MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 747546fb5b8020b4a3422ed52d40dc2a7291e88e0c3c3da94fbf72258d538747. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 747546fb5b8020b4a3422ed52d40dc2a7291e88e0c3c3da94fbf72258d538747
SHA3-384 hash: e15453b4d9b166f72b3e498c85871fa3d33cb1ec6f60c30973d9f72c446783b0212071668ced44c1ef399cc0079eb02d
SHA1 hash: 61622713060bbb424cc599d80cc56dd36bd19d01
MD5 hash: ca499e8176fb639a885f2bf690f49210
humanhash: whiskey-maine-carolina-river
File name:CopilotDrivers.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'373'284 bytes
First seen:2025-08-15 15:51:02 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:drPssUMSIiO9mrPssUMSIiO9zrPssUMSIiO9h:iWpBWp8Wph
TLSH T1F1B5A1112AFEC219F2F61E6D69B433964A6ABFF67979D1D80170110C5CE2A848CF4B73
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika mp3
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=689f579b8fd55a79c5274147
Tags:
xtreme shell sage
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/689f5793a4bdac9f5b98af05/reports/3d5f3371-2895-4940-8c2f-3ba256296e1f/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/747546fb5b8020b4a3422ed52d40dc2a7291e88e0c3c3da94fbf72258d538747
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1758044
Signature
Adds a directory exclusion to Windows Defender
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
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
Detected Remcos RAT
Encrypted powershell cmdline option found
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Decrypt And Execute Base64 Data
Sigma detected: Remcos
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
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 Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1758044 Sample: CopilotDrivers.js Startdate: 15/08/2025 Architecture: WINDOWS Score: 100 57 pt.textbin.net 2->57 59 systemcopilotdriver.ydns.eu 2->59 61 2 other IPs or domains 2->61 73 Suricata IDS alerts for network traffic 2->73 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 81 15 other signatures 2->81 11 wscript.exe 1 1 2->11         started        signatures3 79 Connects to a pastebin service (likely for C&C) 57->79 process4 signatures5 99 JScript performs obfuscated calls to suspicious functions 11->99 101 Suspicious powershell command line found 11->101 103 Wscript starts Powershell (via cmd or directly) 11->103 105 3 other signatures 11->105 14 powershell.exe 14 16 11->14         started        process6 dnsIp7 71 pt.textbin.net 50.30.32.55, 443, 49697, 49703 AS-30083-GO-DADDY-COM-LLCUS United States 14->71 117 Suspicious powershell command line found 14->117 119 Encrypted powershell cmdline option found 14->119 121 Adds a directory exclusion to Windows Defender 14->121 123 Found suspicious powershell code related to unpacking or dynamic code loading 14->123 18 powershell.exe 18 14->18         started        22 conhost.exe 14->22         started        signatures8 process9 dnsIp10 63 andrefelipedonascime1753562407700.0461178.meusitehostgator.com.br 104.18.42.56, 443, 49699, 49702 CLOUDFLARENETUS United States 18->63 53 C:\Users\user\AppData\Local\...\dmcgt_01.ps1, Unicode 18->53 dropped 24 powershell.exe 23 18->24         started        file11 process12 signatures13 95 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 24->95 97 Adds a directory exclusion to Windows Defender 24->97 27 powershell.exe 24->27         started        30 cmd.exe 1 24->30         started        32 powershell.exe 23 24->32         started        34 4 other processes 24->34 process14 signatures15 107 Writes to foreign memory regions 27->107 109 Injects a PE file into a foreign processes 27->109 36 MSBuild.exe 27->36         started        39 MSBuild.exe 27->39         started        43 MSBuild.exe 27->43         started        111 Uses ping.exe to sleep 30->111 113 Uses ping.exe to check the status of other devices and networks 30->113 45 PING.EXE 1 30->45         started        115 Loading BitLocker PowerShell Module 32->115 47 WmiPrvSE.exe 32->47         started        49 PING.EXE 1 34->49         started        51 PING.EXE 1 34->51         started        process16 dnsIp17 83 Contains functionality to bypass UAC (CMSTPLUA) 36->83 85 Contains functionalty to change the wallpaper 36->85 87 Contains functionality to steal Chrome passwords or cookies 36->87 93 2 other signatures 36->93 65 systemcopilotdriver.ydns.eu 181.206.158.190, 3001, 49704, 49706 ColombiaMovilCO Colombia 39->65 67 geoplugin.net 178.237.33.50, 49705, 80 ATOM86-ASATOM86NL Netherlands 39->67 55 C:\ProgramData\remcos\registros.dat, data 39->55 dropped 89 Detected Remcos RAT 39->89 91 Installs a global keyboard hook 39->91 69 127.0.0.1 unknown unknown 45->69 file18 signatures19
Score:
79%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/747546fb5b8020b4a3422ed52d40dc2a7291e88e0c3c3da94fbf72258d538747
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/747546fb5b8020b4a3422ed52d40dc2a7291e88e0c3c3da94fbf72258d538747/
Threat name:
Script-JS.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-08-15 15:51:40 UTC
File Type:
Text
AV detection:
6 of 38 (15.79%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=or2un623qaqlji2cf3ks2qg4fjzjd2eobq6d3kkpx5zcldktq5dq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
defense_evasion discovery execution
Link:
https://tria.ge/reports/250815-tas7yaymv8/
Behaviour
Enumerates system info in registry
Modifies data under HKEY_USERS
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Hide Artifacts: Ignore Process Interrupts
Indicator Removal: File Deletion
Network Share Discovery
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Modifies trusted root certificate store through registry
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/747546fb5b8020b4a3422ed52d40dc2a7291e88e0c3c3da94fbf72258d538747

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 747546fb5b8020b4a3422ed52d40dc2a7291e88e0c3c3da94fbf72258d538747

(this sample)

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

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