MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754. 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

QuasarRAT

Vendor detections: 17

Intelligence 17 IOCs YARA 36 File information Comments

SHA256 hash:	85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754
SHA3-384 hash:	83b449427bc1aaf8754046773f4696b226b4c1956564e01e0f29858e5fd00e9480385022ab6acc914ff297a90db4e748
SHA1 hash:	ae4066094de9205aace581a4a68cdc59822045aa
MD5 hash:	9b13b6e400a8ddd9fb6d8c9f1aa75b11
humanhash:	aspen-fruit-missouri-lamp
File name:	85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	1'953'792 bytes
First seen:	2026-10-14 16:11:51 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'272 x AgentTesla, 20'616 x Formbook, 12'394 x SnakeKeylogger)
ssdeep	49152:l2WEu7rRFirm+Nn42KK8i7Ltwa+VVaSz:l2WEwavNnoK8i7LtwbHJz
TLSH	T1A095F150B3F68106F1BF2BB9A8B304490B77BA029A3AC35F499C906D1FA3751DE51367
TrID	59.5% (.RLL) Microsoft Resource Library (x86) (177572/6/26) 24.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 5.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 2.1% (.EXE) Win64 Executable (generic) (6522/11/2)
Magika	pebin
dhash icon	a46968f0f0e85192 (1 x QuasarRAT)
Reporter	ShadowOpCode
Tags:	exe QuasarRAT RGBLoader

Intelligence

File Origin

# of uploads :

# of downloads :

170

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

QuasarRAT

Details

Link:

https://research.acce.ciphertechsolutions.com/results/3372720d-0cef-4b65-9b03-17cb7006f571/

Malware family:

n/a

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-10-14 19:01:59 UTC

Tags:

pulsar rat

Link:

https://app.any.run/tasks/8edd36be-5086-4b02-af22-bddbd08d117e

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/91967/

Detection(s):

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Win.Malware.Bulz-9933026-0

Win.Malware.Generic-6623004-0

Win.Malware.Generic-9883083-0

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad175cff4e17c78f71600fc

Tags:

vmdetect quasar emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating synchronization primitives

Connection attempt

Launching a service

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm anti-vm base64 cmd entropy explorer fingerprint hacktool lolbin obfuscated packed privilege pulsar quasarrat reconnaissance runonce update

Link:

https://www.filescan.io/uploads/6acfa9edcfe76c90d423cf27/reports/84c30bd8-cb68-4097-9a30-6afaa3eec1b3/overview

Verdict:

Malicious

Labled as:

Backdoor_Win32_PulsarRat_AR_AMTB

Link:

https://www.hybrid-analysis.com/sample/85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-10-10T10:44:00Z UTC

Last seen:

2026-10-16T00:25:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/4bc410d9-3a92-4177-8f85-1b4bc76a3a22

Score:

97%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754/

Threat name:

Win32.Trojan.Pulsar

Status:

Malicious

First seen:

2026-10-10 15:09:50 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=qx3uxnm6vdjgj7szdiuicrrfe2kwjjtg4vvxmr6hygfiykr7g5ka._file

Verdict:

malicious

Label(s):

QuasarRAT

Link:

https://reports.threatray.com/56434379-fef2-46b4-a3ef-f4f764cf054d

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office04 module rat spyware trojan

Link:

https://tria.ge/reports/261014-tnqc7sfw2w/

Behaviour

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Family: Quasar RAT

PulsaRAT library module

Quasar payload

Malware Config

C2 Extraction:

192.168.1.158:1877

Unpacked files

SH256 hash:

85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754

MD5 hash:

9b13b6e400a8ddd9fb6d8c9f1aa75b11

SHA1 hash:

ae4066094de9205aace581a4a68cdc59822045aa

Detections:

QuasarRAT

cn_utf8_windows_terminal

INDICATOR_EXE_Packed_Fody

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

MAL_BackNet_Nov18_1

MAL_QuasarRAT_May19_1

malware_windows_xrat_quasarrat

Link:

https://www.unpac.me/results/133a8b8c-200c-414e-b979-3ea28692aa27/

Malware family:

PulsarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/85f74bb59ea8/report/overview.html

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

Threat name:

iSpy Keylogger

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/85f74bb59ea8d264fe591a28814625269564a666e56b7647c7c18a8c2a3f3754

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:	Costura_Protobuf Create hunting rule
Author:	@bartblaze
Description:	Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.

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:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

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:	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:	MAL_QuasarRAT_May19_1 Create hunting rule
Description:	Detects QuasarRAT malware

Rule name:	MAL_QuasarRAT_May19_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects QuasarRAT malware
Reference:	https://blog.ensilo.com/uncovering-new-activity-by-apt10

Rule name:	MAL_QuasarRAT_May19_1_RID2E1E Create hunting rule
Author:	Florian Roth
Description:	Detects QuasarRAT malware
Reference:	https://blog.ensilo.com/uncovering-new-activity-by-apt10

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

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:	telebot_framework Create hunting rule
Author:	vietdx.mb

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_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/91967/

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