MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c86ebb0e9a245fbe86a024641eb2a7dc236351c98ef98392ea366539b509827d. 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



RemcosRAT


Vendor detections: 13


Intelligence 13 IOCs YARA File information Comments

SHA256 hash: c86ebb0e9a245fbe86a024641eb2a7dc236351c98ef98392ea366539b509827d
SHA3-384 hash: d2a4246725ca08de56ba2bba79c3bc631d4727186ebde2c35431c97fceaa46f9046b245750eafa50d33005e53c19fdf6
SHA1 hash: 3ccaf480789100aa14d85b2bf4a8429e504c03eb
MD5 hash: 72f5c229cc15f5677caa12e816b93aef
humanhash: four-pluto-sad-seventeen
File name:CopilotDriver.js
Download: download sample
Signature RemcosRAT
File size:7'173'797 bytes
First seen:2026-02-05 07:15:04 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 384:PZAxeatOtaZf30cnFtcNFavFcJomcZbzcII+SWkDuLZMPuWe0/PwEgG3SfNwOrRL:NvDu1crzzaN/e4D36U7
Threatray 2'076 similar samples on MalwareBazaar
TLSH T1067613FC516248C865C9951F876EB3E2FE457496140AFD7E4A388AE790F1E8F31E01AC
Magika javascript
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
130
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
90.9%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 fingerprint obfuscated powershell repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-02-04T17:22:00Z UTC
Last seen:
2026-02-04T17:42:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Script.SAgent.gen Trojan.JS.SAgent.sb
Result
Threat name:
Remcos, PureLog Stealer
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates processes via WMI
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Unusual module load detection (module proxying)
Uses dynamic DNS services
Uses known network protocols on non-standard ports
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected MSIL Crypter
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected PureLog Stealer
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1863741 Sample: CopilotDriver.js Startdate: 05/02/2026 Architecture: WINDOWS Score: 100 23 msidownload.duckdns.org 2->23 25 systemcopilotdrivers.ydns.eu 2->25 27 6 other IPs or domains 2->27 41 Suricata IDS alerts for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 49 16 other signatures 2->49 8 wscript.exe 1 2->8         started        signatures3 47 Uses dynamic DNS services 23->47 process4 signatures5 51 Suspicious powershell command line found 8->51 53 Wscript starts Powershell (via cmd or directly) 8->53 55 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->55 57 2 other signatures 8->57 11 powershell.exe 14 15 8->11         started        process6 dnsIp7 29 systemcopilotdrivers.ydns.eu 181.206.158.190, 3001, 49696, 49697 ColombiaMovilCO Colombia 11->29 31 hostphpwindowsapps.ydns.eu 46.246.86.4, 49693, 8011 PORTLANEwwwportlanecomSE Sweden 11->31 59 Writes to foreign memory regions 11->59 61 Injects a PE file into a foreign processes 11->61 15 MSBuild.exe 4 2 11->15         started        19 conhost.exe 11->19         started        signatures8 process9 file10 21 C:\ProgramData\Copilotdrivers\logs.dat, data 15->21 dropped 33 Contains functionality to bypass UAC (CMSTPLUA) 15->33 35 Detected Remcos RAT 15->35 37 Contains functionalty to change the wallpaper 15->37 39 5 other signatures 15->39 signatures11
Verdict:
inconclusive
YARA:
1 match(es)
Threat name:
Script-JS.Trojan.ObfPadding
Status:
Malicious
First seen:
2026-02-05 02:23:39 UTC
File Type:
Binary
AV detection:
4 of 36 (11.11%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:tar1 discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Process spawned unexpected child process
Remcos
Remcos family
Malware Config
C2 Extraction:
systemcopilotdrivers.ydns.eu:3001
Dropper Extraction:
http://hostphpwindowsapps.ydns.eu:8011/data/optimized_MSI.png
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

RemcosRAT

Java Script (JS) js c86ebb0e9a245fbe86a024641eb2a7dc236351c98ef98392ea366539b509827d

(this sample)

  
Delivery method
Distributed via web download

Comments