MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba. 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 YARA 35 File information Comments

SHA256 hash:	5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba
SHA3-384 hash:	e6b1d90502f4972eece1d9aad23ac28dad802b832a26d78a474c9b72b9029b0f6d34f389fa6c4fa8f81af2a10351493e
SHA1 hash:	930ed01e1089890f51f6fd69c8c0a9eca19b4903
MD5 hash:	dfc9fd54653f5b3aaba5f43851da022b
humanhash:	nine-pip-fourteen-paris
File name:	5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	985'616 bytes
First seen:	2026-10-14 16:06:01 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'287 x AgentTesla, 20'697 x Formbook, 12'401 x SnakeKeylogger)
ssdeep	24576:eF/pW70P9MNWLuyWh0ZBngGaTd9rrUPGp:eF/pu01MtyWh0ZBnjaTrrQc
TLSH	T1E025CF9177F48607E1FF2A75F4B249594BBBB4129936DB4F08C890AD0EB37818E507A3
TrID	63.0% (.RLL) Microsoft Resource Library (x86) (177572/6/26) 25.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 2.3% (.EXE) Win64 Executable (generic) (6522/11/2) 1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
Reporter	ShadowOpCode
Tags:	exe NjRAT RGBLoader

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

QuasarRAT

Details

Link:

https://research.acce.ciphertechsolutions.com/results/9bd7705b-40ca-498c-bc71-5ad8f36a6f17/

Malware family:

agenttesla

ID:

File name:

https://temp.sh/HVmiT/RGBLoader.zip

Verdict:

Malicious activity

Analysis date:

2026-10-14 15:16:47 UTC

Tags:

rat pulsar netreactor ip-check evasion stealer agenttesla ftp exfiltration uac xworm screenconnect rmm-tool smtp ultravnc telegram snake keylogger

Link:

https://app.any.run/tasks/4e9aec16-036a-4d91-93e0-a1a6602cbb3d

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/91922/

Detection(s):

Win.Malware.Bulz-9933026-0

Win.Malware.Generic-6623004-0

Win.Malware.Generic-9883083-0

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad16ce46f551121ba166525

Tags:

vmdetect autorun emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating synchronization primitives

Creating a file in the %AppData% subdirectories

Launching a process

Enabling the 'hidden' option for recently created files

Creating a process from a recently created file

Creating a file

Connection attempt

Sending a custom TCP request

Launching a service

Unauthorized injection to a recently created process

Enabling autorun by creating a file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-vm base64 hacktool obfuscated overlay packed privilege reconnaissance stack_pickle

Link:

https://www.filescan.io/uploads/6acfa8836f2a1f7b50d559e0/reports/135b692a-c255-437f-8669-37d98f0366bc/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-10-12T07:27:00Z UTC

Last seen:

2026-10-14T15:54:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/0b0f788d-e760-4bf9-841a-b924545afb53

Score:

94%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba/

Threat name:

ByteCode-MSIL.Trojan.Pulsar

Status:

Malicious

First seen:

2026-10-12 11:53:34 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 23 (95.65%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=le43xdwj52ags24pwk7q2xjag3afvo4uljcqz27526wuddfm6c5a._file

Verdict:

malicious

Label(s):

QuasarRAT

Link:

https://reports.threatray.com/0109bb47-6b97-4fa1-8771-12e8a66aff6b

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar defense_evasion execution module persistence rat spyware trojan

Link:

https://tria.ge/reports/261014-tka44sfv5y/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Executes a file named after a Windows system binary

Executes dropped EXE

Family: Quasar RAT

PulsaRAT library module

Quasar payload

Unpacked files

SH256 hash:

5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba

MD5 hash:

dfc9fd54653f5b3aaba5f43851da022b

SHA1 hash:

930ed01e1089890f51f6fd69c8c0a9eca19b4903

Detections:

QuasarRAT

cn_utf8_windows_terminal

INDICATOR_EXE_Packed_Fody

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

MAL_BackNet_Nov18_1

malware_windows_xrat_quasarrat

Link:

https://www.unpac.me/results/d22907ba-5352-4725-a93f-e924325d1457/

Malware family:

PulsarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/5939bb8ec9ee/report/overview.html

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

Threat name:

Malicious File

Score:

0.77

Link:

https://yomi.yoroi.company/submissions/5939bb8ec9ee80696b8fb2bf0d5d2036c05abb945a450cebfdd7ad418cacf0ba

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:	Check_Dlls Create hunting rule

Rule name:	Check_VBox_Guest_Additions Create hunting rule

Rule name:	Check_VmTools Create hunting rule

Rule name:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

Rule name:	DotNet_RGB_Embedded_AssemblyLoader_Hunt Create hunting rule
Author:	ShadowOpCode
Description:	Hunt .NET bitmap RGB extraction combined with embedded resources and assembly loading

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	hunting_generic_win_rat Create hunting rule
Author:	Ajin Deepak, AD2001
Description:	Hunting RATS based on common patterns

Rule name:	HUNT_NET_Loader_ImagePixel_To_AssemblyLoad Create hunting rule
Author:	Anish Bogati
Description:	Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.

Rule name:	INDICATOR_EXE_Packed_Fody Create hunting rule
Author:	ditekSHen
Description:	Detects executables manipulated with Fody

Rule name:	Indicator_MiniDumpWriteDump Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references

Rule name:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Rule name:	Malware_PE_NET_KoiLoader Create hunting rule
Author:	Serhii Kocherhan
Description:	Detects Koi Loader .NET executables packed with Confuser featuring specific mutex, assembly metadata, and unmanaged DLL imports

Rule name:	MAL_BackNet_Nov18_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects BackNet samples
Reference:	https://github.com/valsov/BackNet

Rule name:	MAL_BackNet_Nov18_1_RID2D6D Create hunting rule
Author:	Florian Roth
Description:	Detects BackNet samples
Reference:	https://github.com/valsov/BackNet

Rule name:	NET 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:	Pulsar_RAT Create hunting rule
Author:	@bartblaze
Description:	Identifies Pulsar RAT, based on Quasar RAT.
Reference:	https://malpedia.caad.fkie.fraunhofer.de/details/win.pulsar_rat

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_Script_PowerShell_Hidden_Launcher Create hunting rule
Author:	Marjoriefort
Description:	Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:	Veille fraicheur 2026-09-14 / cluster misses web

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:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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:	WIN_Malware_SalatStealer_ForgeAuto_542e717b Create hunting rule
Author:	Marjoriefort
Description:	Detects SalatStealer (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_2ffc3572 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_6717780a_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat extrait)

Rule name:	WIN_Malware_Unknown_ForgeAuto_ce8c5b46 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects XWorm (pe, etat extrait)

File information

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

Cape

https://www.capesandbox.com/analysis/91922/

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