MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4df9ade8a5acaa721c0228465c9a1f53640594854a5dc68d18e0c42e98abd455. 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


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4df9ade8a5acaa721c0228465c9a1f53640594854a5dc68d18e0c42e98abd455
SHA3-384 hash: bb41611c314f38cec6c70d57bbf00dc9f6bb290f0ce4f856763e7b242dac6bfd8434ec47ad674557b5676331cc120ee1
SHA1 hash: 4a7b025a71b86585444d42ce283cda6af3768ac8
MD5 hash: 7b859b2d3faef05693b17987ba4f32bb
humanhash: cardinal-wyoming-connecticut-nuts
File name:task.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:14'756'214 bytes
First seen:2026-06-10 16:28:05 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/csv
ssdeep 768:tdI/TbGugkes9MPfLlOE6kU8smVBkhVrgPFuBFyGVXJaWdBPvcb89gkoraa7WKpq:+
TLSH T12FE6C423E57B4046F19A9C13401BB1FBB4633569A8D4ED899AB0079619FF7A06F1BF03
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika vba
Reporter abuse_ch
Tags:RAT RemcosRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
120
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a2991dfa15110463ee48996
Tags:
xtreme shell sage
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6a2991cb1f652d686575d19f/reports/0320320c-5794-4aa8-8376-de8fadadb765/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/4df9ade8a5acaa721c0228465c9a1f53640594854a5dc68d18e0c42e98abd455
Verdict:
Malicious
File Type:
text
First seen:
2026-06-10T13:41:00Z UTC
Last seen:
2026-06-11T22:19:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.VBS.SAgent.gen
Link:
https://opentip.kaspersky.com/4df9ade8a5acaa721c0228465c9a1f53640594854a5dc68d18e0c42e98abd455/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1926053
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Behaviour
Behavior Graph:
Download SVG
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4df9ade8a5acaa721c0228465c9a1f53640594854a5dc68d18e0c42e98abd455/
Verdict:
Malicious
Threat:
Family.REMCOSRAT
Link:
https://tip.neiki.dev/file/4df9ade8a5acaa721c0228465c9a1f53640594854a5dc68d18e0c42e98abd455
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-06-10 16:36:46 UTC
File Type:
Binary
AV detection:
10 of 36 (27.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jx4232ffvsvhehacfbdfzgq7knsalfefjjo4ndiy4dcc5gfl2rkq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/260610-t13t3adt61/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
.NET Reactor proctector
Checks computer location settings
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:
Legit
Score:
0.21
Link:
https://yomi.yoroi.company/submissions/4df9ade8a5acaa721c0228465c9a1f53640594854a5dc68d18e0c42e98abd455

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

Visual Basic Script (vbs) vbs 4df9ade8a5acaa721c0228465c9a1f53640594854a5dc68d18e0c42e98abd455

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3609414/
  
Delivery method
Distributed via web download

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