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cn3.exe

Setup

Open Source

The executable cn3.exe has been detected as malware by 5 anti-virus scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. This is a malicious Bitcoin miner. Bitcoin-mining malware is designed to force computers to generate Bitcoins for cybercriminals' use and consumes computing power. The file has been seen being downloaded from b2-31d2.kxcdn.com and multiple other hosts.
Publisher:
Open Source

Product:
Setup

Version:
1.2

MD5:
d19d1ad96f7d3e01932a92eafc86745a

SHA-1:
6049252c6c934537b7777437b4ad8371e56f5fc0

SHA-256:
38624df9ae3ab4e1b9ca5fe05978b6c85a8256760608c0a86a75da1275a53214

Scanner detections:
5 / 68

Status:
Malware

Explanation:
The program will mine for BitCoins using the computer's GPU in the background and may be installed and run without the user's knowledge.

Analysis date:
4/30/2024 3:09:46 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Detection.Undefined
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Application.BitcoinMiner.16
11.5.0.6191

ESET NOD32
Win32/BitCoinMiner.BY potentially unsafe application
8.0.319.0

Kaspersky
not-a-virus:HEUR:RiskTool.Win32.BitCoinMiner
15.0.0.562

Norman
Gen:Variant.Application.BitcoinMiner.16
29.03.2016 06:29:16

File size:
4.5 MB (4,768,471 bytes)

Product version:
1.2

Copyright:
2015 - Open Source

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\cn3.exe

File PE Metadata
Compilation timestamp:
8/5/2015 6:17:29 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:RJIcUKc06FBNEUn3WcESplCqlLHHTdRBTnM4p4fQ+5BIZ8LLvTOGMA:0cdOEwWjAC0HJPTMw4fp5ywLr

Entry address:
0x30B6

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 90, 91, 40, 00, 89, 5C, 24, 20, C6, 44, 24, 14, 20, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, 1C, 71, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 09, A3, 98, 67, 44, 00, E8, ED, 2D, 00, 00, A3, E4, 66, 44, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, 98, 94, 42, 00, FF, 15, 64, 71, 40, 00, 68, 80, 91, 40, 00, 68, E0, 26, 44, 00, E8, 97, 2A, 00, 00, FF, 15, 20, 71, 40, 00, BD, 00, F0, 46, 00, 50, 55, E8, 85, 2A...
 
[+]

Entropy:
7.9988

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file cn3.exe has been seen being distributed by the following 2 URLs.

http://b2-31d2.kxcdn.com/B2.exe

http://cn3-14b7.kxcdn.com/CN3.exe

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