MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd0261f37a95fd026d923bae8d3f69728a99af0afe8b62815afb92be993dd1f7. 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: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: cd0261f37a95fd026d923bae8d3f69728a99af0afe8b62815afb92be993dd1f7
SHA3-384 hash: 1359f5f0ff8c9eb60691a1ef2a6051327a4ddda09f1dd0ab316a2c79fac84727f1db918099683c8b217cd02a5ae2316c
SHA1 hash: 437c661ea038fa9f01c36a66cf64273cae76c8be
MD5 hash: 5f0c6fed44aaef7daa745abd44f8db6f
humanhash: fourteen-seventeen-cardinal-avocado
File name:CopilotDrivers.js
Download: download sample
Signature RemcosRAT
File size:4'270'552 bytes
First seen:2025-12-30 16:16:02 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:Vq0FxMPJ7glvHk6cLGdwRHssX5OgFwjqe9bLEV:cV
Threatray 1'335 similar samples on MalwareBazaar
TLSH T1AD16C63782DDB9D7C1111780CD77AA027215D91FDD469E38FC1CE6C86B38A6903B2BA6
Magika javascript
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
98
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
91.7%
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
First seen:
2025-12-29T17:03:00Z UTC
Last seen:
2025-12-29T17:37:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Script.Generic Trojan.JS.SAgent.sb HEUR:Trojan.Script.SAgent.gen
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Found Tor onion address
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 Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Reflective Assembly Load
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
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 Generic Downloader
Yara detected MSILDownloaderGeneric
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: 1842149 Sample: CopilotDrivers.js Startdate: 30/12/2025 Architecture: WINDOWS Score: 100 27 hostphpwindowsdriversappssi.duckdns.org 2->27 29 systemcopilotdriver.ydns.eu 2->29 31 9 other IPs or domains 2->31 39 Suricata IDS alerts for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 47 18 other signatures 2->47 8 wscript.exe 1 2->8         started        signatures3 45 Uses dynamic DNS services 27->45 process4 signatures5 49 Suspicious powershell command line found 8->49 51 Wscript starts Powershell (via cmd or directly) 8->51 53 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->53 55 2 other signatures 8->55 11 powershell.exe 14 15 8->11         started        process6 dnsIp7 33 archive.org 207.241.224.2, 443, 49690 INTERNET-ARCHIVEUS United States 11->33 35 ia601708.us.archive.org 207.241.227.98, 443, 49692 INTERNET-ARCHIVEUS United States 11->35 37 systemcopilotdriver.ydns.eu 181.206.158.190, 3001, 49697, 49698 ColombiaMovilCO Colombia 11->37 57 Found Tor onion address 11->57 59 Writes to foreign memory regions 11->59 61 Injects a PE file into a foreign processes 11->61 63 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->63 15 MSBuild.exe 11->15         started        18 MSBuild.exe 4 2 11->18         started        21 conhost.exe 11->21         started        23 MSBuild.exe 11->23         started        signatures8 process9 file10 65 Contains functionality to bypass UAC (CMSTPLUA) 15->65 67 Contains functionalty to change the wallpaper 15->67 69 Contains functionality to steal Chrome passwords or cookies 15->69 75 3 other signatures 15->75 25 C:\ProgramData\remcos\registros.dat, data 18->25 dropped 71 Detected Remcos RAT 18->71 73 Installs a global keyboard hook 18->73 signatures11
Verdict:
inconclusive
YARA:
1 match(es)
Gathering data
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 cd0261f37a95fd026d923bae8d3f69728a99af0afe8b62815afb92be993dd1f7

(this sample)

  
Delivery method
Distributed via web download

Comments