MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aaab431dab3880838f6be9e7eec86c82b0631029d4f804e91a39cd46596ca983. 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 2 File information Comments

SHA256 hash:	aaab431dab3880838f6be9e7eec86c82b0631029d4f804e91a39cd46596ca983
SHA3-384 hash:	7a62bba6e825c07f89d0841ad3f391190143d9ff6f2045a44a57cf32959e4b530ba054675e694e57628d8de05f713bc4
SHA1 hash:	073e68a21da65cb0f660fec33ad7373b3136149b
MD5 hash:	497915b6027f53ba98816b4455c70dd1
humanhash:	south-carpet-comet-quiet
File name:	Update.vbs
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	875'961 bytes
First seen:	2025-06-30 13:55:33 UTC
Last seen:	Never
File type:	vbs
MIME type:	text/plain
ssdeep	12288:nRH6YbbTqVLVs/M2TT+Ptx7D91o4xA9RH6YbbTqVLVs/M2TT+Ptx7D91o4x9:nhJGVLX2TTM7DZYhJGVLX2TTM7DZn
Threatray	1'188 similar samples on MalwareBazaar
TLSH	T13515E0DA7E0966C8484232FA68148552F2DC83D2B309DB72FD7CC56573918F8E97B392
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/11660/

Detection(s):

SecuriteInfo.com.Script.SNH-gen.17367.20286.UNOFFICIAL

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6862978a37c343677947cae4

Tags:

obfuscate xtreme spawn

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

obfuscated

Link:

https://www.filescan.io/uploads/68629792714e106cecb7cdb2/reports/d32d051d-14a2-45c9-93a1-22bdc4d258aa/overview

Verdict:

Malicious

Labled as:

GT:VB.Honolulu.1

Link:

https://www.hybrid-analysis.com/sample/aaab431dab3880838f6be9e7eec86c82b0631029d4f804e91a39cd46596ca983

Result

Threat name:

n/a

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1725646

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

Found Tor onion address

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Potential malicious VBS script found (has network functionality)

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: 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)

VBScript performs obfuscated calls to suspicious functions

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

Behaviour

Behavior Graph:

Download SVG

Score:

74%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/aaab431dab3880838f6be9e7eec86c82b0631029d4f804e91a39cd46596ca983

Verdict:

Malware

YARA:

4 match(es)

Tags:

DeObfuscated Html Obfuscated Scripting.FileSystemObject T1059.005 VBScript VBScripting.Includer WScript.Shell

Link:

https://app.malva.re/file/497915b6027f53ba98816b4455c70dd1

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/aaab431dab3880838f6be9e7eec86c82b0631029d4f804e91a39cd46596ca983/

Threat name:

Script-WScript.Trojan.Honolulu

Status:

Malicious

First seen:

2025-06-29 11:01:08 UTC

File Type:

Text (VBS)

AV detection:

4 of 36 (11.11%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=vkvughnlhcaihd3l5ht65sdmqkyggebj2t4aj2i2hhgumwlmvgbq._file

Verdict:

malicious

Label(s):

remcos

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:tarrestaldo discovery execution rat

Link:

https://tria.ge/reports/250630-q8vxmsck9y/

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

Checks computer location settings

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Remcos

Remcos family

Malware Config

C2 Extraction:

updatedrvier.duckdns.org:3001

Dropper Extraction:

https://archive.org/download/wp4096799-lost-in-space-wallpapers_20250624_1601/wp4096799-lost-in-space-wallpapers.jpg

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

Threat name:

Legit

Score:

0.08

Link:

https://yomi.yoroi.company/submissions/aaab431dab3880838f6be9e7eec86c82b0631029d4f804e91a39cd46596ca983

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:	detect_tiny_vbs Create hunting rule
Author:	daniyyell
Description:	Detects tiny VBS delivery technique

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)