MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8209bb5223a3afbedd0d3f3d689baba884b9a217ae238bb8b81a67034d51742f. 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: 9
| SHA256 hash: | 8209bb5223a3afbedd0d3f3d689baba884b9a217ae238bb8b81a67034d51742f |
|---|---|
| SHA3-384 hash: | 3bf665b6d59b8ed95593992d50d8c6f728ecd44d155f04997cef878c0d6a78158ffc032717583be9de7a6ed8b81440d7 |
| SHA1 hash: | 045a3b83991b954b77405cb0287322bb48dba6f8 |
| MD5 hash: | d9da817b7774dfb0e079dba87503b9ad |
| humanhash: | whiskey-carpet-early-maine |
| File name: | FAC1T.js |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 85'781 bytes |
| First seen: | 2026-09-04 12:32:16 UTC |
| Last seen: | Never |
| File type: |  js |
| MIME type: | text/plain |
| ssdeep | 768:dpoMqLDDgfLmhiiJLF4DzMpeeWx2SSdwtLOTk:dpFCIiiZYpe1Tz |
| TLSH | T14783B719FB311BA83094F4FC89A7702C6672889FC66CD175687F37344AE52E068B4D9B |
| Magika | cs |
| Reporter |  abuse_ch |
| Tags: | js QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
173
Origin country :
SEVendor Threat Intelligence
No detections
Detection(s):
Verdict:
Malicious
Score:
94.1%
Tags:
downloader quasar shell virus
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint persistence powershell powershell repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-09-04T01:31:00Z UTC
Last seen:
2026-09-04T01:57:00Z UTC
Hits:
~10
Result
Threat name:
Clipboard Hijacker, Quasar
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to hide user accounts
Creates processes via WMI
Drops script or batch files to the startup folder
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript source code contains functionality to generate code involving a shell, file or stream
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: Powershell Download and Execute IEX
Sigma detected: PowerShell Download and Execution Cradles
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious PowerShell Download and Execute Pattern
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected Clipboard Hijacker
Yara detected Generic Downloader
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected Quasar RAT
Yara detected RUNPE
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Verdict:
Malware
YARA:
2 match(es)
Tags:
DeObfuscated Javascript PowerShell Powershell: Hidden Execution T1027 T1059.001 T1059.007 T1105
Threat name:
Script-JS.Downloader.QuasarRAT
Status:
Malicious
First seen:
2026-09-04 12:10:01 UTC
File Type:
Text (VBS)
AV detection:
6 of 23 (26.09%)
Threat level:
3/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
10/10
Tags:
execution persistence privilege_escalation
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Executes a command shell one-liner
Creates a file in the Startup directory
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Process spawned unexpected child process
Malware Config
Dropper Extraction:
https://tuiskr.com/cjr1.jpg
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: | detect_powershell |
|---|---|
| Author: | daniyyell |
| Description: | Detects suspicious PowerShell activity related to malware execution |
| Rule name: | Detect_PowerShell_Obfuscation |
|---|---|
| Author: | daniyyell |
| Description: | Detects obfuscated PowerShell commands commonly used in malicious scripts. |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | WScript_Shell_PowerShell_Combo_RID32E7 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware from Middle Eastern campaign reported by Talos |
| Reference: | http://blog.talosintelligence.com/2018/02/targeted-attacks-in-middle-east.html |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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