MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203. 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: 19

Intelligence 19 IOCs YARA 34 File information Comments 1

SHA256 hash:	67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203
SHA3-384 hash:	2623cdbf92e2b82e86ac63ccd671f0362c69230302114c52306cccd6aa2db5c481e4fc334a9a52e9899ff6f5a8e67d5c
SHA1 hash:	1a243318696ae453ffc4660deceb5f307c440c59
MD5 hash:	272a26b6a6d4da9123afcb8dfac01267
humanhash:	alanine-apart-emma-sodium
File name:	Client-built.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	356'352 bytes
First seen:	2026-04-02 07:54:15 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'991 x AgentTesla, 19'899 x Formbook, 12'331 x SnakeKeylogger)
ssdeep	6144:22NHXf500MxSKqs+voSbdFjhfHb45bjq:dd50KKqkuFj9Hb45bjq
Threatray	773 similar samples on MalwareBazaar
TLSH	T1A7749D5373A8D93BD1FE1B3AE43A16154BB1D443BB1AE38B5A1855B93C133868D903B3
TrID	60.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 13.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 5.4% (.EXE) Win64 Executable (generic) (6522/11/2) 4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
Reporter	Anonymous
Tags:	exe QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

174

Origin country :

Vendor Threat Intelligence

Gathering data

Malware family:

quasar

ID:

File name:

Client-built.exe

Verdict:

Malicious activity

Analysis date:

2026-04-02 07:57:35 UTC

Tags:

quasar rat evasion

Link:

https://app.any.run/tasks/a7882160-46bc-4a97-8196-aa351ffb71c7

Note:

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

Detection:

QuasarRAT

Link:

https://www.capesandbox.com/analysis/60173/

Detection(s):

Win.Packed.Generic-9829635-0

Win.Trojan.Generic-9829636-0

Win.Packed.Generic-9830106-0

Win.Packed.QuasarRAT-10012744-0

Win.Trojan.Generic-6295765-0

Win.Malware.Generic-6623004-0

YARA.CAPE_Quasarrat.UNOFFICIAL

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL

Gathering data

Result

Verdict:

Malware

Maliciousness:

Behaviour

Using the Windows Management Instrumentation requests

Сreating synchronization primitives

DNS request

Connection attempt

Sending an HTTP GET request

Setting a keyboard event handler

Creating a file in the %AppData% subdirectories

Creating a window

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 byteguard emotet fingerprint infostealer keylogger lolbin obfuscated obfuscated packed quasar quasarrat rat reconnaissance runonce schtasks soft-404 stealer stealer unsafe vbnet vermin windows xrat

Link:

https://www.filescan.io/uploads/69ce20e9e2df9aa488c36657/reports/f876b225-cdc5-42d6-ba94-131763fcf85f/overview

Verdict:

Malicious

Labled as:

MSIL.PasswordStealerA.Generic

Link:

https://www.hybrid-analysis.com/sample/67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-05-30T07:32:00Z UTC

Last seen:

2025-05-31T10:48:00Z UTC

Hits:

~10

Detections:

Trojan.MSIL.Agent.sb Backdoor.NanoBot.TCP.C&C Trojan.MSIL.Quasar.sb Trojan.Win32.Quasar.sb Trojan.MSIL.Agent.foww Trojan-Spy.MSIL.Downeks.sb Trojan.MSIL.Quasar.b Trojan-Spy.Quasar.HTTP.ServerRequest Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Virinom.sb HEUR:Trojan-Spy.MSIL.Downeks.gen HEUR:Trojan-Spy.MSIL.Agent.sb PDM:Trojan.Win32.Generic Trojan.MSIL.Quasar.a HEUR:Trojan.Win32.Generic HEUR:Trojan.MSIL.Quasar.gen

Link:

https://opentip.kaspersky.com/67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/26587e86-54d3-43e7-ab2e-9b4c65f277d2

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203

Verdict:

QuasarRat

YARA:

16 match(es)

Tags:

.Net Executable Malicious Managed .NET PE (Portable Executable) PE File Layout QuasarRat RAT Win 32 Exe x86

Malware Config

C2 Extraction:

PORT: 1604
CNC: 92.249.61.91

Link:

https://app.malva.re/file/272a26b6a6d4da9123afcb8dfac01267

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203/

Verdict:

Malicious

Threat:

Family.QUASARRAT

Link:

https://tip.neiki.dev/file/67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2025-05-31 16:30:00 UTC

AV detection:

23 of 24 (95.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=m74nicl6wksssrjgywmr5rwaegxfyizjfpxckjs4uzrc4np7wibq._file

