MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b4dffe14c52cb879f4b6863d8a8cffcea4bdecf1d43f01a4326398348bf1186. 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: 11

Intelligence 11 IOCs YARA 5 File information Comments

SHA256 hash:	3b4dffe14c52cb879f4b6863d8a8cffcea4bdecf1d43f01a4326398348bf1186
SHA3-384 hash:	8b218125c14831573da4bef299b66754f17c5de6ad3beb7b04f38d92e0d0e2d0ff09a16eef950eda5ba902c9485d9c10
SHA1 hash:	116f8de87ec52e24b28d02fa18414c3f72ca43d8
MD5 hash:	eb7587c666290559325b00e858cfa85f
humanhash:	edward-nineteen-alpha-salami
File name:	sJpL0Ri5.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	32'256 bytes
First seen:	2020-11-29 21:32:22 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	768:ojMXxwpJbb2zxxO5Q6qHJisfviIQmIDUu0ti3Mkj:VkKpisrQVkKtj
Threatray	50 similar samples on MalwareBazaar
TLSH	41E22B6DFBFA4465D1BC0AB50571950017B8D003E523F77E4ECA24A62B6B7D84B88DF2
Reporter	pmelson
Tags:	exe NjRAT

Intelligence

File Origin

# of uploads :

# of downloads :

420

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Njrat

Link:

https://www.capesandbox.com/analysis/105984/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a process with a hidden window

Creating a window

DNS request

Using the Windows Management Instrumentation requests

Sending a custom TCP request

Launching a process

Launching the process to change the firewall settings

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.

Result

Threat name:

njRat

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/550529

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

Contains functionality to log keystrokes (.Net Source)

Detected njRat

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Modifies the windows firewall

Multi AV Scanner detection for submitted file

Uses netsh to modify the Windows network and firewall settings

Yara detected Njrat

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3b4dffe14c52cb879f4b6863d8a8cffcea4bdecf1d43f01a4326398348bf1186/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2020-11-29 21:33:08 UTC

AV detection:

25 of 29 (86.21%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=hng77ykmklfyph2lnbr5rkgp7tvexxwpdvb7agsdey4ygsf7cgda._file

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat evasion trojan

Link:

https://tria.ge/reports/201129-hddttmlqa6/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Modifies Windows Firewall

njRAT/Bladabindi

Unpacked files

SH256 hash:

3b4dffe14c52cb879f4b6863d8a8cffcea4bdecf1d43f01a4326398348bf1186

MD5 hash:

eb7587c666290559325b00e858cfa85f

SHA1 hash:

116f8de87ec52e24b28d02fa18414c3f72ca43d8

Detections:

win_njrat_g1

win_njrat_w1

Link:

https://www.unpac.me/results/b70071a7-42f9-4cc9-ab74-7207a6a3789b/

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

Threat name:

NJRat

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/3b4dffe14c52cb879f4b6863d8a8cffcea4bdecf1d43f01a4326398348bf1186

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
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146

Rule name:	MAL_Winnti_Sample_May18_1 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:	Njrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect njRAT in memory

Rule name:	Ping_Del_method_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	cmd ping IP nul del

Rule name:	win_njrat_w1 Create hunting rule
Author:	Brian Wallace @botnet_hunter
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 3b4dffe14c52cb879f4b6863d8a8cffcea4bdecf1d43f01a4326398348bf1186

(this sample)

Link

https://www.virustotal.com/gui/file/3b4dffe14c52cb879f4b6863d8a8cffcea4bdecf1d43f01a4326398348bf1186/detection

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/105984/

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