MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f. 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 17 File information Comments

SHA256 hash:	d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f
SHA3-384 hash:	cedb6d1d4388f0891c5e047d8c7770b21266e2483de5608b66aa7d5591811b1ed48c5d86f6923c90c255bc480ce4ca4e
SHA1 hash:	40119679656c380d56f506ac996169997edfc5e3
MD5 hash:	21e4e8d85bbd1b4a495a67b25c28b621
humanhash:	kansas-batman-oscar-fruit
File name:	file
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	646'656 bytes
First seen:	2026-03-13 14:36:20 UTC
Last seen:	2026-03-13 14:50:54 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'844 x AgentTesla, 19'775 x Formbook, 12'297 x SnakeKeylogger)
ssdeep	12288:UPRb9zoSjkqjVnl36ud0zR/6CtQ9PUHIG8Dl8gSD+37PWY1Y1+f7LfNEXQnYrQ:UJ9pjkqjVnlqud+/2P+AlUDcPt1aKFE0
Threatray	15 similar samples on MalwareBazaar
TLSH	T1C4D4022037FC860BE1BF66B998B125416676F663F623EB5C0C8462ED4533741A9C337A
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	Bitsight
Tags:	dropped-by-amadey exe fbf543 QuasarRAT

Bitsight

url: http://158.94.208.7/files/8635093259/TUzr0QP.exe

Intelligence

File Origin

# of uploads :

# of downloads :

199

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

QuasarRAT

Details

QuasarRAT

c2 socket addresses, a version, a mutex, AES-CBC decryption parameters, a missionid, an interval, varying flags, a filepath, an installation registry path and scheduled task name, and possibly additional parameters which vary per version

Link:

https://research.acce.ciphertechsolutions.com/results/d79493e1-88c2-4346-a533-f5af0cfadb51/

Malware family:

quasar

ID:

File name:

file

Verdict:

Malicious activity

Analysis date:

2026-03-13 14:37:09 UTC

Tags:

auto-reg evasion quasar

Link:

https://app.any.run/tasks/5cb1df6f-90b4-4b85-b077-9d3dc14f62cc

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/57306/

Detection(s):

SecuriteInfo.com.BackDoor.QuasarNET.3.15799.9718.UNOFFICIAL

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69b4211b93b644ca4669a898

Tags:

autorun quasar

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 downeks fingerprint keylogger lolbin obfuscated obfuscated packed quasar quasarrat reconnaissance runonce schtasks stack_pickle vermin

Link:

https://www.filescan.io/uploads/69b4211a2000fc76c3da82fd/reports/8f469ae9-e10e-414a-a5a8-fc93a6fc9e01/overview

Verdict:

Malicious

Labled as:

IL:Trojan.MSILZilla

Link:

https://www.hybrid-analysis.com/sample/d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f

Verdict:

Malicious

File Type:

exe x32

Detections:

Trojan.MSIL.Quasar.a HEUR:Trojan.MSIL.Quasar.gen Trojan.Win32.Quasar.sb NetTool.TunnelLocaltonet.UDP.C&C

Link:

https://opentip.kaspersky.com/d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f422890f-cafd-4ea4-a232-3a53c3b379d8

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f/

Verdict:

Malicious

Threat:

Family.QUASARRAT

Link:

https://tip.neiki.dev/file/d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2026-03-13 14:37:18 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

15 of 23 (65.22%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=24plwjj5i62pmjwqhwx2muezdenlnwjzy3aqx2d3f7473rz7qz7q._file

Verdict:

malicious

Label(s):

quasarrat

QuasarRAT

32855d78f2bb5b72b9ea1a9284a04e52bdd3778fcf4e23eb6229356b9f158c10

QuasarRAT

8852ef713bc0078d9ae391ceb5b2d5b4901dd63ab2a74a5155f9d0416a033718

QuasarRAT

940773be1f5061eb206c7bbf3030765aac7b973f5a9915c62ba893a2d97b28f2

QuasarRAT

a342889b6129444756d089aacbd647b1fcb0273ed5894885e1641038a001a2d7

QuasarRAT

d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f

QuasarRAT

error

QuasarRAT

+ 5 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar execution persistence spyware trojan

Link:

https://tria.ge/reports/260313-ry87ysbs3v/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Quasar RAT

Quasar family

Quasar payload

Unpacked files

SH256 hash:

d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f

MD5 hash:

21e4e8d85bbd1b4a495a67b25c28b621

SHA1 hash:

40119679656c380d56f506ac996169997edfc5e3

Link:

https://www.unpac.me/results/04e375c2-2e51-477f-b45e-47bd4489773f/

SH256 hash:

a67a424013544c8270c12633e2e1e287cd5cf0b3f2e81e8d8204b37a03da59ef

MD5 hash:

bfb3bd1cb571360435100bfa6ed2b997

SHA1 hash:

1325e8dd76180a165117e04da4ee4a020e996880

Link:

https://www.unpac.me/results/04e375c2-2e51-477f-b45e-47bd4489773f/

SH256 hash:

cfeec75a0aad3efbd553d9d1f67b71b3de7ec9788629d73ce696bdaadd26554c

MD5 hash:

a636c6244c3193bb4cd596606e4937ad

SHA1 hash:

785c9bd21aefde156d5dc744c0aa577315fea5bf

Detections:

SUSP_NET_Large_Static_Array_In_Small_File_Jan24

Link:

https://www.unpac.me/results/04e375c2-2e51-477f-b45e-47bd4489773f/

Parent samples :

a342889b6129444756d089aacbd647b1fcb0273ed5894885e1641038a001a2d7
b9b51e29d004739a401a3628bd5b48cccb9bfa5bbc67dbacd3be197a5be32285
940773be1f5061eb206c7bbf3030765aac7b973f5a9915c62ba893a2d97b28f2
d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f
102b0010ff82572936b26dda6f3f9c13d61386f653c1759036b3d5258ad086ec

SH256 hash:

f61b0bbe7ec4ebdedaa98aa5c4f740cc08003436e00d8dfdede0b54bdc5c3e6c

MD5 hash:

022405b85fb3abbea773ac4f7b65f1ec

SHA1 hash:

ba11ebe0cf87523a32067c687790be78a3e6af0c

Link:

https://www.unpac.me/results/04e375c2-2e51-477f-b45e-47bd4489773f/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/d71ebb253d47/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/d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f

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

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

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

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
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 Create hunting rule
Description:	Detects QuasarRAT malware

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:	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:	NET Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	quasarrat Create hunting rule
Author:	jeFF0Falltrades

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

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:	Vermin_Keylogger_Jan18_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Vermin Keylogger
Reference:	https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/

File information

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

Web download

QuasarRAT

exe d71ebb253d47b4f626d03dafa65099191ab6d939c6c10be87b2ff9fdc73f867f

(this sample)

Dropped by

Amadey

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/57306/

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