MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fa28ad86ab796c8e18096badc31bcb1719474d268945172d983bb30ded219944. 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: 14

Intelligence 14 IOCs 1 YARA 8 File information Comments

SHA256 hash:	fa28ad86ab796c8e18096badc31bcb1719474d268945172d983bb30ded219944
SHA3-384 hash:	54b8fefc6862a73a7a57039a1839e6424247023e871dbecde1f2b022ca4f35f1f83a5ddbdfd339762a0dc5d35c9b0a5d
SHA1 hash:	18ab864d6790086218b1350df091ad5e84bb1a4c
MD5 hash:	721379f79a9bf4f463d7e0998698fbd5
humanhash:	sixteen-stairway-seventeen-aspen
File name:	S.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	24'064 bytes
First seen:	2022-02-01 15:37:01 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	384:HY324bcgPiJLQrfARGSRUJsbY6ZgvSMBD3t8mRvR6JZlbw8hqIusZzZUTC:QL2s+tRyRpcnule
Threatray	1'014 similar samples on MalwareBazaar
TLSH	T185B22A0E3FA98856C5AC1B7096B6965003B091470423EE3FCCC554DBAFB36DA2D48EF8
Reporter	r3dbU7z
Tags:	exe NjRAT

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
111.90.149.115:9443	https://threatfox.abuse.ch/ioc/373955/

Intelligence

File Origin

# of uploads :

# of downloads :

250

Origin country :

n/a

Vendor Threat Intelligence

Detection:

njRat

Link:

https://www.capesandbox.com/analysis/229207/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Searching for synchronization primitives

Creating a file

Searching for the window

Launching a service

DNS request

Creating a process with a hidden window

Creating a window

Creating a file in the %AppData% subdirectories

Using the Windows Management Instrumentation requests

Sending a custom TCP request

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

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

cmd.exe fingerprint greyware keylogger netsh.exe njrat obfuscated packed rat replace.exe stealer update.exe

Link:

https://www.filescan.io/uploads/61f953a818d1bfdde4e7211f/reports/3343c4a6-72c3-49ab-92e4-f712550186c6/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.

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/a27e28c4-c34b-4d12-a6e0-2106bf8ed7f1

Result

Threat name:

njRat

Detection:

malicious

Classification:

troj.adwa.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/931791

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

Antivirus detection for URL or domain

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

Protects its processes via BreakOnTermination flag

Uses netsh to modify the Windows network and firewall settings

Yara detected Njrat

Behaviour

Behavior Graph:

Download SVG

Detection:

njrat

Link:

https://mwdb.cert.pl/sample/fa28ad86ab796c8e18096badc31bcb1719474d268945172d983bb30ded219944/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2021-12-23 04:39:00 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

41 of 43 (95.35%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=7iuk3bvlpfwi4gajnow4gg6lc4muotjgrfcrolmyhozq33jbtfca._file

Verdict:

malicious

Label(s):

njrat

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:prueba

Link:

https://tria.ge/reports/220201-s2ggsaggep/

Malware Config

C2 Extraction:

111.90.149.115:9443

Unpacked files

SH256 hash:

fa28ad86ab796c8e18096badc31bcb1719474d268945172d983bb30ded219944

MD5 hash:

721379f79a9bf4f463d7e0998698fbd5

SHA1 hash:

18ab864d6790086218b1350df091ad5e84bb1a4c

Detections:

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/040a5ee4-e18e-404b-a215-5d1de3cffadf/

Malware family:

njRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/fa28ad86ab79/report/overview.html

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

Threat name:

NJRat

Score:

0.90

Link:

https://yomi.yoroi.company/submissions/fa28ad86ab796c8e18096badc31bcb1719474d268945172d983bb30ded219944

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_Njrat_strings Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect njRAT in memory

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

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.

Web download

njrat

exe fa28ad86ab796c8e18096badc31bcb1719474d268945172d983bb30ded219944

(this sample)

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/229207/

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