MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 50f551c42e486b7373af0849ad98d55e2fd33fba29242b0f7146063827c8cb2d. 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: 13

Intelligence 13 IOCs 1 YARA 12 File information Comments

SHA256 hash:	50f551c42e486b7373af0849ad98d55e2fd33fba29242b0f7146063827c8cb2d
SHA3-384 hash:	ad24b1c6790c22b0c14055b395ed132a58759c198508a38f4114f10b9f293554f386e218b4d60587f2f9cdba0866f35c
SHA1 hash:	6f792fbb9caac24eb4eb7afb94699c856225fb3f
MD5 hash:	a09c751d80cd0b4ed6d0b25330e86ded
humanhash:	foxtrot-cat-friend-ack
File name:	a09c751d80cd0b4ed6d0b25330e86ded.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	28'672 bytes
First seen:	2021-11-15 01:31:14 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	384:HLLOPTk0S4OZ+4B6MPs/H9AUn1mlVhPLgNh0B6r1oSszyLTHcXIR+venptueZ2qY:rWTk0H54B5q1MlPcb0615LueZ2q+N
Threatray	173 similar samples on MalwareBazaar
TLSH	T1E9D2191AB3E5C710C6AD07364576C36303B1E257A536FB3E0CDA58E65F236908BC5AE2
Reporter	abuse_ch
Tags:	exe NjRAT RAT

abuse_ch

njrat C2:
188.48.69.228:5552

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
188.48.69.228:5552	https://threatfox.abuse.ch/ioc/248231/

Intelligence

File Origin

# of uploads :

# of downloads :

213

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Swapper XAED.exe

Verdict:

Malicious activity

Analysis date:

2021-11-11 02:08:55 UTC

Tags:

rat njrat bladabindi trojan

Link:

https://app.any.run/tasks/b943203f-3e1c-4c6c-86fd-01562de2f7d4

Note:

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

Detection:

njRat

Link:

https://www.capesandbox.com/analysis/205734/

Result

Verdict:

Malware

Maliciousness:

Behaviour

DNS request

Connection attempt

Sending a custom TCP 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

Using the Windows Management Instrumentation requests

Sending a UDP 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

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

bladabindi fingerprint greyware keylogger njrat obfuscated packed rat stealer

Link:

https://www.filescan.io/uploads/6191b8953edf00a722d48a79/reports/444828f7-862c-4ab1-83a7-8a6ccb80d832/overview

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/72e2f2a4-191c-4bfe-b6a6-a503516d75f6

Result

Threat name:

njRat

Detection:

malicious

Classification:

troj.adwa.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/889065

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

Connects to a pastebin service (likely for C&C)

Contains functionality to log keystrokes (.Net Source)

Creates autostart registry keys with suspicious names

Detected njRat

Drops PE files to the startup folder

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 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/50f551c42e486b7373af0849ad98d55e2fd33fba29242b0f7146063827c8cb2d/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2021-11-13 10:39:02 UTC

AV detection:

26 of 27 (96.30%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=kd2vdrbojbvxg45pbbe23ggvlyx5gp52fescwd3riyddqj6izmwq._file

Verdict:

malicious

Label(s):

njrat

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:hacked evasion persistence suricata trojan

Link:

https://tria.ge/reports/211115-bxzdcseadn/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Adds Run key to start application

Legitimate hosting services abused for malware hosting/C2

Drops startup file

Loads dropped DLL

Executes dropped EXE

Modifies Windows Firewall

njRAT/Bladabindi

suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

Unpacked files

SH256 hash:

50f551c42e486b7373af0849ad98d55e2fd33fba29242b0f7146063827c8cb2d

MD5 hash:

a09c751d80cd0b4ed6d0b25330e86ded

SHA1 hash:

6f792fbb9caac24eb4eb7afb94699c856225fb3f

Detections:

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/e40d87be-f586-40f6-95c3-e4b0047aa71d/

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

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:	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:	INDICATOR_SUSPICIOUS_EXE_RawPaste_URL Create hunting rule
Author:	ditekSHen
Description:	Detects executables (downlaoders) containing URLs to raw contents of a paste

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

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:	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:	Unknown_Malware_Sample_Jul17_2 Create hunting rule
Author:	Florian Roth
Description:	Detects unknown malware sample with pastebin RAW URL
Reference:	https://goo.gl/iqH8CK

Rule name:	Unknown_Malware_Sample_Jul17_2_RID326D Create hunting rule
Author:	Florian Roth
Description:	Detects unknown malware sample with pastebin RAW URL
Reference:	https://goo.gl/iqH8CK

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/205734/

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