MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

BlackNET

Vendor detections: 17

Intelligence 17 IOCs 1 YARA 23 File information Comments

SHA256 hash:	47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3
SHA3-384 hash:	02e8aefda3793e8154a0af79a84860f12d14cb6c211449be831a4c25da28dfe7e814faeb173d195870b8ebfa6b562ff8
SHA1 hash:	febd2f81bfb9debb631160673f6bf5718cae0f37
MD5 hash:	383415f1b59a5b44074655ecf23d806b
humanhash:	october-massachusetts-asparagus-enemy
File name:	383415F1B59A5B44074655ECF23D806B.exe
Download:	download sample
Signature	BlackNET Create hunting rule
File size:	101'888 bytes
First seen:	2025-01-28 22:40:33 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'076 x AgentTesla, 20'041 x Formbook, 12'353 x SnakeKeylogger)
ssdeep	1536:09FUuRWzwFfsSMBdvueI5Xq8ZGAHEKJusRebSTr2qPQ2TYB+ezwRYx3beV5EKQLa:/MlDZGIuLS3TYB+eztx3be/EKyyFfai
TLSH	T13CA3C40377ED5D69E0BDDAB4AB324280C7B6FC264922C76C4CC560AD56B6742BD01BE3
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
File icon (PE):
dhash icon	414555c0d4d44503 (18 x njrat, 16 x BlackNET, 8 x Lucifer)
Reporter	abuse_ch
Tags:	BlackNet exe

abuse_ch

BlackNET C2:
http://148.72.170.231:4444/BNET/receive.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
http://148.72.170.231:4444/BNET/receive.php	https://threatfox.abuse.ch/ioc/1395835/

Intelligence

File Origin

# of uploads :

# of downloads :

577

Origin country :

Vendor Threat Intelligence

Malware family:

blacknet

ID:

File name:

black.exe

Verdict:

Malicious activity

Analysis date:

2025-01-29 05:10:11 UTC

Tags:

blacknet rat

Link:

https://app.any.run/tasks/c6829096-9cf2-454a-b4ec-18d387f1a0a6

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

Win.Trojan.Razy-9778111-0

Win.Malware.Ursu-9794593-0

Win.Packed.BlackNet-9866245-1

Win.Keylogger.Marsilia-10040488-0

Gathering data

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

Connection attempt

Sending an HTTP GET request

Running batch commands

Creating a process with a hidden window

Creating a file in the %temp% subdirectories

Enabling the 'hidden' option for files in the %temp% directory

Enabling the 'hidden' option for analyzed file

Creating a process from a recently created file

Searching for the window

Creating a file

Launching a process

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Unauthorized injection to a recently created process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug anti-vm blacknet blackworm cmd evasive explorer lolbin net obfuscated schtasks vbnet winnti worm

Link:

https://www.filescan.io/uploads/67995cfeb803e4534572e07c/reports/1cae1d57-a513-4272-bb1a-57002299ba9e/overview

Verdict:

Malicious

Labled as:

Variadic.A.348.Generic

Link:

https://www.hybrid-analysis.com/sample/47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3

Malware family:

BlackNet RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/34f3b933-652d-4b64-ad52-790f5754e8cc

Result

Threat name:

BlackNET

Detection:

malicious

Classification:

troj.spyw.evad.mine

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1601746

Signature

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to log keystrokes (.Net Source)

Creates autostart registry keys with suspicious names

Found malware configuration

Found strings related to Crypto-Mining

Joe Sandbox ML detected suspicious sample

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Self deletion via cmd or bat file

Sigma detected: New RUN Key Pointing to Suspicious Folder

Sigma detected: Potentially Suspicious Malware Callback Communication

Suricata IDS alerts for network traffic

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses known network protocols on non-standard ports

Uses ping.exe to check the status of other devices and networks

Uses ping.exe to sleep

Yara detected BlackNET

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3/

Threat name:

ByteCode-MSIL.Trojan.Variadic

Status:

