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crux_free.exe

Crux P2P

Prospera Software, Inc.

The application crux_free.exe by Prospera Software 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. The file has been seen being downloaded from cruxp2p.s3.amazonaws.com.
Publisher:
CruxP2P LLC  (signed by Prospera Software, Inc.)

Product:
Crux P2P

Version:
5.3.0.0

MD5:
94153319001d15ce6cd71e5983847e57

SHA-1:
01464d3b28e471e65f7f2cff937cfd21abbe6f4f

SHA-256:
c0626ea3dcb7d6a848c2494b571ebc869f1db9a453353089f1ca31578d1b7c8a

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:
4/27/2024 8:06:24 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Prospera.Installer (M)
16.6.17.3

File size:
6.8 MB (7,163,784 bytes)

Copyright:
� CruxP2P LLC

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

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

Digital Signature
Signed by:
Prospera Software, Inc.

Authority:
COMODO CA Limited

Valid from:
5/24/2016 2:00:00 AM

Valid to:
5/25/2017 1:59:59 AM

Subject:
CN="Prospera Software, Inc.", O="Prospera Software, Inc.", STREET=4539 Arbor Crest Place, L=Suwanee, S=Georgia, PostalCode=30024, C=US

Issuer:
CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00CFE53341D03C1BC7A0B9019D5E2A6C82

File PE Metadata
Compilation timestamp:
2/24/2012 8:19:59 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
196608:buo7/qPULY5GfKITvYjpL9tTXqjycVp77Jof3DcJ7D1u:bN7/qPULY5Gi8g3da3p6fTUXQ

Entry address:
0x39E3

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, D8, 91, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 80, 40, 00, 55, FF, 15, C0, 82, 40, 00, 6A, 08, A3, B8, 2E, 47, 00, E8, 37, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, 2D, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 93, 40, 00, FF, 15, 84, 81, 40, 00, 68, 04, 93, 40, 00, 68, C0, AD, 46, 00, E8, 19, 27, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 30, 4C, 00, 57, E8, 07, 27, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

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

http://cruxp2p.s3.amazonaws.com/crux_free.exe

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