MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c50488a31b6ce8d0ddd65b57bd27cf8c1bc86ad0382476f813c33083c5575d6f. 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: 12

Intelligence 12 IOCs 1 YARA 11 File information Comments

SHA256 hash:	c50488a31b6ce8d0ddd65b57bd27cf8c1bc86ad0382476f813c33083c5575d6f
SHA3-384 hash:	d945eded30d362fdfe7587ee5208ffaa5115646365add8cff78e27ba006f7ce47d395a7b72384ae965d6e73d8755be5c
SHA1 hash:	9d05a045e0ce402ff257d799921a9557a2569535
MD5 hash:	4adad151f3c235616ce57238c32b4b34
humanhash:	orange-thirteen-xray-seventeen
File name:	C50488A31B6CE8D0DDD65B57BD27CF8C1BC86AD038247.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	32'256 bytes
First seen:	2021-09-30 21:21:11 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	768:RPwoqkZlH/azx1+ta+q3U97v8+QmIDUu0tiJYDj:s4qSp7QVkQSj
Threatray	141 similar samples on MalwareBazaar
TLSH	T12BE22A6DFBF64466D1BC0AB50571950013B8E003E523F77E4ECA24E62B6B6D84B94DF2
Reporter	abuse_ch
Tags:	exe NjRAT RAT

abuse_ch

njrat C2:
3.14.182.203:11421

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
3.14.182.203:11421	https://threatfox.abuse.ch/ioc/9765/

Intelligence

File Origin

# of uploads :

# of downloads :

320

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

C50488A31B6CE8D0DDD65B57BD27CF8C1BC86AD038247.exe

Verdict:

Malicious activity

Analysis date:

2021-09-30 21:26:58 UTC

Tags:

rat njrat bladabindi trojan

Link:

https://app.any.run/tasks/a312eafc-6863-4917-bc33-97d5275aa81f

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/193791/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Creating a process with a hidden window

Using the Windows Management Instrumentation requests

Creating a window

Connection attempt to an infection source

Creating a file in the mass storage device

Launching the process to change the firewall settings

Firewall traversal

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

Query of malicious DNS domain

Sending a TCP request to an infection source

Enabling autorun by creating a file

Malware family:

njRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/17f9ac3f-c67e-4b97-96e9-e9eac082551a

Result

Threat name:

njRat

Detection:

malicious

Classification:

troj.adwa.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/862328

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)

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 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/c50488a31b6ce8d0ddd65b57bd27cf8c1bc86ad0382476f813c33083c5575d6f/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2020-05-20 13:56:04 UTC

AV detection:

25 of 26 (96.15%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=yuciriy3ntunbxowlnl32j6prqn4q2wqhashn6atymyihrkxlvxq._file

Verdict:

malicious

Label(s):

njrat

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:cheat evasion persistence suricata trojan

Link:

https://tria.ge/reports/210930-z7w8raaefn/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Adds Run key to start application

Drops startup file

Modifies Windows Firewall

njRAT/Bladabindi

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

Malware Config

C2 Extraction:

0.tcp.ngrok.io:11421

Unpacked files

SH256 hash:

c50488a31b6ce8d0ddd65b57bd27cf8c1bc86ad0382476f813c33083c5575d6f

MD5 hash:

4adad151f3c235616ce57238c32b4b34

SHA1 hash:

9d05a045e0ce402ff257d799921a9557a2569535

Detections:

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/44576399-028b-4fcb-92dd-42c242cd34e3/

Malware family:

Winnti Group

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/c50488a31b6c/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/c50488a31b6ce8d0ddd65b57bd27cf8c1bc86ad0382476f813c33083c5575d6f

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:	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:	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:	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:	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/193791/

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