MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454. 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 20 File information Comments

SHA256 hash:	b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454
SHA3-384 hash:	346dd02a6a52fe5e455800462f0faa434dea3682595c6ff8362c81cc724b310807811d2166a0b079fadcfe152fb0f3a2
SHA1 hash:	6964aa452b03fc3ac120bf803fb5427363671b01
MD5 hash:	00e0bbfc05f490c4857ae89ec7915391
humanhash:	three-wyoming-fifteen-burger
File name:	xoilaczvvz.tv_32212fe0_unikey.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	139'264 bytes
First seen:	2026-05-22 02:38:13 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'115 x AgentTesla, 20'117 x Formbook, 12'357 x SnakeKeylogger)
ssdeep	3072:3HAL5stwS3AVJN/tBCCnZpbXGmr6BMfWTk9:+sIJV5ZpbXd0U
Threatray	1'186 similar samples on MalwareBazaar
TLSH	T150D3391437ECCA17E2BE6BB9EC7840010772E617E567E78D9D8C24DD2A627D291813B3
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	mgoku
Tags:	QuasarRAT

Intelligence

File Origin

# of uploads :

# of downloads :

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/68b4ee88-49b9-4eea-b8d0-fe90fdfb150a/

Malware family:

n/a

ID:

File name:

xoilaczvvz.tv_32212fe0_unikey.exe

Verdict:

No threats detected

Analysis date:

2026-05-22 02:40:45 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/1c05ad53-d37d-4fe5-bd78-3b7379dccc61

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/67483/

Detection(s):

Win.Malware.Generic-9883083-0

Win.Malware.Bulz-9933026-0

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

YARA.DITEKSHEN_MALWARE_Win_Quasarstealer.UNOFFICIAL

YARA.SIGNATURE_BASE_MAL_Quasarrat_May19_1.UNOFFICIAL

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a0fc1ba33e785de369ca034

Tags:

infosteal quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a file

Query of malicious DNS domain

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 explorer fingerprint infostealer keylogger lolbin reconnaissance runonce schtasks stealer

Link:

https://www.filescan.io/uploads/6a0fcb07056ea44c4537d4fd/reports/794055a6-fac4-4cdd-8324-69e33b84512e/overview

Verdict:

Malicious

Labled as:

Malware.Generic

Link:

https://www.hybrid-analysis.com/sample/b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-05-21T23:44:00Z UTC

Last seen:

2026-05-23T19:20:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan-Spy.MSIL.Downeks.gen HEUR:Trojan-Spy.MSIL.Agent.sb Trojan.Win32.Quasar.sb Trojan.MSIL.Quasar.a Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Agent.sb

Link:

https://opentip.kaspersky.com/b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/9dd304ea-0c14-4ec7-a13f-8d502eedf933

Score:

78%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454/

Verdict:

Malicious

Threat:

Family.QUASARRAT

Link:

https://tip.neiki.dev/file/b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2026-05-22 02:40:53 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 24 (87.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=w423u6cgiwar2gupszpxbfggqrs4ro7k2az2l6ppmexrxt7j2rka._file

Verdict:

malicious

Label(s):

quasarrat

QuasarRAT

1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3

QuasarRAT

96a789ec906e41c8c6f8c9c3b15c44ea1c49d12c1e3641342407bfec2ee56848

QuasarRAT

b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454

QuasarRAT

error

QuasarRAT

+ 1'176 additional samples on MalwareBazaar

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar spyware trojan

Link:

https://tria.ge/reports/260522-c42yhafw9w/

Behaviour

Suspicious use of AdjustPrivilegeToken

Family: Quasar RAT

Quasar payload

Unpacked files

SH256 hash:

b735ba784645811d1a8f965f7094c68465c8bbead033a5f9ef612f1bcfe9d454

MD5 hash:

00e0bbfc05f490c4857ae89ec7915391

SHA1 hash:

6964aa452b03fc3ac120bf803fb5427363671b01

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/eff1a05e-5224-4c39-9878-353d29e35ed4/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b735ba784645/report/overview.html

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

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:	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_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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_Win_QuasarStealer Create hunting rule
Author:	ditekshen
Description:	Detects Quasar infostealer

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:	quasarrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	quasarrat_kingrat Create hunting rule
Author:	jeFF0Falltrades

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

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/67483/

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