MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11. 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: 20


Intelligence 20 IOCs 1 YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11
SHA3-384 hash: ee199c8f0da82a42453f536596cb6c9f119f5079ac3b197580db6f6d5f8606335446d7682693781c011608ef95db76e0
SHA1 hash: 9f8b7682428bab8773e20d63a62ff2be03bc97ec
MD5 hash: 77fd461671e836a6ff77f991cfcb394a
humanhash: don-timing-mike-helium
File name:EXERESX0.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2025-08-10 23:20:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 384:qGOIiu/jtD+P3V+y0bFwRktv7ms2cPmrAF+rMRTyN/0L+EcoinblneHQM3epzXkw:TXmV10bFwRktalcOrM+rMRa8NumPYt
Threatray 1'347 similar samples on MalwareBazaar
TLSH T18D033A4D7FE18168D5FD067B05B2D01207BAE04B6E23DE1E8EE164AA37636C1CB50AF1
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
194.5.65.9:8080

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
194.5.65.9:8080 https://threatfox.abuse.ch/ioc/1567155/

Intelligence

File Origin
# of uploads :
1
# of downloads :
111
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
EXERESX0.exe
Verdict:
Malicious activity
Analysis date:
2025-08-10 23:22:52 UTC
Tags:
rat njrat bladabindi auto-reg auto-startup remote backdoor
Link:
https://app.any.run/tasks/9f4b13b6-8e19-4446-a795-e6718bac356d

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/20007/
Detection(s):
Sanesecurity.Malware.29039.UNOFFICIAL
Create hunting rule

Win.Packed.Bladabindi-7994427-0
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=68992948c633abe3908da9a4
Tags:
bladabindi crimsonrat 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:
base64 cmd explorer fingerprint lolbin netsh njrat njrat rat reconnaissance vbnet windows
Link:
https://www.filescan.io/uploads/689929469ef4d2ff7cf5071d/reports/ae356996-7a60-432b-92ef-c779fb560911/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a726c8c9-3dc3-4f1c-92c1-885bcc252180
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1754170
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 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
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
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
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 signatures2 2 Behavior Graph ID: 1754170 Sample: EXERESX0.exe Startdate: 11/08/2025 Architecture: WINDOWS Score: 100 46 Suricata IDS alerts for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 12 other signatures 2->52 8 EXERESX0.exe 1 6 2->8         started        11 system32.exe 3 2->11         started        13 system32.exe 2 2->13         started        15 system32.exe 2 2->15         started        process3 file4 38 C:\ProgramData\system32.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\...XERESX0.exe.log, ASCII 8->40 dropped 42 C:\ProgramData\system32.exe:Zone.Identifier, ASCII 8->42 dropped 17 system32.exe 2 11 8->17         started        process5 dnsIp6 44 194.5.65.9, 49721, 49722, 8080 RACKMARKTES Spain 17->44 30 C:\svchost.exe, PE32 17->30 dropped 32 C:\...\93b51036d4337ec738b89226dca82525.exe, PE32 17->32 dropped 34 C:\svchost.exe:Zone.Identifier, ASCII 17->34 dropped 36 2 other malicious files 17->36 dropped 54 Antivirus detection for dropped file 17->54 56 Multi AV Scanner detection for dropped file 17->56 58 Protects its processes via BreakOnTermination flag 17->58 60 6 other signatures 17->60 22 taskkill.exe 1 17->22         started        24 netsh.exe 2 17->24         started        file7 signatures8 process9 process10 26 conhost.exe 22->26         started        28 conhost.exe 24->28         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11
Verdict:
njRat
YARA:
14 match(es)
Tags:
.Net Executable njRat PE (Portable Executable) RAT SOS: 0.25 Win 32 Exe x86
Malware Config
C2 Extraction:
CNC: 194.5.65.9
PORT: 8080
Link:
https://app.malva.re/file/77fd461671e836a6ff77f991cfcb394a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2025-08-10 23:08:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ihfdyld2khlvgnxakomd2ulu4uart3y6vc2nflj3onqwxhs7zyiq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
12b8b546038907862b15e79f5cb0fcc2c49fb9240323dd27b48d87309952c134
njrat
2a1837f12707bb0c3cb62653750004640a029833f7d7790f1d4ce79507a0dd16
njrat
41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11
njrat
6351577adc7052cc74c414372305602d829c52dcacce43562021248606272c59
njrat
897ff7376c4049999dc65b3853a3c0d4f9d148ba59ec798e924a439e795a6014
njrat
c23c9c58829edc73466c7c9a58e14c97c9a6082feebffab89a0d3cef8cb5297e
njrat
e5cf853398bcdd00fa6925a007cb7683e61d35c11ec641da44c419fd66d66dab
njrat
error
njrat
+ 1'337 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
Link:
https://tria.ge/reports/250810-3bqb4scp91/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Drops autorun.inf file
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
Modifies Windows Firewall
Malware Config
C2 Extraction:
194.5.65.9:8080
Verdict:
Malicious
Tags:
rat njrat Win.Packed.Bladabindi-7994427-0 Bladabindi
YARA:
ByteCode_MSIL_Backdoor_NjRAT MALWARE_Win_NjRAT Windows_Trojan_Njrat_30f3c220
Link:
https://app.threat.zone/submission/84d008a4-b671-40c5-aa55-fbacc2145032
Unpacked files
SH256 hash:
41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11
MD5 hash:
77fd461671e836a6ff77f991cfcb394a
SHA1 hash:
9f8b7682428bab8773e20d63a62ff2be03bc97ec
Detections:
win_njrat_g1
Create hunting rule
win_njrat_w1
Create hunting rule
NjRat
Create hunting rule
MALWARE_Win_NjRAT
Create hunting rule
Link:
https://www.unpac.me/results/918c377c-1bd8-4b03-93cd-1064b36c82fd/
Parent samples :
924a1f82d9119bdfe5cbb6a3eb843596869cf5f83740c631f4f373203156a363
41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/41ca3c2c7a51/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/41ca3c2c7a51d75336e053983d5174e50119ef1ea8b4d2ad3b73616b9e5fce11

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:ByteCode_MSIL_Backdoor_NjRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects NjRAT backdoor.
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_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:njrat_
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked njrat malware samples.
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: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: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.

Cape
Cape
https://www.capesandbox.com/analysis/20007/

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