MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941. 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: 16

Intelligence 16 IOCs YARA 28 File information Comments 2

SHA256 hash:	b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941
SHA3-384 hash:	78a8fc0cba8192454cf7fb0718cb37eb4ecd27519d984e630ef3f4b9170a6ca1c4db4485d301d45ac6299b24acf89611
SHA1 hash:	c2be04e0c789b8d858c1886ac7e366e0ed2b621e
MD5 hash:	a5866c018192d944c652d8f1259b1ef1
humanhash:	july-saturn-lithium-autumn
File name:	Runtime Broker.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	3'266'048 bytes
First seen:	2025-07-17 13:52:16 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'076 x AgentTesla, 20'036 x Formbook, 12'353 x SnakeKeylogger)
ssdeep	49152:bvvlL26AaNeWgPhlmVqvMQ7XSKJURJ61bR3LoGdCTHHB72eh2NT:bv9L26AaNeWgPhlmVqkQ7XSKJURJ6H
TLSH	T128E56B143BF85E27E1BBE277E5B0041267F0FC1AB363EB0B6581677A1C53B5098426A7
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
Reporter	skocherhan
Tags:	exe github-Antem0rtem QuasarRAT

skocherhan

https://github.com/Antem0rtem/a/raw/refs/heads/main/Runtime%20Broker.exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Runtime Broker.exe

Verdict:

Malicious activity

Analysis date:

2025-07-17 13:56:43 UTC

Tags:

auto-reg

Link:

https://app.any.run/tasks/e119b78d-8d12-403e-9b4d-b31d2f9fcf72

Note:

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

Detection:

QuasarStealer

Link:

https://www.capesandbox.com/analysis/15049/

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:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=687900232f623871a5ef3164

Tags:

infosteal autorun quasar

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a file in the %AppData% subdirectories

Launching a process

Enabling autorun by creating a file

Verdict:

Malicious

Labled as:

MSIL.PasswordStealerA.Generic

Link:

https://www.hybrid-analysis.com/sample/b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941

Malware family:

Quasar RAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f95a5d3e-5745-4403-a287-dc7a762cc5b6

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941

Verdict:

inconclusive

YARA:

13 match(es)

Tags:

.Net Executable PE (Portable Executable) Win 32 Exe x86

Link:

https://app.malva.re/file/a5866c018192d944c652d8f1259b1ef1

Detection:

quasar

Link:

https://mwdb.cert.pl/sample/b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941/

Verdict:

Malicious

Threat:

ByteCode-MSIL.Backdoor.Quasar

Link:

https://tip.neiki.dev/file/b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941

Threat name:

ByteCode-MSIL.Backdoor.Quasar

Status:

Malicious

First seen:

2025-07-17 13:52:28 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=wlnth7olckejx5xwxwgoqkop75jsmhhv63z4wkkaszyiytcqpfaq._file

Result

Malware family:

quasar

Score:

10/10

Tags:

family:quasar botnet:runtimebroker discovery execution persistence spyware trojan

Link:

https://tria.ge/reports/250717-q6kznadm9z/

Behaviour

Runs ping.exe

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

Checks computer location settings

Executes dropped EXE

Quasar RAT

Quasar family

Quasar payload

Malware Config

C2 Extraction:

/alohadanke6969-53558.portmap.host:53558

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/d96e1788-d2a4-450e-86e3-7f81c6e9310b

Unpacked files

SH256 hash:

b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941

MD5 hash:

a5866c018192d944c652d8f1259b1ef1

SHA1 hash:

c2be04e0c789b8d858c1886ac7e366e0ed2b621e

Detections:

QuasarRAT

Link:

https://www.unpac.me/results/28822277-a00c-4153-b8f1-f41d2539312f/

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/b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941

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:	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:	Diff_QuasarRAT_01 Create hunting rule
Author:	schmidtsz
Description:	Identify QuasarRAT samples

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:	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 b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941

(this sample)

Cape

https://www.capesandbox.com/analysis/15049/

URLhaus

https://urlhaus.abuse.ch/url/3584983/

Delivery method

Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Comments

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commented on 2025-08-08 18:58:28 UTC

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

{
"sha256": "b2db33fdcb12889bf6f6bd8ce829cfff53261cf5f6f3cb294096708c4c507941",
"yara_possible_family": "quasarrat",
"key": "1dec2e7693005f0bf8c9683679e33614383754c39eb546d7b1fb567e4b00e0f7",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"obfuscated_key_1": "1.4.1",
"obfuscated_key_2": "/alohadanke6969-53558.portmap.host:53558;",
"obfuscated_key_3": 3000,
"obfuscated_key_4": "APPLICATIONDATA",
"obfuscated_key_5": "SubDir",
"obfuscated_key_6": "Runtime Broker.exe",
"obfuscated_key_7": true,
"obfuscated_key_8": true,
"obfuscated_key_9": "549752c1-7217-43da-bdcb-f94c3f7dd965",
"obfuscated_key_10": "RuntimeBroker",
"obfuscated_key_11": true,
"obfuscated_key_12": true,
"obfuscated_key_13": "7FFADE079127D1E3A210FCF7E63CEEC1F7B55A75",
"obfuscated_key_14": "RuntimeBroker",
"obfuscated_key_15": "Logs",
"obfuscated_key_16": "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",
"obfuscated_key_17": "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",
"obfuscated_key_18": true,
"obfuscated_key_19": true,
"obfuscated_key_20": "",
"obfuscated_key_21": "",
"obfuscated_key_22": false
}
}

commented on 2025-08-08 18:57:11 UTC