MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683. 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: 10

Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash:	1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683
SHA3-384 hash:	99932c9258b8d9fde76c9725d59e66faba96adbbf3e9f2d2836534f388b1d67dfc8d9acf56a8252fd719732931f4a092
SHA1 hash:	13a637e413dcb6ee1ef3bc4434653a9c16151b1f
MD5 hash:	908bc4e4033a4107ad5696a0942b7c3e
humanhash:	music-vegan-fifteen-beryllium
File name:	nTGwZqW4.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	24'064 bytes
First seen:	2020-09-12 08:17:20 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep	384:vMQ+SAN7uprgvM5OSUswZXg69gbm4hfpFmRvR6JZlbw8hqIusZzZwd9:7OaxVULRpcnuJ
Threatray	299 similar samples on MalwareBazaar
TLSH	D4B22A4E3FA98856C5BC17748AA5965003B091870423EE2FCDC550DBAFB3AD91D8CAFD
Reporter	pmelson
Tags:	exe NjRAT

Intelligence

File Origin

# of uploads :

# of downloads :

175

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Njrat

Link:

https://www.capesandbox.com/analysis/58752/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a file in the %AppData% directory

Creating a process from a recently created file

Creating a file

Creating a process with a hidden window

Creating a window

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

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

Enabling autorun by creating a file

Result

Threat name:

njRat BrowserPasswordDump Tool

Detection:

malicious

Classification:

phis.troj.adwa.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/464690

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Contains functionality to log keystrokes (.Net Source)

Contains functionality to steal Internet Explorer form passwords

Creates autostart registry keys with suspicious names

Detected njRat

Drops PE files to the startup folder

Injects a PE file into a foreign processes

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

Sample uses process hollowing technique

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

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to steal Instant Messenger accounts or passwords

Uses netsh to modify the Windows network and firewall settings

Writes to foreign memory regions

Yara detected BrowserPasswordDump Tool by SecurityXploded

Yara detected Njrat

Behaviour

Behavior Graph:

Download SVG

Detection:

njrat

Link:

https://mwdb.cert.pl/sample/1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2020-09-12 08:19:04 UTC

AV detection:

28 of 29 (96.55%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=dz3vsmdtzz6foitmkxra2xfc4coijsdkba5j2vvt3un3omrqk2bq._file

Result

Malware family:

njrat

Score:

10/10

Tags:

trojan family:njrat evasion persistence

Link:

https://tria.ge/reports/200912-g39we1jq4a/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Modifies service

Adds Run key to start application

Drops startup file

Loads dropped DLL

Executes dropped EXE

Modifies Windows Firewall

njRAT/Bladabindi

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/1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683

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

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 1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683

(this sample)

Link

https://www.virustotal.com/gui/file/1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683/detection

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/58752/

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample