MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfdc2ae6a13e3aec697ff5535644d20bad1bae878d39ba2f56af905a8ab039d4. 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: 8

Intelligence 8 IOCs YARA 4 File information Comments

SHA256 hash:	cfdc2ae6a13e3aec697ff5535644d20bad1bae878d39ba2f56af905a8ab039d4
SHA3-384 hash:	6a5c7514fb84a0410adbab6065e0df8cdcb98c230b17d901954b2e1e169a365814ef78b3ed54e704f8c30af7a06c941f
SHA1 hash:	c054a1129139a5e39a5f538cc1b5fef96c97f605
MD5 hash:	dc1c1f5f8a43d0a45e221deabf3c4851
humanhash:	music-lithium-sad-two
File name:	CopilotDriver.vbs
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	3'621'637 bytes
First seen:	2025-06-18 06:47:54 UTC
Last seen:	Never
File type:	vbs
MIME type:	text/plain
ssdeep	49152:/IzO8vJFDi3+IrBLXEeDpFj0Tos8mSZCYdgD6M1zb9:E
TLSH	T148F5E0CF7D0E9694885222FA68258552F2CC87E67301DBB2FD7CC49173958B8D92B3D2
Magika	vba
Reporter	abuse_ch
Tags:	181-206-158-190 RemcosRAT vbs

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/9979/

Gathering data

Verdict:

Suspicious

Labled as:

Trojan.Script.Donoff

Link:

https://www.hybrid-analysis.com/sample/cfdc2ae6a13e3aec697ff5535644d20bad1bae878d39ba2f56af905a8ab039d4

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1717143

Signature

Bypasses PowerShell execution policy

C2 URLs / IPs found in malware configuration

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

Contains functionality to bypass UAC (CMSTPLUA)

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

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: Malicious Base64 Encoded PowerShell Keywords in Command Lines

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: PowerShell Base64 Encoded Invoke Keyword

Sigma detected: Remcos

Sigma detected: Script Initiated Connection to Non-Local Network

Sigma detected: Suspicious PowerShell Parameter Substring

Sigma detected: WScript or CScript Dropper

Suricata IDS alerts for network traffic

Suspicious execution chain found

Suspicious powershell command line found

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

Uses dynamic DNS services

Writes to foreign memory regions

Wscript starts Powershell (via cmd or directly)

Yara detected Powershell decode and execute

Yara detected Powershell download and execute

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Behaviour

Behavior Graph:

Download SVG

Score:

53%

Verdict:

Susipicious

File Type:

SCRIPT

Link:

https://malprob.io/report/cfdc2ae6a13e3aec697ff5535644d20bad1bae878d39ba2f56af905a8ab039d4

Verdict:

inconclusive

YARA:

2 match(es)

Link:

https://app.malva.re/file/dc1c1f5f8a43d0a45e221deabf3c4851

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cfdc2ae6a13e3aec697ff5535644d20bad1bae878d39ba2f56af905a8ab039d4/

Threat name:

Script-WScript.Spyware.AsyncRAT

Status:

Malicious

First seen:

2025-06-18 06:50:52 UTC

File Type:

Text (VBS)

AV detection:

10 of 38 (26.32%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z7ocvzvbhy5oy2l76vjvmrgsbowrxluhru43ul2wv6ifvcvqhhka._file

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:tp $ discovery execution rat

Link:

https://tria.ge/reports/250618-hlxtqayse1/

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:

actwindowdsdriver.duckdns.org:2404

Dropper Extraction:

https://cdn.tagbox.io/assets/6850bda459dffb0011a76b02/a3edcbb7-06ae-4329-bf33-096c01a0636d---wp4096799-lost-in-space-wallpapers.jpg

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

Threat name:

Malicious File

Score:

0.88

Link:

https://yomi.yoroi.company/submissions/cfdc2ae6a13e3aec697ff5535644d20bad1bae878d39ba2f56af905a8ab039d4

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)