MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 642905ce09772b7ee37efac563f1d14581b2d677a738aa8f44244659d331f921. 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



SiriusRAT


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments

SHA256 hash: 642905ce09772b7ee37efac563f1d14581b2d677a738aa8f44244659d331f921
SHA3-384 hash: 05230bfeba16db559580ae0427b832a47611096ac060e94ad091999b5b950a45298fc99e72e7ff63239aea47516ac400
SHA1 hash: 310ae09bbecf35553ca6d73ac4c642f41590abc4
MD5 hash: f52d4fd0fed3a7a77b8c1dcf6463ebea
humanhash: pasta-one-cola-finch
File name:TENDER-20005953911.vbs
Download: download sample
Signature SiriusRAT
File size:38'506 bytes
First seen:2026-07-24 02:22:58 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 192:9RJj7tb0RZCURg0CxCr/E9CXpWWhC9r/ERC3R070O9CXwj7tb0RZCL/CKRO0pWWM:qDRB5i9N7fs2n7lr5/Y0
TLSH T1B703EED6C4624FE35DD3C224F84CB340EE2DA4CAB96A6E155C1D7D0E80A0B5426B7DE9
Magika vba
Reporter threatcat_ch
Tags:SiriusRAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
88
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm fingerprint powershell
Verdict:
Malicious
File Type:
vbs
First seen:
2026-07-23T22:47:00Z UTC
Last seen:
2026-07-23T23:20:00Z UTC
Hits:
~100
Result
Threat name:
Clipboard Hijacker, Sirius Rat
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Bypasses PowerShell execution policy
Contains functionality to hide user accounts
Contains functionality to start a terminal service
Creates processes via WMI
Deletes shadow drive data (may be related to ransomware)
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Capture Wi-Fi password
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to access browser extension known for cryptocurrency wallets
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal WLAN passwords
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
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 Clipboard Hijacker
Yara detected Generic Stealer
Yara detected Powershell decode and execute
Yara detected Sirius Rat
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1947446 Sample: TENDER-20005953911.vbs Startdate: 24/07/2026 Architecture: WINDOWS Score: 100 37 ip-api.com 2->37 51 Suricata IDS alerts for network traffic 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Sigma detected: Capture Wi-Fi password 2->55 57 13 other signatures 2->57 10 wscript.exe 1 2->10         started        13 powershell.exe 15 2->13         started        signatures3 process4 signatures5 67 Wscript starts Powershell (via cmd or directly) 10->67 69 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->69 71 Suspicious execution chain found 10->71 75 2 other signatures 10->75 15 powershell.exe 14 16 10->15         started        73 Found many strings related to Crypto-Wallets (likely being stolen) 13->73 process6 dnsIp7 43 103.75.189.141, 49769, 49771, 80 GIGABIT-MYGigabitHostingSdnBhdMY Malaysia 15->43 45 Writes to foreign memory regions 15->45 47 Modifies the context of a thread in another process (thread injection) 15->47 49 Injects a PE file into a foreign processes 15->49 19 CasPol.exe 25 15->19         started        23 conhost.exe 15->23         started        signatures8 process9 dnsIp10 39 ip-api.com 208.95.112.1, 49772, 80 TUT-AS-TotalUptimeTechnologiesLLCUS United States 19->39 41 104.239.66.128, 49773, 7171 STELLARGROUPSASFR France 19->41 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->59 61 Contains functionality to start a terminal service 19->61 63 Contains functionality to hide user accounts 19->63 65 7 other signatures 19->65 25 cmd.exe 2 19->25         started        signatures11 process12 file13 35 C:\Users\user\AppData\...\wifi_profiles.tmp, ASCII 25->35 dropped 77 Uses netsh to modify the Windows network and firewall settings 25->77 79 Tries to harvest and steal WLAN passwords 25->79 29 netsh.exe 2 25->29         started        31 conhost.exe 25->31         started        33 chcp.com 1 25->33         started        signatures14 process15
Gathering data
Gathering data
Result
Malware family:
siriusrat
Score:
  10/10
Tags:
family:siriusrat collection defense_evasion discovery execution persistence privilege_escalation rat trojan
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Browser Information Discovery
Command and Scripting Interpreter: PowerShell
Event Triggered Execution: Netsh Helper DLL
Executes a command shell one-liner
System Network Configuration Discovery: Wi-Fi Discovery
Executes a VBScript file via the Windows Script Host.
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Badlisted process makes network request
Detects SiriusRAT
Family: SiriusRAT
Process spawned unexpected child process
Windows security bypass
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:detect_tiny_vbs
Author:daniyyell
Description:Detects tiny VBS delivery technique

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

SiriusRAT

Visual Basic Script (vbs) vbs 642905ce09772b7ee37efac563f1d14581b2d677a738aa8f44244659d331f921

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments