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b3.exe

Setup

Open Source

The application b3.exe has been detected as a potentially unwanted program by 7 anti-malware 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 41.223.201.246 and multiple other hosts.
Publisher:
Open Source

Product:
Setup

Version:
1.2

MD5:
9ec2df37712410ac943771acdd4672cd

SHA-1:
f5ab9ec54cbbfae762967900b62b6441019c04c9

SHA-256:
9e7e229e6094112be9ddd94b06664cb35117cc225aa2f34048c76d199a08bba0

Scanner detections:
7 / 68

Status:
Potentially unwanted

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:
12/26/2024 12:34:00 PM 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

F-Secure
Variant.Application.BitcoinMiner
5.15.21

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

McAfee
Program.PUP-RHAI
18.0.204.0

Norman
Gen:Variant.Application.BitcoinMiner.16
02.04.2016 17:35:19

File size:
4.6 MB (4,771,317 bytes)

Product version:
1.2

Copyright:
2015 - Open Source

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\b3.exe

File PE Metadata
Compilation timestamp:
8/5/2015 4:47:29 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:V1/cnBnjORaued0T4nvrFPJdRBTnM4p4fFZPkAfpJDbT/92p:V1aBjORaued0svZbPTMw4fPsIR2p

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...
 
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Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file b3.exe has been seen being distributed by the following 2 URLs.

http://41.223.201.246:801/.../B3.exe

http://b3-31d2.kxcdn.com/B3.exe

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