MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c64981ad17309e21b795b0af8fc4174d4ebeaca4129ab73b50a37b96066daa3. 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: 18

Intelligence 18 IOCs 3 YARA 23 File information Comments

SHA256 hash:	4c64981ad17309e21b795b0af8fc4174d4ebeaca4129ab73b50a37b96066daa3
SHA3-384 hash:	0cb9a34df1fb91e0434e9a49d7635218e4c244eaa983e5d84879cfd442adf032c0db77089eb47db3ea63e1975a812821
SHA1 hash:	c29668edffbfa0e444ad56fbd5bc71d3aa81281e
MD5 hash:	8a40b60f37d095570a50f5edf2680d48
humanhash:	twenty-alanine-pip-foxtrot
File name:	8a40b60f37d095570a50f5edf2680d48.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	32'256 bytes
First seen:	2024-10-16 16:51:12 UTC
Last seen:	2025-02-05 07:57:46 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep	768:AjMXjwpJbb2zxxO56eqvPisfv8yQmIDUu0ti9Cj:XkKdisvQVkVj
TLSH	T162E22B6DFBEA4466D1BD0AB50571950007B8D103E523F77E4ECA24E62B6F6C84B88DF2
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
Reporter	abuse_ch
Tags:	exe NjRAT RAT

abuse_ch

njrat C2:
18.153.198.123:14673

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
18.153.198.123:14673	https://threatfox.abuse.ch/ioc/1337048/
52.57.120.10:14673	https://threatfox.abuse.ch/ioc/1337049/
18.192.31.30:14673	https://threatfox.abuse.ch/ioc/1337050/

Intelligence

File Origin

# of uploads :

# of downloads :

526

Origin country :

Vendor Threat Intelligence

Malware family:

njrat

ID:

File name:

8a40b60f37d095570a50f5edf2680d48.exe

Verdict:

Malicious activity

Analysis date:

2024-10-16 16:56:14 UTC

Tags:

njrat rat bladabindi remote

Link:

https://app.any.run/tasks/042eec44-c077-4fe1-9154-b49072d14f40

Note:

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

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=670fef32707bcd8537fc0894

Tags:

Bladabindi Powershell Njrat Proxy

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm bladabindi cmd fingerprint keylogger lolbin netsh njrat rat stealer vbnet winnti

Link:

https://www.filescan.io/uploads/670fef323b9fe36e2663577d/reports/def34a11-ee9d-48e7-9b6a-80c79bf0a0a0/overview

Verdict:

Malicious

Labled as:

Jalapeno.Generic

Link:

https://www.hybrid-analysis.com/sample/4c64981ad17309e21b795b0af8fc4174d4ebeaca4129ab73b50a37b96066daa3

Malware family:

njRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/c43290ac-0185-44a3-a9a6-5c1f86a637ff

Result

Threat name:

Njrat

Detection:

malicious

Classification:

phis.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1535244

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Connects to many ports of the same IP (likely port scanning)

Contains functionality to log keystrokes (.Net Source)

Disables zone checking for all users

Found malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Modifies the windows firewall

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

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/4c64981ad17309e21b795b0af8fc4174d4ebeaca4129ab73b50a37b96066daa3

Detection:

njrat

Link:

https://mwdb.cert.pl/sample/4c64981ad17309e21b795b0af8fc4174d4ebeaca4129ab73b50a37b96066daa3/

Threat name:

ByteCode-MSIL.Backdoor.njRAT

Status:

Malicious

First seen:

2024-05-31 05:03:49 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

34 of 38 (89.47%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=jrsjqgwrome6eg3zlmfpr7cbotkox2wkieu2w45vbi33sydg3krq._file

Verdict:

malicious

Label(s):

njrat

Similar samples:

error

njrat

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:upss discovery evasion persistence privilege_escalation trojan

Link:

https://tria.ge/reports/241016-vddr4avakq/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Event Triggered Execution: Netsh Helper DLL

System Location Discovery: System Language Discovery

Legitimate hosting services abused for malware hosting/C2

Modifies Windows Firewall

njRAT/Bladabindi

Malware Config

C2 Extraction:

0.tcp.eu.ngrok.io:14673

Verdict:

Malicious

Tags:

rat njrat

YARA:

malware_Njrat_strings win_njrat_strings_oct_2023 Windows_Trojan_Njrat_30f3c220 MAL_Njrat MALWARE_Win_NjRAT JPCERTCC_Njrat

Link:

https://app.threat.zone/submission/900ccd17-b9e4-4f42-b33f-9d238f444b74

Unpacked files

SH256 hash:

4c64981ad17309e21b795b0af8fc4174d4ebeaca4129ab73b50a37b96066daa3

MD5 hash:

8a40b60f37d095570a50f5edf2680d48

SHA1 hash:

c29668edffbfa0e444ad56fbd5bc71d3aa81281e

Detections:

NjRat

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/95696813-b9a8-448c-9125-6022e251e6ad/

Malware family:

njRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4c64981ad173/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/4c64981ad17309e21b795b0af8fc4174d4ebeaca4129ab73b50a37b96066daa3

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

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:	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:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

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

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

Rule name:	pe_imphash Create hunting rule

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_netsh_firewall_command Create hunting rule
Author:	SECUINFRA Falcon Team

Rule name:	SUSP_Ngrok_URL Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects a PE file that contains an ngrok.io URL. This can be used as C2 channel

Rule name:	Windows_Trojan_Njrat_30f3c220 Create hunting rule

Rule name:	Windows_Trojan_Njrat_30f3c220 Create hunting rule
Author:	Elastic Security

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

Rule name:	win_njrat_w1 Create hunting rule
Author:	Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:	Identify njRat

File information

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

Web download

njrat

exe 4c64981ad17309e21b795b0af8fc4174d4ebeaca4129ab73b50a37b96066daa3

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3238056/

Delivery method

Distributed via web download

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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