MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb069ae21ea35f433754f782cc0b4d2e8334e2e2ea435c2a5de49b6efe7a371e. 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: bb069ae21ea35f433754f782cc0b4d2e8334e2e2ea435c2a5de49b6efe7a371e
SHA3-384 hash: d2d8dcd2105f771d41b4b35729e1e7fbcca4a5f17d3774cc31ac9ac9111a221b61451b2c9eb5b921e37b903e64633251
SHA1 hash: e56e50baf126498a7fb312d0c4eb24a65b6ad8ec
MD5 hash: 3e2d917929fdf6bb434ef6ef548557ce
humanhash: indigo-potato-item-triple
File name:CopilotDriver.js
Download: download sample
Signature RemcosRAT
File size:9'024'191 bytes
First seen:2026-02-22 15:50:35 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:lh2tjJryxEZAjM3LbQbawLbNAaL/FRZAZr:lh2/bbQhbNAaRZAZr
Threatray 2'153 similar samples on MalwareBazaar
TLSH T13E96125045B35BC788324E9FCAFCA1C5BA31477FD84B8559B4BDC7DB8A8629E31A0708
Magika javascript
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
139
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
94.9%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 base64 fingerprint obfuscated obfuscated overlay powershell repaired
Result
Gathering data
Verdict:
Malicious
File Type:
js
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic
Result
Threat name:
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: Potential PowerShell Command Line Obfuscation
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 Powershell decode and execute
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1873094 Sample: CopilotDriver.js Startdate: 22/02/2026 Architecture: WINDOWS Score: 100 23 msidownloads.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 15 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, 49699, 49700 ColombiaMovilCO Colombia 11->29 31 hostphpwindowsapps.ydns.eu 178.73.192.6, 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:
2026-02-22 13:09:29 UTC
File Type:
Text (JavaScript)
AV detection:
5 of 36 (13.89%)
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 bb069ae21ea35f433754f782cc0b4d2e8334e2e2ea435c2a5de49b6efe7a371e

(this sample)

  
Delivery method
Distributed via web download

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