MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6. 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

SHA256 hash:	bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6
SHA3-384 hash:	c79d2a2b3129bfba6f56f3b33349cfe8cd587a6fd303daa0c15cff47b5dedfe6d199555dd8299805eb86f8eb740fbc15
SHA1 hash:	b3d2c15fc0930ad290608301107ad522cc65fb74
MD5 hash:	fe8bef8dfe521760508e6768266b37c5
humanhash:	twelve-venus-mirror-delaware
File name:	app.vbs
Download:	download sample
Signature	QuasarRAT Alert Create hunting rule
File size:	817 bytes
First seen:	2025-10-14 12:06:39 UTC
Last seen:	Never
File type:	vbs
MIME type:	text/plain
ssdeep	12:kjj0bNvDzxvCYh1RWvD8FUOMxEWWAsjHpcomzERQniiRkCbYUZplYjL6xlSm3W:NbN7zeoUOMxEWWAMJJmoiniAxTMuzSj
TLSH	T12301AB06E44AE3648E6185C3A668DC1FDE01A9236202E418F54CC64FCB608F4F1482FF
Magika	vba
Reporter	abuse_ch
Tags:	QuasarRAT RAT vbs

Intelligence

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File Origin

# of uploads :

1

# of downloads :

44

Origin country :

SE

Vendor Threat Intelligence

CAPE Sandbox

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/32693/

CyberFortress Malicious

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68ee3cf504e22ce9acd9f643

Tags:

vmdetect autorun quasar

Hybrid Analysis Unknown

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

vbs

First seen:

2025-10-13T15:55:00Z UTC

Last seen:

2025-10-14T10:39:00Z UTC

Hits:

~100

Detections:

Trojan.MSIL.Agent.sb HEUR:Trojan-Downloader.Script.Generic Backdoor.MSIL.Crysan.d Trojan-Downloader.VBS.SLoad.sb Trojan-Downloader.JS.SLoad.sb HEUR:Trojan-Banker.MSIL.ClipBanker.gen HEUR:Trojan.Win32.Generic Trojan.MSIL.Quasar.ffn PDM:Trojan.Win32.Tasker.cust Trojan-PSW.MSIL.Agent.sb Trojan-Downloader.JS.Cryptoload.sb Trojan.MSIL.Quasar.ffm Trojan.MSIL.Quasar.a

Link:

https://opentip.kaspersky.com/bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6/results?tab=lookup

Joe Sandbox Quasar

Result

Threat name:

Quasar

Alert

Create hunting rule

Detection:

malicious

Classification:

spre.troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1794781

Signature

Antivirus detection for URL or domain

Benign windows process drops PE files

Hides that the sample has been downloaded from the Internet (zone.identifier)

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Potential malicious VBS script found (has network functionality)

Sigma detected: Script Initiated Connection to Non-Local Network

Sigma detected: WScript or CScript Dropper

System process connects to network (likely due to code injection or exploit)

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses dynamic DNS services

VBScript performs obfuscated calls to suspicious functions

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Yara detected AntiVM3

Yara detected Quasar RAT

Yara detected VBS Downloader Generic

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Susipicious

Score:

52%

Verdict:

Susipicious

File Type:

SCRIPT

Link:

https://malprob.io/report/bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6

Malva.RE Malware

Verdict:

Malware

YARA:

1 match(es)

Tags:

ADODB.Stream DeObfuscated MSXML2.XMLHTTP Obfuscated Scripting.FileSystemObject T1059.005 VBScript WScript.Shell

Link:

https://app.malva.re/file/fe8bef8dfe521760508e6768266b37c5

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6/

Neiki Family.QUASAR

Verdict:

Malicious

Threat:

Family.QUASAR

Link:

https://tip.neiki.dev/file/bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=x45rpjumwq35rtywx2sic6lnxx54qictavwepys6qqnanyx5j2ta._file

Threatray quasarrat

Verdict:

malicious

Label(s):

quasarrat

Alert

Create hunting rule

Similar samples:

error

QuasarRAT

Hatching Triage quasar

Result

Malware family:

quasar

Alert

Create hunting rule

Score:

  10/10

Tags:

family:quasar execution persistence spyware trojan

Link:

https://tria.ge/reports/251014-panv1aaj41/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Checks computer location settings

Executes dropped EXE

Badlisted process makes network request

Downloads MZ/PE file

Quasar RAT

Quasar family

Quasar payload

VirusTotal

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

YOROI YOMI Malicious File

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6

File information

---

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

Web download

QuasarRAT

vbs bf3b17a68cb437d8cf16bea481796dbdfbc82053056c47e25e841a06e2fd4ea6

(this sample)

  

URLhaus

https://urlhaus.abuse.ch/url/3671626/

  

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/32693/