MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937. 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: 21


Intelligence 21 IOCs 1 YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937
SHA3-384 hash: 0afa4b80de3ed11257641e922f364fec7d3a1ab23850bad472b8ea107236bb1ef1c890886c124fa70bf2489274ea1031
SHA1 hash: 0c14b86074caef354112cc2f6b179e6fb9335257
MD5 hash: e88715ec4a65e76862ee9d7039a53bca
humanhash: king-solar-neptune-spaghetti
File name:Server.exe
Download: download sample
Signature njrat
Create hunting rule
File size:95'232 bytes
First seen:2026-04-14 03:30:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'860 x AgentTesla, 19'793 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 1536:b+VFQWqkqqoLc2mJiIjEwzGi1dDSDugS:b+VmkqqoA2Gi5i1dcT
Threatray 645 similar samples on MalwareBazaar
TLSH T11493E84977E56524E1BF56F79471F2004E34B48B1602E39D48F219AB0A33AC48F89FEB
TrID 70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win64 Executable (generic) (6522/11/2)
4.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
209.25.141.27:1073

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
209.25.141.27:1073 https://threatfox.abuse.ch/ioc/1785487/

Intelligence

File Origin
# of uploads :
1
# of downloads :
143
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
njRAT
Details
njRAT
a c2 socket address, missionid, mutex, filename, and flags
Link:
https://research.acce.ciphertechsolutions.com/results/e87323c5-c174-4c92-b416-d962efb3d04f/
Malware family:
njrat
Create hunting rule
ID:
1
File name:
Server.exe
Verdict:
Malicious activity
Analysis date:
2026-04-14 03:05:07 UTC
Tags:
auto-startup botnet generic njrat
Link:
https://app.any.run/tasks/1696feaa-6383-4d4b-b565-4acce1e0fd27

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/61463/
Detection(s):
Win.Packed.Generic-9795615-0
Create hunting rule

Win.Dropper.njRAT-10015886-0
Create hunting rule

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

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

Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
Create hunting rule

YARA.SECUINFRA_SUSP_Netsh_Firewall_Command.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69ddaee245787c53e5397882
Tags:
bladabindi autorun njrat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Searching for synchronization primitives
Сreating synchronization primitives
Creating a window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm autorun base64 bladabindi cmd config-extracted evasive explorer fingerprint krypt lolbin msconfig netsh njrat njrat obfuscated rat reconnaissance rundll32 schtasks stealer unsafe update vbnet windows winnti
Link:
https://www.filescan.io/uploads/69ddb4f5799d5bf325fcd4cb/reports/94a2f1d5-307b-41cc-85f2-fe68c827de86/overview
Verdict:
Malicious
Labled as:
Trojan[Backdoor]/MSIL.Bladabindi
Link:
https://www.hybrid-analysis.com/sample/b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-14T00:08:00Z UTC
Last seen:
2026-04-14T17:02:00Z UTC
Hits:
~10
Detections:
Backdoor.MSIL.SpyGate.sb Backdoor.MSIL.Bladabindi.sb PDM:Trojan.Win32.Generic Backdoor.SpyGate.TCP.C&C Backdoor.Bladabindi.TCP.C&C HEUR:Backdoor.MSIL.SpyGate.gen Backdoor.Agent.TCP.C&C Trojan.MSIL.Disfa HEUR:Trojan.Win32.Generic HEUR:Trojan.Win32.Agent.gen HEUR:Trojan.MSIL.Crypt.gen HEUR:Backdoor.MSIL.Bladabindi.gen
Link:
https://opentip.kaspersky.com/b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937/results?tab=lookup
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0c8202b9-b382-4eeb-891d-fa8b2512ea31
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.phis.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1897777
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to disable the Task Manager (.Net Source)
Contains functionality to spread to USB devices (.Net source)
Disables zone checking for all users
Drops PE files to the startup folder
Found malware configuration
Joe Sandbox ML detected suspicious 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
Suricata IDS alerts for network traffic
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1897777 Sample: Server.exe Startdate: 14/04/2026 Architecture: WINDOWS Score: 100 35 subscript-breadth.with.playit.plus 2->35 39 Suricata IDS alerts for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 9 other signatures 2->45 8 Server.exe 1 15 2->8         started        13 Microsoft Corporation.exe 5 2->13         started        signatures3 process4 dnsIp5 37 subscript-breadth.with.playit.plus 209.25.141.27, 1073, 49719, 49726 COGECO-PEER1CA Canada 8->37 27 C:\system.exe, PE32 8->27 dropped 29 C:\Users\user\...\Microsoft Corporation.exe, PE32 8->29 dropped 31 74b043bc5b3b520ee1...3Windows Update.exe, PE32 8->31 dropped 33 3 other malicious files 8->33 dropped 47 Disables zone checking for all users 8->47 49 Drops PE files to the startup folder 8->49 51 Uses netsh to modify the Windows network and firewall settings 8->51 53 Modifies the windows firewall 8->53 15 netsh.exe 2 8->15         started        17 netsh.exe 2 8->17         started        19 netsh.exe 2 8->19         started        file6 signatures7 process8 process9 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937
Gathering data
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937/
Verdict:
Malicious
Threat:
Family.NJRAT
Link:
https://tip.neiki.dev/file/b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937
Threat name:
ByteCode-MSIL.Backdoor.NjRAT
Create hunting rule
Status:
Malicious
First seen:
2026-04-14 03:05:13 UTC
File Type:
PE (.Net Exe)
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd42zx5zd56jvtp5cmp5buxuarunirfzsmsv4mm6llccslhlbe3q._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
0142c994af88662c8ad2dfcb4ad352dd44693c48a097239ec5ccdf4f87138cef
njrat
31969eac0dfce98123ec54c284d3e895242342f623d80aa9ed94f562c7918454
njrat
429d1b3aceea5a9761994ffe3171e27572b82f6ff372c690b683acd812d604e3
njrat
b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937
njrat
e4d13cb5c3dcb794f7464ae665fafa2390107672417b8203432a6646344e3895
njrat
error
njrat
+ 635 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked defense_evasion discovery persistence privilege_escalation trojan
Link:
https://tria.ge/reports/260414-d21s4aex4x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Drops startup file
Modifies Windows Firewall
Malware Config
C2 Extraction:
hakim32.ddns.net:2000
subscript-breadth.with.playit.plus:1073
Unpacked files
SH256 hash:
b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937
MD5 hash:
e88715ec4a65e76862ee9d7039a53bca
SHA1 hash:
0c14b86074caef354112cc2f6b179e6fb9335257
Link:
https://www.unpac.me/results/2079f434-82ea-4b6e-9e85-f56436120fc4/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b8f9acdfb91f/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/b8f9acdfb91f7c9acdfd131fd0d2f40468d444b993255e319e5ac4292ceb0937

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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
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:Mal_WIN_NjRAT_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect NjRAT implant.
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:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
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: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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Njrat_eb2698d2
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_strings_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/61463/

Comments