MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d589a0e9f5da14db597540dca8f91d852ddc9a23749a49e1a607ba112a692ae7. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d589a0e9f5da14db597540dca8f91d852ddc9a23749a49e1a607ba112a692ae7
SHA3-384 hash: c2d20362871699abe6116a7919662d35524869deb1d649f3c4eca31fd14ef3347b39807caff4f00af2f3e8b0bcc577a5
SHA1 hash: 1dfbf0f8dbde11754ca519877411a1266c7d54a8
MD5 hash: 4dcecb3a90734cb13c052a647477d6e2
humanhash: william-lima-autumn-mars
File name:CopilotDrivers.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'652'430 bytes
First seen:2025-09-16 07:59:23 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:75FLm9yNTlkKUgd5FLm9yNTlkKUg15FLm9yNTlkKUgw:7LTNnJLTNnxLTNnE
Threatray 1'613 similar samples on MalwareBazaar
TLSH T145C5C8A2AE3E724744251E359BED56B27280C62F11FFB70A7F962139F5BCA03C418B54
Magika txt
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68c91923e579c633a4b59b4a
Tags:
obfuscate xtreme spawn
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/d589a0e9f5da14db597540dca8f91d852ddc9a23749a49e1a607ba112a692ae7
Verdict:
Malicious
File Type:
js
First seen:
2025-09-15T23:54:00Z UTC
Last seen:
2025-09-15T23:54:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/d589a0e9f5da14db597540dca8f91d852ddc9a23749a49e1a607ba112a692ae7/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1778303
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
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)
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
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 download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1778303 Sample: CopilotDrivers.js Startdate: 16/09/2025 Architecture: WINDOWS Score: 100 25 hostphpwindowsdriversapp.ydns.eu 2->25 27 systemcopilotdriver.ydns.eu 2->27 29 2 other IPs or domains 2->29 37 Suricata IDS alerts for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 10 other signatures 2->43 8 wscript.exe 1 2->8         started        signatures3 process4 signatures5 45 Suspicious powershell command line found 8->45 47 Wscript starts Powershell (via cmd or directly) 8->47 49 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->49 51 2 other signatures 8->51 11 powershell.exe 14 16 8->11         started        process6 dnsIp7 31 archive.org 207.241.224.2, 443, 49690 INTERNET-ARCHIVEUS United States 11->31 33 systemcopilotdriver.ydns.eu 181.206.158.190, 3001, 49692, 49693 ColombiaMovilCO Colombia 11->33 35 dn721801.ca.archive.org 204.62.247.83, 443, 49691 COGENT-174US United States 11->35 53 Found Tor onion address 11->53 55 Writes to foreign memory regions 11->55 57 Injects a PE file into a foreign processes 11->57 15 MSBuild.exe 11->15         started        18 MSBuild.exe 4 2 11->18         started        21 conhost.exe 11->21         started        signatures8 process9 file10 59 Contains functionality to bypass UAC (CMSTPLUA) 15->59 61 Contains functionalty to change the wallpaper 15->61 63 Contains functionality to steal Chrome passwords or cookies 15->63 69 2 other signatures 15->69 23 C:\ProgramData\remcos\registros.dat, data 18->23 dropped 65 Detected Remcos RAT 18->65 67 Installs a global keyboard hook 18->67 signatures11
Score:
90%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d589a0e9f5da14db597540dca8f91d852ddc9a23749a49e1a607ba112a692ae7
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d589a0e9f5da14db597540dca8f91d852ddc9a23749a49e1a607ba112a692ae7/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-09-16 08:06:34 UTC
File Type:
Text (JavaScript)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2we2b2pv3iknwwlvidokr6i5quw5zgrdosnetynga65bcktjfltq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0780b511b4413c846adda72e7ede6afb0398a084112bf0399d2d4041f952cfa4
RemcosRAT
6bc677ac4c36cb99e3170edb2b29b8e8b47399a2896f8f0c6fa998b4337bcf35
RemcosRAT
9a85868fada912b766b75721172bd8d3c741cb29811490fd8e9f53832712fe89
RemcosRAT
c208d8d0493c60f14172acb4549dcb394d2b92d30bcae4880e66df3c3a7100e4
RemcosRAT
d58ef7f6352296a5f9052e5bb522a0556037f373b27dd1bf4c53a521f0f7a0a8
RemcosRAT
d84b28f6ce7bca728fdf5eea7ed6cc3d6bed66d189c9218484d62fda4d5a4c9c
RemcosRAT
dd526d6b1e6b225b484425cfce62bc318dae7ad5356e81587a511394a3e34aa0
RemcosRAT
e119c6c5485307075a1e5d0950a77f978f7f17e23c315ed8c38cc1259b8af26f
RemcosRAT
error
RemcosRAT
+ 1'603 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos discovery execution rat
Link:
https://tria.ge/reports/250916-jysk7ssxgx/
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:
systemcopilotdriver.ydns.eu:3001
Dropper Extraction:
https://archive.org/download/optimized_msi_20250904/optimized_MSI.png
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/d589a0e9f5da14db597540dca8f91d852ddc9a23749a49e1a607ba112a692ae7

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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

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 d589a0e9f5da14db597540dca8f91d852ddc9a23749a49e1a607ba112a692ae7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3597686/
  
Delivery method
Distributed via web download

Comments