MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f0877cdcc9b0b0c6837fe90e9f8d2492f36471cb57a477e24b57530d16b5ec9. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments

SHA256 hash: 6f0877cdcc9b0b0c6837fe90e9f8d2492f36471cb57a477e24b57530d16b5ec9
SHA3-384 hash: a6a57a5504192292a86acaa9c2c470a4365d6c5265f7e70d09eba99870521addb2309c3e517616e8d543e6c4f5f20075
SHA1 hash: 6b8f998bdb03a340d04143653a6c3e78fe4d02b2
MD5 hash: a50bec9be8e044ef7d5cbed74997a1b0
humanhash: mississippi-robin-purple-wolfram
File name:1septiembre.vbs
Download: download sample
Signature RemcosRAT
File size:3'445'206 bytes
First seen:2025-09-06 06:56:08 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 192:2//O///////////////////////////////////////////////////////////0:otatqVTtbPpFAy6mmmmmmmmmmmmmmI
Threatray 1'473 similar samples on MalwareBazaar
TLSH T1CFF5A6C423F97464B4F3AF1B7BB92928BA3B3D4D6D79B22C054185916E72A01CE71723
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika vba
Reporter abuse_ch
Tags:RemcosRAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
56
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
File Type:
text
First seen:
2025-09-06T03:14:00Z UTC
Last seen:
2025-09-06T03:14:00Z UTC
Hits:
~10
Detections:
Trojan-Downloader.JS.SLoad.sb Trojan.Win32.Agent.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
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
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: Potential PowerShell Command Line Obfuscation
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: Suspicious Script Execution From Temp Folder
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1772268 Sample: 1septiembre.vbs Startdate: 06/09/2025 Architecture: WINDOWS Score: 100 38 rem31rem.duckdns.org 2->38 40 textbin.net 2->40 42 4 other IPs or domains 2->42 64 Suricata IDS alerts for network traffic 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 74 17 other signatures 2->74 10 wscript.exe 1 2->10         started        13 svchost.exe 1 1 2->13         started        signatures3 70 Uses dynamic DNS services 38->70 72 Connects to a pastebin service (likely for C&C) 40->72 process4 dnsIp5 76 Suspicious powershell command line found 10->76 78 Wscript starts Powershell (via cmd or directly) 10->78 80 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->80 82 Suspicious execution chain found 10->82 16 powershell.exe 7 10->16         started        50 127.0.0.1 unknown unknown 13->50 signatures6 process7 signatures8 56 Suspicious powershell command line found 16->56 58 Encrypted powershell cmdline option found 16->58 60 Bypasses PowerShell execution policy 16->60 62 Found suspicious powershell code related to unpacking or dynamic code loading 16->62 19 powershell.exe 14 18 16->19         started        23 conhost.exe 16->23         started        process9 dnsIp10 44 dpaste.org 104.20.36.119, 443, 49682, 49684 CLOUDFLARENETUS United States 19->44 46 textbin.net 50.30.32.55, 443, 49681 AS-30083-GO-DADDY-COM-LLCUS United States 19->46 34 C:\Users\user\AppData\Local\Temp\dYWvm.ps1, Unicode 19->34 dropped 25 powershell.exe 11 19->25         started        file11 process12 dnsIp13 48 pastebin.com 172.66.171.73, 443, 49683 CLOUDFLARENETUS United States 25->48 84 Writes to foreign memory regions 25->84 86 Injects a PE file into a foreign processes 25->86 29 MSBuild.exe 4 8 25->29         started        signatures14 process15 dnsIp16 52 rem31rem.duckdns.org 186.169.40.245, 2023, 49686 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 29->52 54 geoplugin.net 178.237.33.50, 49687, 80 ATOM86-ASATOM86NL Netherlands 29->54 36 C:\ProgramData\remcos\logs.dat, data 29->36 dropped 88 Contains functionality to bypass UAC (CMSTPLUA) 29->88 90 Detected Remcos RAT 29->90 92 Contains functionalty to change the wallpaper 29->92 94 4 other signatures 29->94 file17 signatures18
Verdict:
Malware
YARA:
2 match(es)
Tags:
DeObfuscated Obfuscated PowerShell T1059.005 VBS Execute Sub-Script VBScript WScript.Shell
Threat name:
Script-WScript.Trojan.Honolulu
Status:
Malicious
First seen:
2025-09-06 04:58:46 UTC
File Type:
Text (VBS)
AV detection:
7 of 38 (18.42%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost 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
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Badlisted process makes network request
Remcos
Remcos family
Malware Config
C2 Extraction:
rem31rem.duckdns.org:2023
Dropper Extraction:
https://textbin.net/raw/xsi2eulwpw
Please note that we are no longer able to provide a coverage score for Virus Total.

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

RemcosRAT

Visual Basic Script (vbs) vbs 6f0877cdcc9b0b0c6837fe90e9f8d2492f36471cb57a477e24b57530d16b5ec9

(this sample)

  
Delivery method
Distributed via web download

Comments