MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 644b6c7e709235141bd95c6f27d59f9775e5a4e9a8991e93e54451c0b6d76e3e. 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: 9
| SHA256 hash: | 644b6c7e709235141bd95c6f27d59f9775e5a4e9a8991e93e54451c0b6d76e3e |
|---|---|
| SHA3-384 hash: | 16302b0948597ed80bfdd0f6b62fcd41bbdd4eb2db7bce36770bd3c0ee0aab69fb579abf4698adb6cbc7020cda1b4db4 |
| SHA1 hash: | 99a07d45f0b64e51f4bdcb386f91ea5f35443d2e |
| MD5 hash: | 332d9ebb9a94b203c7f7cc9ffe7d193d |
| humanhash: | zebra-asparagus-idaho-alabama |
| File name: | FedEx-AWB Documents.js |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 5'351'012 bytes |
| First seen: | 2026-09-24 13:33:52 UTC |
| Last seen: | Never |
| File type: |  js |
| MIME type: | text/plain |
| ssdeep | 384:5q3xW8xrfmmJzbzmyC0BJrm58tir8kGhmNGDANo7ekuhY55/zIZCtqThw27XK9Hi:QuXHx |
| TLSH | T1C2464EAA94A7FEC1F78F4BBDCC366901A3A5DEC403E68514C8CEB6130689438167DDE5 |
| TrID | 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1) 33.3% (.MP3) MP3 audio (1000/1) |
| Magika | vba |
| Reporter |  abuse_ch |
| Tags: | FedEx js RemcosRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
174
Origin country :
SEVendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
masquerade repaired
Verdict:
Malicious
Labled as:
JS.Loader.1.Generic
Verdict:
Malicious
File Type:
js
First seen:
2026-09-24T02:53:00Z UTC
Last seen:
2026-09-26T11:31:00Z UTC
Hits:
~100
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject threads in other processes
Contains functionality to steal Internet Explorer form passwords
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Detected Remcos RAT
Drops script or batch files to the startup folder
Found evasive API chain checking for user administrative privileges
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file registry)
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 MSIL Injector
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Gathering data
Threat name:
Script-JS.Trojan.Generic
Status:
Suspicious
First seen:
2026-09-24 08:52:07 UTC
File Type:
Binary
AV detection:
9 of 23 (39.13%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
Remcos
Result
Malware family:
n/a
Score:
10/10
Tags:
execution persistence privilege_escalation
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Creates a file in the Startup directory
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:
0.51
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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