MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 410bfd3ac457f14f653b82ad2090dbdd24c5d689d4bb766f6c18e1c1ee8c171a. 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: 7

Intelligence 7 IOCs YARA 8 File information Comments

SHA256 hash:	410bfd3ac457f14f653b82ad2090dbdd24c5d689d4bb766f6c18e1c1ee8c171a
SHA3-384 hash:	d74eb61abfe12aa4fc11df57208563702e73aa1baea3f18921495fd8e7f11b76bd5640a7d788726fed346bdc22d11db6
SHA1 hash:	49d1056e48981200f7674432c0562163a8d65db5
MD5 hash:	f88564ad95f97097002bfa11a67d288f
humanhash:	nuts-sink-six-eight
File name:	Invoice#4110.vbs
Download:	download sample
Signature	njrat Create hunting rule
File size:	748 bytes
First seen:	2021-08-24 11:37:11 UTC
Last seen:	Never
File type:	vbs
MIME type:	text/plain
ssdeep	12:0ChGFWNgy2XNoxAbOJk82cG2bwELPdg3Nfd+aaiTC:HgFWN0XQXG2UE7kNEuC
Threatray	101 similar samples on MalwareBazaar
TLSH	T12101F60A7D29CDDB0149F18642C38DE9C6604A67CF806E7A2478764B6DAD22F6DCCD47
Reporter	abuse_ch
Tags:	NjRAT RAT vbs

Intelligence

File Origin

# of uploads :

# of downloads :

516

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/181851/

Result

Verdict:

SUSPICIOUS

Result

Threat name:

Njrat

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/838187

Signature

.NET source code contains potential unpacker

C2 URLs / IPs found in malware configuration

Creates an undocumented autostart registry key

Found malware configuration

Injects a PE file into a foreign processes

Malicious sample detected (through community Yara rule)

Obfuscated command line found

Sigma detected: Suspicious PowerShell Command Line

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

VBScript performs obfuscated calls to suspicious functions

Writes to foreign memory regions

Wscript starts Powershell (via cmd or directly)

Yara detected MSILLoadEncryptedAssembly

Yara detected Njrat

Yara detected Powershell download and execute

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/410bfd3ac457f14f653b82ad2090dbdd24c5d689d4bb766f6c18e1c1ee8c171a/

Threat name:

Script.Downloader.Heuristic

Status:

Malicious

First seen:

2021-08-24 11:38:08 UTC

AV detection:

3 of 46 (6.52%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ief72owek7yu6zj3qkwsbeg33usmlvuj2s5xm33mddq4d3umc4na._file

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:boss spyware stealer suricata trojan

Link:

https://tria.ge/reports/210824-42jev6jp66/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Loads dropped DLL

Reads user/profile data of web browsers

Blocklisted process makes network request

Executes dropped EXE

NirSoft WebBrowserPassView

Nirsoft

njRAT/Bladabindi

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

Malware Config

C2 Extraction:

103.147.184.73:7103

Dropper Extraction:

https://transfer.sh/Bnlx/passsssssssssssssss_bypass.txt

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/410bfd3ac457/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/410bfd3ac457f14f653b82ad2090dbdd24c5d689d4bb766f6c18e1c1ee8c171a

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_ASEP_REG_Reverse Create hunting rule
Author:	ditekSHen
Description:	Detects file containing reversed ASEP Autorun registry keys

Rule name:	INDICATOR_SUSPICIOUS_EXE_attrib Create hunting rule
Author:	ditekSHen
Description:	Detects executables using attrib with suspicious attributes attributes

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:	PowerShell_Case_Anomaly Create hunting rule
Author:	Florian Roth
Description:	Detects obfuscated PowerShell hacktools
Reference:	https://twitter.com/danielhbohannon/status/905096106924761088

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

njrat

vbs 410bfd3ac457f14f653b82ad2090dbdd24c5d689d4bb766f6c18e1c1ee8c171a

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/181851/

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