MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd6e990e83a947ee95fc38e33ef891fcd2adca0c669eba160cca49895471663a. 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 4 YARA 9 File information Comments 1

SHA256 hash:	cd6e990e83a947ee95fc38e33ef891fcd2adca0c669eba160cca49895471663a
SHA3-384 hash:	c0dda60df98a927c1fd141b76ec140eaa3bd2a347a7947647606cc4debf974c46134de36937fcc3423421f473efb761e
SHA1 hash:	7b2da0cac13461f09bfba7fad96253e517098ce7
MD5 hash:	3daf792075ad0eeacae676b0d7f80a68
humanhash:	quiet-bluebird-victor-magazine
File name:	3daf792075ad0eeacae676b0d7f80a68.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	32'256 bytes
First seen:	2021-05-08 15:25:23 UTC
Last seen:	2021-05-08 16:00:45 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	768:9PwoqkZlH/azx1+ta+q3U97v8+QmIDUu0tioYj:w4qSp7QVkwj
Threatray	76 similar samples on MalwareBazaar
TLSH	7BE21A6DFBF64466D1BC0AB50571950003B4E103E523F77E4ECA24E62B6B6D84B98DF2
Reporter	abuse_ch
Tags:	exe NjRAT RAT

abuse_ch

njrat C2:
3.141.210.37:12336

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
3.141.210.37:12336	https://threatfox.abuse.ch/ioc/33274/
18.189.106.45:12336	https://threatfox.abuse.ch/ioc/33275/
3.141.177.1:12336	https://threatfox.abuse.ch/ioc/33276/
3.140.223.7:12336	https://threatfox.abuse.ch/ioc/33277/

Intelligence

File Origin

# of uploads :

# of downloads :

235

Origin country :

n/a

Vendor Threat Intelligence

Detection:

njRat

Link:

https://www.capesandbox.com/analysis/153261/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

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 window

DNS request

Using the Windows Management Instrumentation requests

Sending a custom TCP request

Unauthorized injection to a recently created 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/718837

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

C2 URLs / IPs found in malware configuration

Contains functionality to log keystrokes (.Net Source)

Detected njRat

Found malware configuration

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 domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

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/cd6e990e83a947ee95fc38e33ef891fcd2adca0c669eba160cca49895471663a/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2021-05-06 05:38:55 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

42 of 47 (89.36%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=zvxjsdudvfd65fp4hdrt56er7tjk3sqmm2plufqmzjeysvdrmy5a._file

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat evasion trojan

Link:

https://tria.ge/reports/210508-dqg6hl9kh2/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Loads dropped DLL

Executes dropped EXE

Modifies Windows Firewall

njRAT/Bladabindi

Unpacked files

SH256 hash:

cd6e990e83a947ee95fc38e33ef891fcd2adca0c669eba160cca49895471663a

MD5 hash:

3daf792075ad0eeacae676b0d7f80a68

SHA1 hash:

7b2da0cac13461f09bfba7fad96253e517098ce7

Detections:

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/2c80eb00-c171-4d6a-b30e-e0a0e2dc3744/

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/cd6e990e83a947ee95fc38e33ef891fcd2adca0c669eba160cca49895471663a

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

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:	pe_imphash Create hunting rule

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

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:	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.

Cape

https://www.capesandbox.com/analysis/153261/

Comments

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a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-08 15:59:22 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection