MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6bdd45cc12be24d4b59d84925b035bac59bc1dcfc8aa17b28cf0018cd15443a8. 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: 18


Intelligence 18 IOCs 1 YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6bdd45cc12be24d4b59d84925b035bac59bc1dcfc8aa17b28cf0018cd15443a8
SHA3-384 hash: d53e7bf4c888736b6fdab9615354a6e11df14fa32b0fce0d8ecd8cdfeca5e631cdede332d66b1f33591644c67843e0f5
SHA1 hash: 4617c211b0cf6066ec257319a96c7b06673bd624
MD5 hash: f8bbb07b572b4f6764a920057f33a698
humanhash: india-monkey-virginia-november
File name:Server.exe
Download: download sample
Signature njrat
Create hunting rule
File size:36'864 bytes
First seen:2024-07-14 14:41:12 UTC
Last seen:2024-07-24 15:29:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'859 x AgentTesla, 19'785 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 384:OtVMiLJBndznNCyMGmN4y3VncG6DSprAF+rMRTyN/0L+EcoinblneHQM3epzXvzi:U/RNRMGmNJJd6ErM+rMRa8NuFWt
Threatray 1'488 similar samples on MalwareBazaar
TLSH T11EF2394D7BE18168C9FE167B05B2D4130777E04F5E23D90D8EE6A4AA37236C18B54EE2
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter nickkuechel
Tags:exe NjRAT

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
147.185.221.21:3238 https://threatfox.abuse.ch/ioc/1295962/

Intelligence

File Origin
# of uploads :
2
# of downloads :
406
Origin country :
US US
Vendor Threat Intelligence
Malware family:
securityxploded
Create hunting rule
ID:
1
File name:
RepoNjrat(نجرات ريبو).rar
Verdict:
Malicious activity
Analysis date:
2024-07-09 12:06:41 UTC
Tags:
securityxploded
Link:
https://app.any.run/tasks/063034a4-6348-4d6f-b68a-ca9d9dd1bd76

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29039.UNOFFICIAL
Create hunting rule

Win.Dropper.Nanocore-10030076-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6693e3babcca3f923eb468adwin10vpnfull_triage
Tags:
Execution Network Spreading Stealth Trojan Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Enabling the 'hidden' option for analyzed file
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Enabling the 'hidden' option for files in the %temp% directory
Enabling the 'hidden' option for recently created files
Creating a window
Searching for synchronization primitives
Connection attempt
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
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autorun bladabindi cmd explorer fingerprint keylogger lolbin lolbin nanocore netsh njrat rat stealer vbnet
Link:
https://www.filescan.io/uploads/6693e3bb85dee577877f37f0/reports/9aa6f956-f9ff-4600-814c-dd44a1172281/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6bdd45cc12be24d4b59d84925b035bac59bc1dcfc8aa17b28cf0018cd15443a8
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.
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e734bf0b-e16b-4b37-9f23-a0fd9c884107
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1472879
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
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 autorun.inf (USB autostart)
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Drops PE files with benign system names
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
Sigma detected: Drops fake system file at system root drive
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: New RUN Key Pointing to Suspicious Folder
Snort IDS alert for network traffic
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1472879 Sample: Server.exe Startdate: 14/07/2024 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 16 other signatures 2->48 8 Server.exe 1 6 2->8         started        11 System.exe 2 2->11         started        13 System.exe 3 2->13         started        15 System.exe 2 2->15         started        process3 file4 34 C:\Users\user\AppData\Local\Temp\System.exe, PE32 8->34 dropped 36 C:\Users\user\...\System.exe:Zone.Identifier, ASCII 8->36 dropped 38 C:\Users\user\AppData\...\Server.exe.log, ASCII 8->38 dropped 17 System.exe 2 11 8->17         started        process5 dnsIp6 40 147.185.221.21, 3238, 49704 SALSGIVERUS United States 17->40 26 C:\svchost.exe, PE32 17->26 dropped 28 C:\...\b9ac204121aeb89afba5c1de324757b0.exe, PE32 17->28 dropped 30 C:\svchost.exe:Zone.Identifier, ASCII 17->30 dropped 32 2 other malicious files 17->32 dropped 50 Antivirus detection for dropped file 17->50 52 Multi AV Scanner detection for dropped file 17->52 54 Protects its processes via BreakOnTermination flag 17->54 56 7 other signatures 17->56 22 netsh.exe 2 17->22         started        file7 signatures8 process9 process10 24 conhost.exe 22->24         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6bdd45cc12be24d4b59d84925b035bac59bc1dcfc8aa17b28cf0018cd15443a8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6bdd45cc12be24d4b59d84925b035bac59bc1dcfc8aa17b28cf0018cd15443a8/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2024-07-09 12:45:00 UTC
File Type:
PE (.Net Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=npoultasxysnjnm5qsjfwa23vrm3yhopzcvbpmum6aayzukuioua._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
0a613705ceebf383ab71a0737b60833fa0e89c22d775c1d6cca04a926e88ca29
njrat
0d2e0fcd0d0b7034acb740ce51baa0bec329c0c8547dd7caf2aabb5c91c7dc99
njrat
502869ac1880a412f2a5d8dae93b506d98acb48f10cdb32bcdc3517fc9721711
njrat
6a65ffab90209b9a5fad0523b2878228f7062afc4679742d1efa0e77f419a8d8
njrat
6d3d9cec199ecf570a4fe0c21c3a0d09b9dabc36f90b609e854740a4fb6510ce
njrat
b7087b4779d76ca804a68f5f73e64a3e94c24fea7a1469f29860b372ca498f92
njrat
c7b4072d1237617b13a7613c46e5a4b63bd8e09b7c9eba9409133fdd0aee7b10
njrat
+ 1'478 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:repoh2cker evasion persistence privilege_escalation trojan
Link:
https://tria.ge/reports/240714-r2zspavbpp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Drops autorun.inf file
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
147.185.221.21:3238
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/41812383-07b9-47e3-aa40-bc378e550ac2
Unpacked files
SH256 hash:
6bdd45cc12be24d4b59d84925b035bac59bc1dcfc8aa17b28cf0018cd15443a8
MD5 hash:
f8bbb07b572b4f6764a920057f33a698
SHA1 hash:
4617c211b0cf6066ec257319a96c7b06673bd624
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/22654f09-2ae3-4921-b8dc-4042e0c81bb9/
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/6bdd45cc12be24d4b59d84925b035bac59bc1dcfc8aa17b28cf0018cd15443a8

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:Mal_WIN_NjRAT_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect NjRAT implant.
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
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

Executable exe 6bdd45cc12be24d4b59d84925b035bac59bc1dcfc8aa17b28cf0018cd15443a8

(this sample)

  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments