MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b5736a59dfdb009c5a92592f367a939aae689097eb1ecff6c02f2cacc09da66d. 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: 11
| SHA256 hash: | b5736a59dfdb009c5a92592f367a939aae689097eb1ecff6c02f2cacc09da66d |
|---|---|
| SHA3-384 hash: | 4404c80c7fc179bfbb6be81fd8a8f350d1d51578e0766c6fa104d3357ba52db7aa17ad57a5a8d1dff133bb04ada475f6 |
| SHA1 hash: | 7a76f7d58b6ad89900609cfd9e3169a22a5d693a |
| MD5 hash: | e3e8865e473c66e8713044e263501cad |
| humanhash: | july-xray-august-wolfram |
| File name: | ORDEN DE COMPRA 34389.js |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 4'405'073 bytes |
| First seen: | 2025-12-25 14:29:53 UTC |
| Last seen: | Never |
| File type: |  js |
| MIME type: | text/plain |
| ssdeep | 3072:GIav47Qnu30yAvYYdms1CjDvZsYIfERTZCq7WKKKKKKKKKKKKKKKKKKKKKKKKKKM:3 |
| Threatray | 1'967 similar samples on MalwareBazaar |
| TLSH | T15F1615B22E1F08605B5E4BCFDD05657AF95330569CEB46B7F23060DC9B2C22DA251AF2 |
| Magika | javascript |
| Reporter |  abuse_ch |
| Tags: | js RemcosRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
167
Origin country :
SEVendor Threat Intelligence
No detections
Verdict:
Clean
Score:
99.9%
Tags:
n/a
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm base64 base64 evasive fingerprint obfuscated obfuscated overlay powershell repaired
Verdict:
Malicious
Labled as:
JS/TrojanDownloader.Agent
Verdict:
Malicious
File Type:
js
First seen:
2025-12-23T12:18:00Z UTC
Last seen:
2025-12-27T12:39:00Z UTC
Hits:
~100
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic
Result
Threat name:
Remcos
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
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
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: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Reflective Assembly Load
Sigma detected: Remcos
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Unusual module load detection (module proxying)
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 decode and execute
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
1 match(es)
Detection:
remcos
Verdict:
Malicious
Threat:
Family.REMCOSRAT
Threat name:
Script-JS.Backdoor.Remcos
Status:
Suspicious
First seen:
2025-12-25 14:30:34 UTC
File Type:
Binary
AV detection:
10 of 24 (41.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'957 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
execution persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
Command and Scripting Interpreter: JavaScript
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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