home

b4.exe

The executable b4.exe has been detected as malware by 1 anti-virus scanner. This is a setup program which is used to install the application. The file has been seen being downloaded from b4-31d2.kxcdn.com.
MD5:
0d8b59278a517f2698e3e13f64a5e5d2

SHA-1:
c653c3376532787c20cfcfc3b81752263ffd4e5d

SHA-256:
6afa648df6432a0baa432a633f834f5e7e7b827585d70a2a374c68d5a8615ce5

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
12/26/2024 12:37:53 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Threat.Win.Reputation.IMP
16.6.8.10

File size:
4.9 MB (5,093,029 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\b4.exe

File PE Metadata
Compilation timestamp:
6/19/1992 3:22:17 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
98304:jrc3J+LXSwLyOVzJ8HylJzotOfrzQBin3kU4M7BAuPMYy/cR9WvwC:038mwLyOHllYekU4M7BA2IcvWp

Entry address:
0x80E4

Entry point:
55, 8B, EC, 83, C4, E0, 33, C0, 89, 45, E0, 89, 45, E8, 89, 45, E4, 89, 45, EC, B8, 54, 80, 40, 00, E8, 12, BE, FF, FF, 33, C0, 55, 68, 20, 82, 40, 00, 64, FF, 30, 64, 89, 20, B8, A8, 91, 40, 00, B9, 0B, 00, 00, 00, BA, 0B, 00, 00, 00, E8, 5C, EF, FF, FF, B8, B4, 91, 40, 00, B9, 09, 00, 00, 00, BA, 09, 00, 00, 00, E8, 48, EF, FF, FF, B8, C0, 91, 40, 00, B9, 03, 00, 00, 00, BA, 03, 00, 00, 00, E8, 34, EF, FF, FF, B8, DC, 91, 40, 00, B9, 03, 00, 00, 00, BA, 03, 00, 00, 00, E8, 20, EF, FF, FF, A1, 10, 92, 40...
 
[+]

Entropy:
7.9976

Developed / compiled with:
Microsoft Visual C++

Code size:
29 KB (29,696 bytes)

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

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

Remove b4.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.