MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9a9cd60f80414c625cf3294b98481957db92f8b2a78e612d1284ac0c91870cb3. 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 22 File information Comments

SHA256 hash: 9a9cd60f80414c625cf3294b98481957db92f8b2a78e612d1284ac0c91870cb3
SHA3-384 hash: 8c261c560c5def07035e399add9c150add7ac48bc31f15e4516db6329dab9841014ae6f0bc05c738f9fd8739c5066917
SHA1 hash: 1df0cc741ad443a1e2305023be1e3b3754ec1aec
MD5 hash: 90b2de89779a544cc873cd37619ad30f
humanhash: december-georgia-iowa-november
File name:CopilotDriver.js
Download: download sample
Signature RemcosRAT
File size:1'237'421 bytes
First seen:2026-03-12 15:23:46 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:SUYgDYAfSK/kDDHC8hyqctUQIBQpuhaumdnehKI1kquVGehwehJkfR/ha2VBSh6h:SSkD
TLSH T1A945D74D45B1C6E5958324D6DC60BEEBAF0D19E72BA98A7E3E4483CFC87D24422463F1
Magika javascript
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
172
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
92.5%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint obfuscated powershell repaired
Verdict:
Malicious
File Type:
js
Detections:
HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.Script.Generic Trojan-Downloader.Agent.HTTP.C&C Trojan.JS.SAgent.sb
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Creates processes via WMI
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: PowerShell Base64 Encoded IEX Cmdlet
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)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Gathering data
Threat name:
Script-JS.Trojan.Generic
Status:
Suspicious
First seen:
2026-03-12 15:24:20 UTC
File Type:
Binary
AV detection:
8 of 38 (21.05%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:tas1 defense_evasion discovery execution rat trojan
Behaviour
Modifies registry class
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Process spawned unexpected child process
Remcos
Remcos family
UAC bypass
Malware Config
C2 Extraction:
securityhealthservice.ydns.eu:3001
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
Rule name:Sus_All_Windows_PE_Malware
Author:DiegoAnalytics
Description:Detects Windows PE malware of all types, avoids non-executables like .html
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_921ef449
Author:Elastic Security
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Author:Matthew @ Embee_Research

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 9a9cd60f80414c625cf3294b98481957db92f8b2a78e612d1284ac0c91870cb3

(this sample)

  
Delivery method
Distributed via web download

Comments