Verdict:

malicious

Label(s):

quasarrat

QuasarRAT

3240ba805b47c8113426171d02796e776b782cbd76560c024cbea07fbe519d7d

QuasarRAT

3f7c3e6ad47622eb559c923c12fe588fe4bf14bff307fafbcfc1b1fb08f64457

QuasarRAT

8a54d056aeda3294b96434794bfc06246f4d88585773b0da3fdd1aebdae80da4

QuasarRAT

e61ed0d2ac83d2875180b1a33e04834aa6ca7dba7a5663e8d6e65a4482537576

QuasarRAT

+ 763 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office04 discovery spyware trojan

Link:

https://tria.ge/reports/260402-jsahfaht2y/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

System Location Discovery: System Language Discovery

Looks up external IP address via web service

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

92.249.61.91:1604

Unpacked files

SH256 hash:

67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203

MD5 hash:

272a26b6a6d4da9123afcb8dfac01267

SHA1 hash:

1a243318696ae453ffc4660deceb5f307c440c59

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/d43be4b4-df1e-4677-934a-91fa610bcf82/

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/67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203

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_KeyLogger_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects malware from disclosed CN malware set
Reference:	https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details

Rule name:	CN_disclosed_20180208_KeyLogger_1_RID3227 Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details

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

Rule name:	INDICATOR_SUSPICIOUS_GENInfoStealer Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing common artifacts observed in infostealers

Rule name:	malware_Quasar_strings Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect QuasarRAT in memory

Rule name:	MALWARE_Win_QuasarRAT Create hunting rule
Author:	ditekSHen
Description:	QuasarRAT payload

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:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	Quasar Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect QuasarRAT in memory

Rule name:	QuasarRAT Create hunting rule
Author:	ditekshen
Description:	QuasarRAT payload

Rule name:	quasarrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	quasarrat_kingrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	Quasar_RAT_1 Create hunting rule
Author:	@SOCRadar
Description:	Detects Quasar RAT

Rule name:	Quasar_RAT_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Quasar RAT
Reference:	https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

Rule name:	Quasar_RAT_1_RID2B54 Create hunting rule
Author:	Florian Roth
Description:	Detects Quasar RAT
Reference:	https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

Rule name:	Quasar_RAT_2 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Quasar RAT
Reference:	https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

Rule name:	Quasar_RAT_2 Create hunting rule
Description:	Detects Quasar RAT

Rule name:	Quasar_RAT_2_RID2B55 Create hunting rule
Author:	Florian Roth
Description:	Detects Quasar RAT
Reference:	https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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/

Rule name:	Windows_Trojan_Quasarrat_e52df647 Create hunting rule
Author:	Elastic Security

Rule name:	win_quasar_rat_client Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in Quasar Rat Samples.

Rule name:	xRAT_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Patchwork malware
Reference:	https://goo.gl/Pg3P4W

Rule name:	xRAT_1_RID2900 Create hunting rule
Author:	Florian Roth
Description:	Detects Patchwork malware
Reference:	https://goo.gl/Pg3P4W

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/60173/

Comments

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commented on 2026-04-02 07:56:29 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "67f8d4097eb2a5294526c5991ec6c021ae5c23292bee25265ca6622e35ffb203",
"yara_possible_family": "quasarrat",
"key": "291121599f24a7ec703addc24f6f7c30",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"obfuscated_key_1": "1.3.0.0",
"obfuscated_key_2": "92.249.61.91:1604;",
"obfuscated_key_3": 3000,
"obfuscated_key_4": "1WvgEMPjdwfqIMeM9MclyQ==",
"obfuscated_key_5": "NcFtjbDOcsw7Evd3coMC0y4koy/SRZGydhNmno81ZOWOvdfg7sv0Cj5ad2ROUfX4QMscAIjYJdjrrs41+qcQwg==",
"obfuscated_key_6": "APPLICATIONDATA",
"obfuscated_key_7": "SubDir",
"obfuscated_key_8": "Client.exe",
"obfuscated_key_9": false,
"obfuscated_key_10": false,
"obfuscated_key_11": "QSR_MUTEX_CSxwF4QUvoaAJ2vYyN",
"obfuscated_key_12": "Quasar Client Startup",
"obfuscated_key_13": false,
"obfuscated_key_14": true,
"obfuscated_key_15": "kNMp1tOqAZrIdufIXsbP",
"obfuscated_key_16": "Office04",
"obfuscated_key_17": "Logs",
"obfuscated_key_18": false,
"obfuscated_key_19": false
}
}