MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4685803ad19d283ca259f4af5fff5f0c397c0fe0c3032b663d0b99d510c4fcb6. 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: 16


Intelligence 16 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4685803ad19d283ca259f4af5fff5f0c397c0fe0c3032b663d0b99d510c4fcb6
SHA3-384 hash: f4f2fdf607a2a65c9d63d8f622e5154db1224fe856b1828fb59aaee01d171001db91f8651adb1330ecc3e5d6fe83382e
SHA1 hash: 6bee61858fbf3152f748b3dcdffe0509a8d30a57
MD5 hash: 200a92ad17110cb3dacc7387b12186c6
humanhash: carolina-georgia-coffee-two
File name:200a92ad17110cb3dacc7387b12186c6.exe
Download: download sample
Signature njrat
Create hunting rule
File size:32'256 bytes
First seen:2024-04-20 16:25:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:oJhOBb13hdwzxLy3gcEOvVMRvqfQmIDUu0tiBdj:gUZ6WZ6AQVkuj
TLSH T128E21AADFBEA4466D2BC0AB50571950013B4D103E523F77E4ECA24A62B6F7D84B84DF2
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 abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
83.196.78.85:8080

Intelligence

File Origin
# of uploads :
1
# of downloads :
634
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
4685803ad19d283ca259f4af5fff5f0c397c0fe0c3032b663d0b99d510c4fcb6.exe
Verdict:
Malicious activity
Analysis date:
2024-04-20 16:25:57 UTC
Tags:
rat njrat bladabindi remote
Link:
https://app.any.run/tasks/6a1fc3b9-3320-4813-a004-6b6510697a3a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
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
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
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm bladabindi cmd fingerprint keylogger lolbin netsh njrat njrat rat stealer winnti
Link:
https://www.filescan.io/uploads/6623ec9a54bafb7d21d56b33/reports/9fd969cf-91e7-4234-8d9e-cbabfdb0ff60/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4685803ad19d283ca259f4af5fff5f0c397c0fe0c3032b663d0b99d510c4fcb6
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:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f2ff2acb-8417-4289-9037-dce44a47103b
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
phis.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1429083
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
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Disables zone checking for all users
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 dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: New RUN Key Pointing to Suspicious Folder
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: 1429083 Sample: YKTNuK117e.exe Startdate: 20/04/2024 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for dropped file 2->36 38 11 other signatures 2->38 8 YKTNuK117e.exe 1 5 2->8         started        11 WindowsServices.exe 3 2->11         started        13 WindowsServices.exe 2 2->13         started        15 WindowsServices.exe 2 2->15         started        process3 file4 28 C:\Users\user\AppData\...\WindowsServices.exe, PE32 8->28 dropped 17 WindowsServices.exe 4 5 8->17         started        process5 dnsIp6 30 83.196.78.85, 49730, 49737, 49738 FranceTelecom-OrangeFR France 17->30 26 C:\...\19447a578b6a3b2cdbc5a3dc3e7f5251.exe, PE32 17->26 dropped 40 Antivirus detection for dropped file 17->40 42 Multi AV Scanner detection for dropped file 17->42 44 Protects its processes via BreakOnTermination flag 17->44 46 6 other signatures 17->46 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/4685803ad19d283ca259f4af5fff5f0c397c0fe0c3032b663d0b99d510c4fcb6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4685803ad19d283ca259f4af5fff5f0c397c0fe0c3032b663d0b99d510c4fcb6/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2024-04-17 16:19:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i2cyaowrtuudzisz6sxv7727bq4xyd7aymbswzr5bom5kege7s3a._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:ok evasion persistence trojan
Link:
https://tria.ge/reports/240420-txhdysda5y/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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:
83.196.78.85:8080
Unpacked files
SH256 hash:
4685803ad19d283ca259f4af5fff5f0c397c0fe0c3032b663d0b99d510c4fcb6
MD5 hash:
200a92ad17110cb3dacc7387b12186c6
SHA1 hash:
6bee61858fbf3152f748b3dcdffe0509a8d30a57
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Njrat
Create hunting rule
MALWARE_Win_NjRAT
Create hunting rule
CN_disclosed_20180208_c
Create hunting rule
MAL_Winnti_Sample_May18_1
Create hunting rule
Link:
https://www.unpac.me/results/dcf889d1-5630-4357-bdec-9d62c323fc9f/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4685803ad19d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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 (Nextron Systems)
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: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_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 / NjRAT Golden
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:MAL_Winnti_Sample_May18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:MAL_Winnti_Sample_May18_1_RID3003
Create hunting rule
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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_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: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_strings_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
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.

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

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