MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 89f379f3c244456381a5ac1ffa1530471ef70db4e1a2dd91068ffbc095273dd8. 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: 13
| SHA256 hash: | 89f379f3c244456381a5ac1ffa1530471ef70db4e1a2dd91068ffbc095273dd8 |
|---|---|
| SHA3-384 hash: | a84bfbf672304dedad6564500e96e09f58a62b0cdca578f8daf547904a5efabbf9a0a9bbe7792caff355fa7685117feb |
| SHA1 hash: | 56f845784066b71eea31f736c0632b5c01cda649 |
| MD5 hash: | bd623574204d3ee8c509c6a014e04907 |
| humanhash: | friend-avocado-hotel-uncle |
| File name: | Update.vbs |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 85'673 bytes |
| First seen: | 2025-08-23 09:29:59 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 768:SviIbofhpmZ+sOgioIGaneEoHtmblkBOVG9cZw:Svimv+sOgNxdHmbcOw9cZw |
| Threatray | 1'365 similar samples on MalwareBazaar |
| TLSH | T13A83F25BD2754723CA0C694BAA506FF3E4E785AD0AFC9F3197C0952193BDE488DBC428 |
| Magika | vba |
| Reporter |  abuse_ch |
| Tags: | RemcosRAT vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
60
Origin country :
SEVendor Threat Intelligence
Detection:
n/a
Verdict:
Malicious
Score:
97.4%
Tags:
obfuscate xtreme spawn
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Verdict:
Malicious
File Type:
vbs
Detections:
HEUR:Trojan.Script.Generic
Result
Threat name:
Remcos
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionalty to change the wallpaper
Creates processes via WMI
Detected Remcos RAT
Found malware configuration
Found Tor onion address
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)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
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 Generic Downloader
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Verdict:
Malware
YARA:
1 match(es)
Tags:
Batch Command DeObfuscated PowerShell PowerShell Call Scripting.FileSystemObject SMTPControl.SMTP VBScript
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Script-WScript.Backdoor.Remcos
Status:
Malicious
First seen:
2025-08-23 09:31:17 UTC
File Type:
Text (VBS)
AV detection:
9 of 24 (37.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'355 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos defense_evasion discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Modifies trusted root certificate store through registry
Process spawned unexpected child process
Remcos
Remcos family
Malware Config
C2 Extraction:
pasar09enero.duckdns.org:3000
Dropper Extraction:
https://archive.org/download/optimized_msi_20250821/optimized_MSI.png
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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