MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3d1d6889d78f16a9a5f912a3e6d2461870ea2ae282a3990146439198cfa20e54. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3d1d6889d78f16a9a5f912a3e6d2461870ea2ae282a3990146439198cfa20e54
SHA3-384 hash: f07b4ed9ec9fee691edb67576f09f533c23830a54d8cb27c4a427c88f6aadb3281363d9eaa62b5a89e56912334113ca6
SHA1 hash: 2f2da349c6d114d86ad0faf1a144f3edc3549763
MD5 hash: 4af11a08a44a152c63f554c0359598c1
humanhash: chicken-may-venus-eight
File name:31agosto.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:386'136 bytes
First seen:2025-09-19 06:30:38 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 96:BiKj665qp6ldI/+J02beBD7n07roBcpflKqJo1SAX990vH99LYtH99m99A:BZ/wsfqBD7KBpfjmdv
TLSH T1FD842AAB698280F01DBA4BDA06413512479F7A7537777D8401C3CC8A3E7BAE0B5B1D6B
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 :
67
Origin country :
SE SE
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/28255/
Detection(s):
SecuriteInfo.com.Script.SNH-gen.43417284.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68ccf8f3246a2631bd30f607
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 guloader obfuscated powershell
Link:
https://www.filescan.io/uploads/68ccf94b254431b688d49575/reports/fcf4bad6-e60d-4925-bcdd-938eb60b1b6b/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/3d1d6889d78f16a9a5f912a3e6d2461870ea2ae282a3990146439198cfa20e54
Verdict:
Malicious
File Type:
vbs
First seen:
2025-09-18T20:57:00Z UTC
Last seen:
2025-09-18T20:57:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/3d1d6889d78f16a9a5f912a3e6d2461870ea2ae282a3990146439198cfa20e54/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1780507
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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 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)
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: 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
VBScript performs obfuscated calls to suspicious functions
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1780507 Sample: 31agosto.vbs Startdate: 19/09/2025 Architecture: WINDOWS Score: 100 41 remdefrem.duckdns.org 2->41 43 dpaste.com 2->43 45 5 other IPs or domains 2->45 55 Suricata IDS alerts for network traffic 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 65 15 other signatures 2->65 10 wscript.exe 1 2->10         started        signatures3 61 Uses dynamic DNS services 41->61 63 Connects to a pastebin service (likely for C&C) 43->63 process4 signatures5 71 VBScript performs obfuscated calls to suspicious functions 10->71 73 Suspicious powershell command line found 10->73 75 Wscript starts Powershell (via cmd or directly) 10->75 77 2 other signatures 10->77 13 powershell.exe 7 10->13         started        process6 signatures7 91 Suspicious powershell command line found 13->91 93 Encrypted powershell cmdline option found 13->93 95 Bypasses PowerShell execution policy 13->95 97 Found suspicious powershell code related to unpacking or dynamic code loading 13->97 16 powershell.exe 14 17 13->16         started        20 conhost.exe 13->20         started        process8 dnsIp9 39 webapp-837091.pythonanywhere.com 35.173.69.207, 443, 49687 AMAZON-AESUS United States 16->39 35 C:\Users\user\AppData\Local\Temp\DvVbs.ps1, Unicode 16->35 dropped 22 powershell.exe 11 16->22         started        file10 process11 dnsIp12 47 dpaste.org 104.20.36.119, 443, 49688 CLOUDFLARENETUS United States 22->47 67 Writes to foreign memory regions 22->67 69 Injects a PE file into a foreign processes 22->69 26 MSBuild.exe 22->26         started        29 MSBuild.exe 4 15 22->29         started        33 MSBuild.exe 22->33         started        signatures13 process14 dnsIp15 79 Contains functionality to bypass UAC (CMSTPLUA) 26->79 81 Contains functionality to determine the online IP of the system 26->81 83 Contains functionalty to change the wallpaper 26->83 89 3 other signatures 26->89 49 remdefrem.duckdns.org 186.169.82.76, 2024, 49690 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 29->49 51 api.ipify.org 104.26.13.205, 443, 49692 CLOUDFLARENETUS United States 29->51 53 api.findip.net 172.67.214.3, 443, 49695 CLOUDFLARENETUS United States 29->53 37 C:\ProgramData\remcos\logs.dat, data 29->37 dropped 85 Detected Remcos RAT 29->85 87 Installs a global keyboard hook 29->87 file16 signatures17
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/3d1d6889d78f16a9a5f912a3e6d2461870ea2ae282a3990146439198cfa20e54
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3d1d6889d78f16a9a5f912a3e6d2461870ea2ae282a3990146439198cfa20e54/
Threat name:
Win32.Dropper.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-09-18 23:13:52 UTC
File Type:
Text (VBS)
AV detection:
1 of 36 (2.78%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=huowrcoxr4lktjpzckr6nusgdbyoukxcqkrzsakgioizrt5cbzka._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos discovery execution rat
Link:
https://tria.ge/reports/250919-hbkreawxgt/
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
Looks up external IP address via web service
Checks computer location settings
Badlisted process makes network request
Remcos
Remcos family
Malware Config
C2 Extraction:
@remdefP.duckdns.org:2024
Dropper Extraction:
https://dpaste.com/66QJ5LZEE.txt
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/3d1d6889d78f16a9a5f912a3e6d2461870ea2ae282a3990146439198cfa20e54

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 3d1d6889d78f16a9a5f912a3e6d2461870ea2ae282a3990146439198cfa20e54

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3626691/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3626693/
  
URLhaus
https://urlhaus.abuse.ch/url/3626699/
Cape
Cape
https://www.capesandbox.com/analysis/28255/

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