MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c456a7c35a2a9d3a4a69e51adda6eb1aa3e35369e11e1ec07988379c1ebb8c2. 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 4 File information Comments

SHA256 hash:	3c456a7c35a2a9d3a4a69e51adda6eb1aa3e35369e11e1ec07988379c1ebb8c2
SHA3-384 hash:	cee1ead71d97051889a1e39b2a448120159fbb1021aa483b2fb784213ec074a0952ed345202326495685d4bd4d82e848
SHA1 hash:	6a1a6d1dee227c32d7fc084dc8a479bf3c4fea02
MD5 hash:	ba216e95a900afc7df9374eeb6d974ee
humanhash:	mango-ink-beryllium-double
File name:	CopilotDriver.vbs
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	3'348'778 bytes
First seen:	2025-06-17 06:05:16 UTC
Last seen:	Never
File type:	vbs
MIME type:	text/plain
ssdeep	24576:RV2nxqVwgTlnOJDhHK5xvMY2AiFOybdwKuyk8qGygocorLBhzbzNXTEWSOFHTiva:/2o9xnRINxShHFN3hTiTAUaTmJa
TLSH	T1ACF5F0CFBD0D9A84885232FA68158592F2CC82E67301D772FD7CC5A173958B8D96B3D2
Magika	vba
Reporter	abuse_ch
Tags:	RemcosRAT vbs

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/9785/

Gathering data

Verdict:

Suspicious

Labled as:

Trojan.Script.Donoff

Link:

https://www.hybrid-analysis.com/sample/3c456a7c35a2a9d3a4a69e51adda6eb1aa3e35369e11e1ec07988379c1ebb8c2

Result

Threat name:

n/a

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1716139

Signature

Bypasses PowerShell execution policy

Connects to a pastebin service (likely for C&C)

Found suspicious powershell code related to unpacking or dynamic code loading

Joe Sandbox ML detected suspicious sample

Multi AV Scanner detection for submitted file

Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)

Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)

Sigma detected: Base64 Encoded PowerShell Command Detected

Sigma detected: Malicious Base64 Encoded PowerShell Keywords in Command Lines

Sigma detected: Net WebClient Casing Anomalies

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: PowerShell Base64 Encoded Reflective Assembly Load

Sigma detected: Script Initiated Connection to Non-Local Network

Sigma detected: Suspicious PowerShell Parameter Substring

Sigma detected: WScript or CScript Dropper

Suspicious execution chain found

Suspicious powershell command line found

System process connects to network (likely due to code injection or exploit)

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Wscript starts Powershell (via cmd or directly)

Yara detected Powershell decode and execute

Yara detected Powershell download and execute

Yara detected UAC Bypass using CMSTP

Behaviour

Behavior Graph:

Download SVG

Score:

72%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/3c456a7c35a2a9d3a4a69e51adda6eb1aa3e35369e11e1ec07988379c1ebb8c2

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3c456a7c35a2a9d3a4a69e51adda6eb1aa3e35369e11e1ec07988379c1ebb8c2/

Verdict:

Malicious

Link:

https://tip.neiki.dev/file/3c456a7c35a2a9d3a4a69e51adda6eb1aa3e35369e11e1ec07988379c1ebb8c2

Threat name:

Script-WScript.Spyware.AsyncRAT

Status:

Malicious

First seen:

2025-06-17 06:05:53 UTC

File Type:

Text (VBS)

AV detection:

7 of 24 (29.17%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=hrcwu7bvuku5hjfgtzi23wtowgvd4njwtyi6d3ahtcbxtqplxdba._file

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:tar1+ discovery execution rat

Link:

https://tria.ge/reports/250617-gtkcxswxht/

Behaviour

Script User-Agent

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

Checks computer location settings

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Remcos

Remcos family

Malware Config

C2 Extraction:

actwindowdsdrivers.duckdns.org:2404

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/3c456a7c35a2a9d3a4a69e51adda6eb1aa3e35369e11e1ec07988379c1ebb8c2

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:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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)