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 setup and installation application 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:
1fd1bd9a0a2801f0ca0eeb3b5e729dfe

SHA-1:
ba7ecd4681011a987ecd1a1d47230e55be5ea9d4

SHA-256:
609e5a1626260c21509d6bea7cc9fffffbad07f5ff7dde10fd21f635b4ea9566

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 1:06:09 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Catalina.httpb1or.Installer (M)
16.3.29.14

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
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:ynnHPqNHrtT6Clleiiz1chwVsiUqZTYmXUJZQtdVYtq36Z7GsHnHjjv1t9JJU:ynnHPGdxJYEritZTxUDtG2nXvP9Ja

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
 
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The file b1freearchiver.exe has been seen being distributed by the following 17 URLs.

http://b1.org/smart-download/0/.../B1FreeArchiver_1.2.54.exe

http://b1.org/download.jsp?buildId=52&os=Windows

http://download1727.mediafire.com/w3z23xcdtqbg/.../B1FreeArchiver.exe

http://download1727.mediafire.com/i6t6j5766jjg/.../B1FreeArchiver.exe

http://www.majorgeeks.com/index.php?ct=files&action=download&

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

http://b1.org/smart-download/0/.../B1FreeArchiver_1.4.69.exe

temp:B1FreeArchiver.exe

http://dc591.4shared.com/download/.../B1FreeArchiver.exe

http://www.tamindir.com/indir/MjAxNi0wNS0xMiAyMjozOTowMQ==/b1-free-archiver/windows/.../

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