1234e88887791c6a

SHA-1:
62a775e8d003270d1be0707f41b318b915fd72e7

SHA-256:
02b7d7f8f79a5dbe01bcf24a8ccfd337bada61ae835b7f10ef774b449e63512d

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
11/24/2024 6:42:07 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Amonetize (M)
16.7.17.23

File size:
153.5 KB (157,233 bytes)

Product version:
1.2

Copyright:
2015 - Open Source

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\b4.exe

File PE Metadata
Compilation timestamp:
8/5/2015 6:47:32 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:RIIDDB91cHdXJNNEkJzpwdw80vsCc585EFN8zgGsOhydjHJY:RIM94VEeIw8KFcm5UyzVzhydje

Entry address:
0x3217

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 89, 5C, 24, 20, C6, 44, 24, 14, 20, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 09, A3, B8, 67, 44, 00, E8, 05, 2E, 00, 00, A3, 04, 67, 44, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, B8, 94, 42, 00, FF, 15, 64, 71, 40, 00, 68, E4, 91, 40, 00, 68, 00, 27, 44, 00, E8, AF, 2A, 00, 00, FF, 15, B0, 70, 40, 00, BD, 00, F0, 46, 00, 50, 55, E8, 9D, 2A...
 
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Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file b4.exe has been seen being distributed by the following URL.

http://b4-31d2.kxcdn.com/B4.exe

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