MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bd55b89d4b2189c1a2737653506e2f96244650c6411f47217cea8ab7d9b5fd27. 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

njrat

Vendor detections: 17

Intelligence 17 IOCs YARA 37 File information Comments

SHA256 hash:	bd55b89d4b2189c1a2737653506e2f96244650c6411f47217cea8ab7d9b5fd27
SHA3-384 hash:	c96ee55626010e7e622d5611c3a11b0ddb253d65414e380b5fc7a4a8c837f86d6a81ecee089b58a370a2bb04b67a3eb4
SHA1 hash:	92ff835405070b911fa2fed705159562dfe00421
MD5 hash:	ba55467be1186635b8568164e7de973f
humanhash:	violet-kitten-social-butter
File name:	Notepad.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	1'197'568 bytes
First seen:	2024-03-23 17:50:00 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 113 x njrat, 80 x RedLineStealer)
ssdeep	24576:R7JjITr1aZUsd/MedVJndc9B0S+fenBvK8k:n81aZTdvffenk8
TLSH	T1E74523C316432B59EB2C34B5E8C690A9DE79F7C0639E46EB25F54571030C81B2DFA2AD
TrID	25.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 19.1% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.1% (.EXE) Win32 Executable (generic) (4504/4/1) 7.8% (.EXE) Win16/32 Executable Delphi generic (2072/23) 7.8% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter	smica83
Tags:	exe NjRAT UKR

Intelligence

File Origin

# of uploads :

# of downloads :

440

Origin country :

Vendor Threat Intelligence

Malware family:

njrat

ID:

File name:

bd55b89d4b2189c1a2737653506e2f96244650c6411f47217cea8ab7d9b5fd27.exe

Verdict:

Malicious activity

Analysis date:

2024-03-23 17:50:28 UTC

Tags:

njrat

Link:

https://app.any.run/tasks/629835a5-530a-4c8a-b5b0-7e233e3e5329

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a window

Creating a file in the %AppData% directory

Creating a file in the %temp% directory

Creating a process from a recently created file

Creating a file

Creating a process with a hidden window

Creating a file in the Windows subdirectories

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

Creating a file in the Program Files subdirectories

Searching for synchronization primitives

Connection attempt

Launching a process

Moving a file to the Program Files subdirectory

Replacing files

Launching the process to change the firewall settings

Creating a file in the mass storage device

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

bladabindi enigma lolbin obfuscated packed packed shell32

Link:

https://www.filescan.io/uploads/65ff164b36998d6609d79c1e/reports/58a3adc5-3cab-4269-a8fc-d5894903e9a6/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/bd55b89d4b2189c1a2737653506e2f96244650c6411f47217cea8ab7d9b5fd27

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

njRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/6c4f6f36-f135-49c7-aca1-8d2cbe49dbb9

Result

Threat name:

Njrat

Detection:

malicious

Classification:

phis.troj.adwa.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1414520

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Disables zone checking for all users

Drops PE files to the document folder of the user

Drops PE files to the startup folder

Found malware configuration

Hides threads from debuggers

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Modifies the windows firewall

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

PE file has nameless sections

Sigma detected: Suspicious Process Parents

Uses netsh to modify the Windows network and firewall settings

Yara detected Njrat

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/bd55b89d4b2189c1a2737653506e2f96244650c6411f47217cea8ab7d9b5fd27

Detection:

njrat

Link:

https://mwdb.cert.pl/sample/bd55b89d4b2189c1a2737653506e2f96244650c6411f47217cea8ab7d9b5fd27/

Threat name:

Win32.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2024-03-22 18:19:01 UTC

File Type:

PE (Exe)

AV detection:

23 of 24 (95.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xvk3rhklege4dittozjva3rpsysemuggiepuoil45kflpwnv7utq._file

Verdict:

malicious

Label(s):

njrat

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:hacked evasion trojan

Link:

https://tria.ge/reports/240323-wekgpsab97/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Drops file in Program Files directory

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Checks computer location settings

Drops startup file

Executes dropped EXE

Loads dropped DLL

Modifies Windows Firewall

njRAT/Bladabindi

Malware Config

C2 Extraction:

hakim32.ddns.net:2000
127.0.0.1:5552

Unpacked files

SH256 hash:

bd55b89d4b2189c1a2737653506e2f96244650c6411f47217cea8ab7d9b5fd27

MD5 hash:

ba55467be1186635b8568164e7de973f

SHA1 hash:

92ff835405070b911fa2fed705159562dfe00421

Detections:

SUSP_XORed_URL_In_EXE

Link:

https://www.unpac.me/results/c84c76db-7b69-435d-8968-45cabe50f8cf/

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/bd55b89d4b2189c1a2737653506e2f96244650c6411f47217cea8ab7d9b5fd27

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:	Borland Create hunting rule
Author:	malware-lu

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

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

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

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

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:	EnigmaStub Create hunting rule
Author:	@bartblaze
Description:	Identifies Enigma packer stub.

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	malware_Njrat_strings Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect njRAT in memory

Rule name:	MALWARE_Win_NjRAT Create hunting rule
Author:	ditekSHen
Description:	Detects NjRAT / Bladabindi / NjRAT Golden

Rule name:	MAL_njrat Create hunting rule
Author:	SECUINFRA Falcon Team

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

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:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

Rule name:	pe_imphash Create hunting rule

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

Rule name:	Skystars_LightDefender_Njrat_Rule Create hunting rule
Author:	Skystars LightDefender
Description:	Detects Njrat

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

Rule name:	SUSP_XORed_URL_In_EXE Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects an XORed URL in an executable
Reference:	https://twitter.com/stvemillertime/status/1237035794973560834

Rule name:	SUSP_XORed_URL_in_EXE_RID2E46 Create hunting rule
Author:	Florian Roth
Description:	Detects an XORed URL in an executable
Reference:	https://twitter.com/stvemillertime/status/1237035794973560834

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

Rule name:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

Rule name:	Windows_Trojan_Njrat_30f3c220 Create hunting rule

Rule name:	Windows_Trojan_Njrat_eb2698d2 Create hunting rule
Author:	Elastic Security

Rule name:	win_njrat_strings_oct_2023 Create hunting rule
Author:	Matthew @ Embee_Research

Rule name:	win_smominru_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.smominru.

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
CHECK_NX	Missing Non-Executable Memory Protection	critical

Reviews

ID	Capabilities	Evidence
SHELL_API	Manipulates System Shell	shell32.dll::ShellExecuteA
WIN_BASE_API	Uses Win Base API	kernel32.dll::LoadLibraryA
WIN_BASE_IO_API	Can Create Files	version.dll::GetFileVersionInfoA

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