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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. The file has been seen being downloaded from up.bav.baidu.com and multiple other hosts.
Publisher:
http://b1.org/  (signed by Catalina Group Limited)

Product:
Installer B1 Free Archiver

Version:
2, 6, 39, 0

MD5:
5c913da465bff8cb5bd4a709700cacc2

SHA-1:
511f95b494f7f7e447c4fc0d94cb877bfc6d1d7a

SHA-256:
917c96f4e86cf39393a621576702d852e7c626c4047b9d041a3edd299e133aef

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:
12/26/2024 1:01:01 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Catalina.httpb1or.Installer (M)
16.4.4.13

File size:
656.1 KB (671,808 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 6:36:38 PM

Valid to:
9/27/2016 8:56:54 AM

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 8:50:30 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:qnnHPqNHrtT6Clleiiz1chwVsiUqZTYmXUJZQtdVYtq36Z7GsHnHjjv1t9JJ:qnnHPGdxJYEritZTxUDtG2nXvP9J

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...
 
[+]

Entropy:
6.5279

Code size:
294 KB (301,056 bytes)

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

http://up.bav.baidu.com/?rh=4431A18F3712103E2E8D0D5E5E28EFAE&baidusign=27925021&baidurand=10182

http://www.soft-go.com/dl/.../108137

http://software.thaiware.com/download_url.php?id=12100

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