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kb_piano_2.4.4_downloader.exe

Cheng Du VTools Information Technology

The application kb_piano_2.4.4_downloader.exe by Cheng Du VTools Information Technology 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 program which is used to install the application. The file has been seen being downloaded from www.freenew.net.
Publisher:
Cheng Du VTools Information Technology  (signed and verified)

MD5:
279810de49376c34cbbeee3f7e60a924

SHA-1:
636f4b627fcf37c10ffe26fe3faec2c80cf2d844

SHA-256:
0dee2c8acab8b88517b681af29a99b837bd45f11b342c36e695c69eb0996c8e5

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:
12/24/2024 5:29:21 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.8.2.0

File size:
930.8 KB (953,144 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\downloads\kb_piano_2.4.4_downloader.exe

Digital Signature
Signed by:
Cheng Du VTools Information Technology

Authority:
VeriSign, Inc.

Valid from:
1/1/2014 2:00:00 AM

Valid to:
3/2/2016 1:59:59 AM

Subject:
CN=Cheng Du VTools Information Technology, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Cheng Du VTools Information Technology, L=ChengDu, S=SiChuan, C=CN

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
0A8A25417701491E37564B59A150624E

File PE Metadata
Compilation timestamp:
10/30/2013 4:48:33 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:9QDRdpNcRj6SvLTQzVBBY5P75kUMBlf3:CDR3ceSvwzVO7Lslf

Entry address:
0x1FAFE0

Entry point:
60, BE, 00, B0, 55, 00, 8D, BE, 00, 60, EA, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Entropy:
7.6078

Packer / compiler:
UPX 2.90LZMA

Code size:
644 KB (659,456 bytes)

The file kb_piano_2.4.4_downloader.exe has been seen being distributed by the following URL.

http://www.freenew.net/.../get.htm?id=39028

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