MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac4f52f2a9cd30338e5a41ed8330255617f8f51899e14e6199c64f4df54f6e34. 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: 12


Intelligence 12 IOCs YARA File information Comments

SHA256 hash: ac4f52f2a9cd30338e5a41ed8330255617f8f51899e14e6199c64f4df54f6e34
SHA3-384 hash: be6a3d935e85abea58ece7377407d638c07347d8a62449b80e27f2919090c2fb986419c6fb77a3e2b13c2e964a528f87
SHA1 hash: 59299989e98ce2c9123fe1959ed3530db72780ac
MD5 hash: 56bef4d9f0775a407359835a12db9d18
humanhash: ceiling-red-golf-rugby
File name:CopilotDriver.vbs
Download: download sample
Signature RemcosRAT
File size:88'059 bytes
First seen:2025-08-23 09:30:01 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 768:WFmxPh1BETehHDKGXBavzooGaQ7G07XQAtK+Z+bZ4Z8ZdZ9ZpOYiao:WFzTehHeGXDt5XQuKa5YNo
Threatray 1'362 similar samples on MalwareBazaar
TLSH T19C8387E2BC521C0A5803F42F88F479DEB546DDB7F2B6FC70910904594EAE6859EA3C6C
Magika vba
Reporter abuse_ch
Tags:RemcosRAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
63
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
91.7%
Tags:
obfuscate xtreme spawn
Verdict:
Malicious
File Type:
vbs
First seen:
2025-08-23T05:49:00Z UTC
Last seen:
2025-08-23T05:49:00Z UTC
Hits:
~10
Result
Threat name:
Remcos, PureLog Stealer
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
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
Found Tor onion address
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
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 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: 1763560 Sample: CopilotDriver.vbs Startdate: 23/08/2025 Architecture: WINDOWS Score: 100 24 pasar09enero.duckdns.org 2->24 26 ia801009.us.archive.org 2->26 28 2 other IPs or domains 2->28 46 Suricata IDS alerts for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 54 13 other signatures 2->54 8 wscript.exe 2->8         started        signatures3 52 Uses dynamic DNS services 24->52 process4 signatures5 56 Suspicious powershell command line found 8->56 58 Wscript starts Powershell (via cmd or directly) 8->58 60 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->60 62 2 other signatures 8->62 11 powershell.exe 14 15 8->11         started        process6 dnsIp7 30 archive.org 207.241.224.2, 443, 49687 INTERNET-ARCHIVEUS United States 11->30 32 ia801009.us.archive.org 207.241.228.89, 443, 49688 INTERNET-ARCHIVEUS United States 11->32 34 cdn.discordapp.com 162.159.135.233, 443, 49691 CLOUDFLARENETUS United States 11->34 64 Found Tor onion address 11->64 66 Writes to foreign memory regions 11->66 68 Injects a PE file into a foreign processes 11->68 15 AppLaunch.exe 4 2 11->15         started        20 conhost.exe 11->20         started        signatures8 process9 dnsIp10 36 pasar09enero.duckdns.org 181.206.158.190, 3000, 49692, 49694 ColombiaMovilCO Colombia 15->36 22 C:\ProgramData\remcos\registros.dat, data 15->22 dropped 38 Contains functionality to bypass UAC (CMSTPLUA) 15->38 40 Detected Remcos RAT 15->40 42 Contains functionalty to change the wallpaper 15->42 44 4 other signatures 15->44 file11 signatures12
Verdict:
Malware
YARA:
1 match(es)
Tags:
Batch Command DeObfuscated PowerShell PowerShell Call Scripting.FileSystemObject SMTPControl.SMTP VBScript
Threat name:
Win32.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-08-23 01:00:25 UTC
File Type:
Text (VBS)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos defense_evasion discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Modifies trusted root certificate store through registry
Process spawned unexpected child process
Remcos
Remcos family
Malware Config
C2 Extraction:
pasar09enero.duckdns.org:3000
Dropper Extraction:
https://archive.org/download/optimized_msi_20250821/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

Visual Basic Script (vbs) vbs ac4f52f2a9cd30338e5a41ed8330255617f8f51899e14e6199c64f4df54f6e34

(this sample)

  
Delivery method
Distributed via web download

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