MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1. 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: f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1
SHA3-384 hash: ecb7cf1e6db46eab3ccf9bd72c7c2ccada78dca1e52f70c73a6e92a510d70969b0e06857c043d1be734e7d9f3134e040
SHA1 hash: b66caad011b0deb85005236d964ed814ebf4b69a
MD5 hash: 02e6f277ed7589c3348f55b468265b4e
humanhash: summer-whiskey-october-kansas
File name:CopilotDrivers.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:10'713'006 bytes
First seen:2025-11-04 08:24:03 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:jhlSA6Zi8hPzeG/hs7RvDFVU1SPD730bk/2FTBCs+xCUOo5ZVYiB:jhsA69/YDFVUk30bxFLs5ZR
TLSH T141B622DA73ED978D5D844CE570B92896B0D3A22A34794BD7E1E2F9CB302EC8CA55D430
Magika javascript
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6909b8969942f1282ecbe149
Tags:
obfuscate xtreme spawn
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
repaired
Link:
https://www.filescan.io/uploads/6909b9ee85b61a93a73380a7/reports/fda5a9aa-866e-4416-9295-201f68e23b91/overview
Verdict:
Suspicious
Labled as:
Generik.JXEBUIM trojan
Link:
https://www.hybrid-analysis.com/sample/f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1
Verdict:
Clean
File Type:
js
First seen:
2025-11-03T22:50:00Z UTC
Last seen:
2025-11-03T22:58:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1/results?tab=lookup
Result
Threat name:
Remcos, Caminho Loader
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1807515
Signature
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
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
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 Caminho Loader
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: 1807515 Sample: CopilotDrivers.js Startdate: 04/11/2025 Architecture: WINDOWS Score: 100 23 hostphpwindowsdriversappsos.duckdns.org 2->23 25 systemcopilotdriver.ydns.eu 2->25 27 7 other IPs or domains 2->27 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 51 10 other signatures 2->51 8 wscript.exe 1 2->8         started        signatures3 49 Uses dynamic DNS services 23->49 process4 signatures5 53 Suspicious powershell command line found 8->53 55 Wscript starts Powershell (via cmd or directly) 8->55 57 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->57 59 2 other signatures 8->59 11 powershell.exe 14 15 8->11         started        process6 dnsIp7 29 systemcopilotdriver.ydns.eu 181.206.158.190, 3001, 49697, 49698 ColombiaMovilCO Colombia 11->29 31 archive.org 207.241.224.2, 49695, 80 INTERNET-ARCHIVEUS United States 11->31 33 ia800606.us.archive.org 207.241.230.66, 49696, 80 INTERNET-ARCHIVEUS United States 11->33 61 Writes to foreign memory regions 11->61 63 Injects a PE file into a foreign processes 11->63 65 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->65 15 MSBuild.exe 4 2 11->15         started        19 conhost.exe 11->19         started        signatures8 process9 file10 21 C:\ProgramData\remcos\registros.dat, data 15->21 dropped 35 Contains functionality to bypass UAC (CMSTPLUA) 15->35 37 Detected Remcos RAT 15->37 39 Contains functionalty to change the wallpaper 15->39 41 4 other signatures 15->41 signatures11
Score:
96%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6iui2s2dxrmg3bqx4sfnojm6maebtzgfsb7eap5owbudqcv7gwqq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos discovery execution rat
Link:
https://tria.ge/reports/251104-kek8fsay9b/
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:
http://archive.org/download/optimized_msi_20251026/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/f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1

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 f2288d4b43bc586d8617e48ad7259e600819e4c5907e403faeb068380abf35a1

(this sample)

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

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