MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50. 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: 22

Intelligence 22 IOCs YARA 29 File information Comments 1

SHA256 hash:	3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50
SHA3-384 hash:	c524d3fd64ccea67d708f4469e641e3dba4f4592f0fce7efc374f0526ef12eaca8155fe32eeeabce86a5ed823a3819c1
SHA1 hash:	e5e3f446e406ef98515f194a6d013b23b350f5aa
MD5 hash:	1b67e62e91c65302f1a4c9494f8464cc
humanhash:	may-bakerloo-magazine-thirteen
File name:	win11.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	3'334'144 bytes
First seen:	2026-01-11 17:41:51 UTC
Last seen:	2026-01-11 17:43:47 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'097 x AgentTesla, 20'115 x Formbook, 12'356 x SnakeKeylogger)
ssdeep	49152:HvrlL26AaNeWgPhlmVqvMQ7XSKZUP8hbbRzLoGx0THHB72eh2NTg:HvRL26AaNeWgPhlmVqkQ7XSKeP8hZK
TLSH	T1B8F55A0537F85E32E16BD37295F1541367F0FC2AB363EB0B659167BA1C93B408842AA7
TrID	58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 8.4% (.EXE) Win64 Executable (generic) (10522/11/4) 5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
dhash icon	b9b69acccecf6920 (4 x QuasarRAT, 1 x DCRat, 1 x KeyzetsuClipper)
Reporter	ame221a
Tags:	c2 exe Quasar QuasarRAT trojan

Intelligence

File Origin

# of uploads :

# of downloads :

333

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/0e5252d6-691a-46a5-b2d8-27de3c6d0d2c/

Malware family:

quasar

ID:

File name:

win11.exe

Verdict:

Malicious activity

Analysis date:

2026-01-11 17:43:02 UTC

Tags:

quasar

Link:

https://app.any.run/tasks/acf03084-3a26-46f5-94c5-04385b30ad3d

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/48551/

Detection(s):

Win.Malware.Generic-9883083-0

Win.Malware.Msilheracles-9900242-0

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL

Win.Packed.Downeks-6898097-0

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6963e109a3ed2a87ae3e5c06

Tags:

infosteal quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a file in the system32 subdirectories

Creating a process from a recently created file

Creating a file

DNS request

Connection attempt

Unauthorized injection to a recently created process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 certreq expand explorer fingerprint infostealer lolbin obfuscated obfuscated quasar quasarrat reconnaissance runonce schtasks soft-404 stealer tiger

Link:

https://www.filescan.io/uploads/6963e10407ef5fa68e847904/reports/934ced57-abec-4f91-a056-713023e4d576/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-01-11T14:48:00Z UTC

Last seen:

2026-01-12T08:41:00Z UTC

Hits:

~10

Detections:

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

Link:

https://opentip.kaspersky.com/3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50/results?tab=lookup

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f11d9846-6130-45ad-812c-0ba502140c7b

Score:

94%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50

Verdict:

inconclusive

YARA:

13 match(es)

Tags:

.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.31 Win 32 Exe x86

Link:

https://app.malva.re/file/1b67e62e91c65302f1a4c9494f8464cc

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50/

Verdict:

Malicious

Threat:

Family.QUASAR

Link:

https://tip.neiki.dev/file/3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2026-01-11 17:42:31 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=gbl6yw3muscbwe3tt6jwuquo3plhdpzgx4p24t7vf26wo66yfria._file

Verdict:

malicious

Label(s):

quasarrat

Similar samples:

error

QuasarRAT

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:office04 spyware trojan

Link:

https://tria.ge/reports/260111-v98mcabs7d/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Drops file in System32 directory

Executes dropped EXE

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

da88.in.net:4782
www.da88.in.net:4782

Verdict:

Malicious

Tags:

rat quasar_rat stealer Win.Malware.Generic-9883083-0

YARA:

MAL_QuasarRAT_May19_1 malware_windows_quasarrat win_quasar_rat_client MALWARE_Win_Quasarstealer

Link:

https://app.threat.zone/submission/5f85a491-3e40-4e1d-b4f6-4b00c29fcc27

Unpacked files

SH256 hash:

3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50

MD5 hash:

1b67e62e91c65302f1a4c9494f8464cc

SHA1 hash:

e5e3f446e406ef98515f194a6d013b23b350f5aa

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/d3f89657-c99e-44b0-af61-1d001625c173/

Malware family:

QuasarRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/3057ec5b6ca4/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/3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50

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:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

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

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:	Lumma_Stealer_Detection Create hunting rule
Author:	ashizZz
Description:	Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:	https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/

Rule name:	MALWARE_Win_QuasarStealer Create hunting rule
Author:	ditekshen
Description:	Detects Quasar infostealer

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:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

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:	RC6_Constants Create hunting rule
Author:	chort (@chort0)
Description:	Look for RC6 magic constants in binary
Reference:	https://twitter.com/mikko/status/417620511397400576

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

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:	Windows_Generic_Threat_803feff4 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.

File information

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

Web download

QuasarRAT

exe 3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50

(this sample)

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/48551/

Comments

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commented on 2026-01-11 17:46:11 UTC

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

{
"sha256": "3057ec5b6ca4841b13739f936a428edbd671bf26bf1fae4ff52ebd677bd82c50",
"yara_possible_family": "quasarrat",
"key": "ddb9650858f6e2ff50b76de025ac3799169eeb3f9fadd0331169119c43bf414b",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"obfuscated_key_1": "1.4.1",
"obfuscated_key_2": "da88.in.net:4782;www.da88.in.net:4782;",
"obfuscated_key_3": 3000,
"obfuscated_key_4": "SYSTEM",
"obfuscated_key_5": "SubDir",
"obfuscated_key_6": "win11.exe",
"obfuscated_key_7": true,
"obfuscated_key_8": false,
"obfuscated_key_9": "6b272a31-8137-4076-b27d-9b0563ddf269",
"obfuscated_key_10": "Quasar Client Startup",
"obfuscated_key_11": false,
"obfuscated_key_12": false,
"obfuscated_key_13": "9D3C28E509C420315CFD1EE672665AE9DB4E9483",
"obfuscated_key_14": "Office04",
"obfuscated_key_15": "Logs",
"obfuscated_key_16": "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",
"obfuscated_key_17": "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",
"obfuscated_key_18": false,
"obfuscated_key_19": false,
"obfuscated_key_20": "",
"obfuscated_key_21": "",
"obfuscated_key_22": false
}
}