MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bef49ecdc6d9018cb57d8edc53e2177387659c128abca00c86578cda6e88e61e. 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 YARA 7 File information Comments

SHA256 hash:	bef49ecdc6d9018cb57d8edc53e2177387659c128abca00c86578cda6e88e61e
SHA3-384 hash:	09bc6e1e55d3cc538e09283d439e5bcf30175210ce9b172e8b7746495a3045e43c67004f0773298d481f959dcf5c8c78
SHA1 hash:	45c6a48111848e2edf8bbd44fd101a8d8187b2f6
MD5 hash:	56d19814c32279f486c5495db6337452
humanhash:	minnesota-freddie-winner-network
File name:	6PRaskNs.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	28'672 bytes
First seen:	2021-03-09 19:47:51 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	384:GL7Dqkk8YceZGfCQ03U/n9ATp3jlVhPLgNh0Bbr1oSszyLTHcXIR+ven7ElueZ26:gqkk8Yc/Cb6eZlPcb0x15gueZ26
Threatray	7 similar samples on MalwareBazaar
TLSH	7DD2082AB3E1C711C6AD07328576936303B1E2579436FB7F1CDA58DA5F236908BC4AD2
Reporter	pmelson
Tags:	exe NjRAT

Intelligence

File Origin

# of uploads :

# of downloads :

225

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

6PRaskNs.exe

Verdict:

Malicious activity

Analysis date:

2021-03-09 19:49:19 UTC

Tags:

trojan rat njrat bladabindi

Link:

https://app.any.run/tasks/d398882f-c26e-438a-8bca-acbe0529f03b

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/123377/

Result

Verdict:

Malware

Maliciousness:

Behaviour

DNS request

Sending a custom TCP request

Creating a process with a hidden window

Creating a window

Using the Windows Management Instrumentation requests

Sending a UDP request

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/633493

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

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

Contains functionality to log keystrokes (.Net Source)

Detected njRat

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Modifies the windows firewall

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

Gathering data

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2021-03-09 19:48:10 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

41 of 47 (87.23%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=x32j5tog3eayznl5r3ofhyqxoodwlhasrk6kadegk6gnu3ui4ypa._file

Verdict:

malicious

njrat

7e31b3a603afe3a04745f35987db0d90e2643676b920df2185e11ae06ad32a4f

njrat

81337231c53d0927b5aaff1792d71b5f5270e268e1909267ad3bd79951e72642

njrat

9e17a9c1b1d0db2c9cd8fdf42c475712f8faaa68cb08bbff910a2927b910d88f

njrat

a550fdbbfd0b9b50ebff8877004ffa9914d0587c618389332c1c70a7b5b8bf0e

njrat

de129b85c2c4cd0e7d1817d2a8b3095d02ef8880f6273c88c0ff3cd48a9a9dd8

njrat

f230a396fdf98fb0a561e33d5fffcc3638531f2fa14b736faa449c459e05dab2

njrat

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat evasion trojan

Link:

https://tria.ge/reports/210309-4kryf3gwy2/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Legitimate hosting services abused for malware hosting/C2

Modifies Windows Firewall

njRAT/Bladabindi

Unpacked files

SH256 hash:

bef49ecdc6d9018cb57d8edc53e2177387659c128abca00c86578cda6e88e61e

MD5 hash:

56d19814c32279f486c5495db6337452

SHA1 hash:

45c6a48111848e2edf8bbd44fd101a8d8187b2f6

Detections:

win_njrat_g1

win_njrat_w1

Link:

https://www.unpac.me/results/6af3f60d-5485-44ea-87c1-62fa7807cf7e/

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/bef49ecdc6d9018cb57d8edc53e2177387659c128abca00c86578cda6e88e61e

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

Rule name:	Malware_QA_not_copy Create hunting rule
Author:	Florian Roth
Description:	VT Research QA uploaded malware - file not copy.exe
Reference:	VT Research QA

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:	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