Malicious

First seen:

2025-01-25 02:42:00 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

33 of 38 (86.84%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=i7za4opvdry3xqsoppzijfwilhht4tu5zaomiopro6kwvotngkrq._file

Verdict:

malicious

Label(s):

blacknetrat

Similar samples:

error

BlackNET

Result

Malware family:

blacknet

Score:

10/10

Tags:

family:blacknet botnet:hacked discovery persistence trojan

Link:

https://tria.ge/reports/250128-2l36aatkgs/

Behaviour

Runs ping.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

Adds Run key to start application

Checks computer location settings

Executes dropped EXE

BlackNET payload

Blacknet family

Contains code to disable Windows Defender

BlackNET

Malware Config

C2 Extraction:

http://148.72.170.231:4444/BNET

Verdict:

Malicious

Tags:

red_team_tool trojan rat xworm Win.Trojan.Razy-9778111-0

YARA:

HKTL_NET_GUID_BlackNET MALWARE_Win_BlackNET win_xworm_bytestring

Link:

https://app.threat.zone/submission/f0fdddd2-e727-4ab5-a7b5-e7ba24084a56

Unpacked files

SH256 hash:

47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3

MD5 hash:

383415f1b59a5b44074655ecf23d806b

SHA1 hash:

febd2f81bfb9debb631160673f6bf5718cae0f37

Detections:

BlackNetRAT

win_blacknet_rat_w0

Link:

https://www.unpac.me/results/343461ea-f148-46b7-a65a-6814481be3c8/

Malware family:

BlackWorm

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/47f20e39f51c/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	CN_disclosed_20180208_c Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146

Rule name:	CN_disclosed_20180208_c_RID2E71 Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146

Rule name:	d238aea078ca1bb99a80ec2bf5d07acb818d72e7823ea8e767eefde95a038401 Create hunting rule
Author:	H3lium
Description:	MALWARE! - file d238aea078ca1bb99a80ec2bf5d07acb818d72e7823ea8e767eefde95a038401.exe
Reference:	https://github.com/Neo23x0/yarGen

Rule name:	DarkVision_upload Create hunting rule
Author:	01Xyris
Description:	DarkVision_upload

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

Rule name:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

Rule name:	HKTL_NET_GUID_BlackNET Create hunting rule
Author:	Arnim Rupp (https://github.com/ruppde)
Description:	Detects VB.NET red/black-team tools via typelibguid
Reference:	https://github.com/BlackHacker511/BlackNET

Rule name:	INDICATOR_SUSPICIOUS_DisableWinDefender Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing artifacts associated with disabling Widnows Defender

Rule name:	INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender Create hunting rule
Author:	ditekSHen
Description:	Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

Rule name:	MALWARE_Win_BlackNET Create hunting rule
Author:	ditekSHen
Description:	Detects BlackNET RAT

Rule name:	MAL_Winnti_Sample_May18_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:	https://401trg.pw/burning-umbrella/

Rule name:	MAL_Winnti_Sample_May18_1_RID3003 Create hunting rule
Author:	Florian Roth
Description:	Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:	https://401trg.pw/burning-umbrella/

Rule name:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_Modified_SystemExeFileName_in_File Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detecst a variant of a system file name often used by attackers to cloak their activity
Reference:	https://www.symantec.com/blogs/threat-intelligence/seedworm-espionage-group

Rule name:	SUSP_Modified_SystemExeFileName_in_File_RID35F8 Create hunting rule
Author:	Florian Roth
Description:	Detecst a variant of a system file name often used by attackers to cloak their activity
Reference:	https://www.symantec.com/blogs/threat-intelligence/seedworm-espionage-group

Rule name:	win_blacknet_rat_w0 Create hunting rule
Author:	K7 Security Labs
Description:	BlackNet Payload

Rule name:	win_xworm_bytestring Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects bytestring present in unobfuscated xworm

File information

The table below shows additional information about this malware sample such as delivery method and external references.

No further information available

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

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