MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b3877630cdc3a3aff595b6ae113a53ccd0f0d551cb87d94ef09d3115bdce9f4. 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 4 File information Comments

SHA256 hash:	3b3877630cdc3a3aff595b6ae113a53ccd0f0d551cb87d94ef09d3115bdce9f4
SHA3-384 hash:	4ccf5b5409b1e097601fe3938b0aeda9da9cd58ee4d9b071bfee99eac984f037860327313430acd55b3920f484902bad
SHA1 hash:	027f553989d5be2f87aee0c2aa719bb064bffd75
MD5 hash:	2421c488fb9f26e44ae67e7dcf759cf6
humanhash:	sink-yankee-sweet-sad
File name:	2421c488fb9f26e44ae67e7dcf759cf6.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	24'064 bytes
First seen:	2021-03-31 20:17:51 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	384:fqYmCsg/yJrQ7hucGSl7UJx4g6JgfCcosjddmRvR6JZlbw8hqIusZzZXn:FrG0Btl7rRpcnu8
Threatray	599 similar samples on MalwareBazaar
TLSH	3EB22A0E3FA98896C56C167486A5565003B4A1870423EE2FCCC564DBAFB3AD92D4CAF8
Reporter	abuse_ch
Tags:	exe NjRAT RAT

abuse_ch

njrat C2:
95.211.239.203:96

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
95.211.239.203:96	https://threatfox.abuse.ch/ioc/6332/

Intelligence

File Origin

# of uploads :

# of downloads :

141

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

2421c488fb9f26e44ae67e7dcf759cf6.exe

Verdict:

Malicious activity

Analysis date:

2021-03-31 20:27:25 UTC

Tags:

rat njrat bladabindi trojan

Link:

https://app.any.run/tasks/babfa857-96c1-4a98-bdad-9f852de703d1

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/130085/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file in the %temp% directory

Creating a process from a recently created file

Creating a file

Sending a UDP request

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

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.

Gathering data

Detection:

njrat

Link:

https://mwdb.cert.pl/sample/3b3877630cdc3a3aff595b6ae113a53ccd0f0d551cb87d94ef09d3115bdce9f4/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2021-03-28 16:23:34 UTC

AV detection:

28 of 29 (96.55%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=hm4hoyym3q5dv72zlnvoce5fhtgq6dkvds4h3fhpbhjrcw645h2a._file

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat evasion persistence trojan

Link:

https://tria.ge/reports/210331-7e5y798f96/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Adds Run key to start application

Drops startup file

Loads dropped DLL

Executes dropped EXE

Modifies Windows Firewall

njRAT/Bladabindi

Unpacked files

SH256 hash:

3b3877630cdc3a3aff595b6ae113a53ccd0f0d551cb87d94ef09d3115bdce9f4

MD5 hash:

2421c488fb9f26e44ae67e7dcf759cf6

SHA1 hash:

027f553989d5be2f87aee0c2aa719bb064bffd75

Detections:

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/f2f8a0a5-c619-4649-8da8-153b25a526f9/

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/3b3877630cdc3a3aff595b6ae113a53ccd0f0d551cb87d94ef09d3115bdce9f4

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:	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 <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/130085/

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