MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 540ec378cbd516ca43ee050f1cde867abee50480e3b33bb216af9dd4b98cf1f4. 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: 15
| SHA256 hash: | 540ec378cbd516ca43ee050f1cde867abee50480e3b33bb216af9dd4b98cf1f4 |
|---|---|
| SHA3-384 hash: | 6a323594ffa406f15326c8a55d638293e0555f0ffdc7c1c0d52ed57f0b37180f9e2d854d84d5f19f5e86dd9868f2a6c9 |
| SHA1 hash: | f6428058e0d85c507d63acc949e653467b5d6eea |
| MD5 hash: | b62dc4e11fccd512f2f2f699e149d191 |
| humanhash: | cat-network-apart-saturn |
| File name: | 31agosto.vbs |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 7'254'974 bytes |
| First seen: | 2025-10-10 13:28:01 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 96:JxN6Kj95z5pVIbpde7XW5MPAS+e/D7C+R8xcXAlLYtw:JD9dObS7XW58ASXnCPc1w |
| Threatray | 1'590 similar samples on MalwareBazaar |
| TLSH | T1DD76108F2CEE80ED6DEC0441B6B3D39279DF3787168F36B462E8632E8644AD1857154E |
| TrID | 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1) 33.3% (.MP3) MP3 audio (1000/1) |
| Magika | txt |
| Reporter |  abuse_ch |
| Tags: | RemcosRAT vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
62
Origin country :
SEVendor Threat Intelligence
Detection:
n/a
Verdict:
Malicious
Score:
92.5%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
base64 obfuscated powershell
Verdict:
Malicious
Labled as:
GT:VB.Honolulu.1
Result
Verdict:
MALICIOUS
Verdict:
Malicious
File Type:
unknown
First seen:
2025-10-08T13:27:00Z UTC
Last seen:
2025-10-11T00:38:00Z UTC
Hits:
~10
Detections:
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
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to determine the online IP of the system
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
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: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
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)
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:
100%
Verdict:
Malware
File Type:
SCRIPT
Gathering data
Detection:
remcos
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Win32.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-10-08 16:23:14 UTC
File Type:
Text (VBS)
AV detection:
5 of 26 (19.23%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'580 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Badlisted process makes network request
Remcos
Remcos family
Malware Config
C2 Extraction:
@remdefP.duckdns.org:2024
Dropper Extraction:
https://firebasestorage.googleapis.com/v0/b/loloer3434.firebasestorage.app/o/ab23%2Fdllskyyyyyyyyyyyyyyy.txt?alt=media&token=ba6fc66c-551c-42b7-934c-808e6e48e247
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| 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
Delivery method
Distributed via web download
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