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b1freearchiver.exe

Installer B1 Free Archiver

Catalina Group Limited

The application b1freearchiver.exe by Catalina Group Limited 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. This file is typically installed with the program B1 Free Archiver by Catalina Group Ltd. The file has been seen being downloaded from b1.org and multiple other hosts.
Publisher:
http://b1.org/  (signed by Catalina Group Limited)

Product:
Installer B1 Free Archiver

Version:
2, 6, 39, 0

MD5:
55fc70b3738c02b3ce9ed639d1cd7380

SHA-1:
64601b8be1fa190bbf57bd926c858636fd79fbc3

SHA-256:
144851253a8266b5efa23db42b42aa5e38baebdd7d5532f732950412c06797d4

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
12/25/2024 1:14:30 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Catalina.httpb1or.Installer (M)
16.3.30.22

File size:
656.1 KB (671,800 bytes)

Product version:
2, 6, 39, 0

Copyright:
Copyright © 2015, Catalina Group Ltd. All rights reserved.

Original file name:
Installer

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\b1freearchiver.exe

Digital Signature
Signed by:
Catalina Group Limited

Authority:
Starfield Technologies, Inc.

Valid from:
1/12/2015 9:36:38 AM

Valid to:
9/26/2016 10:56:54 PM

Subject:
CN=Catalina Group Limited, O=Catalina Group Limited, L=Kwun Tong, S=Hong Kong, C=HK

Issuer:
CN=Starfield Secure Certificate Authority - G2, OU=http://certs.starfieldtech.com/repository/, O="Starfield Technologies, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
1855136D47C1A483

File PE Metadata
Compilation timestamp:
9/16/2015 10:50:30 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:ynnHPqNHrtT6Clleiiz1chwVsiUqZTYmXUJZQtdVYtq36Z7GsHnHjjv1t9JJT:ynnHPGdxJYEritZTxUDtG2nXvP9Jt

Entry address:
0x317CE

Entry point:
E8, AA, D5, 00, 00, E9, 79, FE, FF, FF, CC, CC, CC, CC, CC, CC, CC, CC, 8B, 4C, 24, 04, F7, C1, 03, 00, 00, 00, 74, 24, 8A, 01, 83, C1, 01, 84, C0, 74, 4E, F7, C1, 03, 00, 00, 00, 75, EF, 05, 00, 00, 00, 00, 8D, A4, 24, 00, 00, 00, 00, 8D, A4, 24, 00, 00, 00, 00, 8B, 01, BA, FF, FE, FE, 7E, 03, D0, 83, F0, FF, 33, C2, 83, C1, 04, A9, 00, 01, 01, 81, 74, E8, 8B, 41, FC, 84, C0, 74, 32, 84, E4, 74, 24, A9, 00, 00, FF, 00, 74, 13, A9, 00, 00, 00, FF, 74, 02, EB, CD, 8D, 41, FF, 8B, 4C, 24, 04, 2B, C1, C3, 8D...
 
[+]

Code size:
294 KB (301,056 bytes)

The file b1freearchiver.exe has been discovered within the following program.

B1 Free Archiver  by Catalina Group Ltd
About 5% of users remove it
 
Powered by Should I Remove It?

The file b1freearchiver.exe has been seen being distributed by the following 3 URLs.

http://b1.org/smart-download/0/.../B1FreeArchiver_1.7.120.exe

http://www.b1.org/smart-download/0/.../B1FreeArchiver_1.7.120.exe

http://b1.org/smart-download/0/.../B1FreeArchiver_1.7.120.exe

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