MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6ecbf71d231e9b9e7459b97c97d94aed467481b5b4f22af288bbaea5945c1af4. 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


AsyncRAT


Vendor detections: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6ecbf71d231e9b9e7459b97c97d94aed467481b5b4f22af288bbaea5945c1af4
SHA3-384 hash: bc6db1c4e489852b57641814313e0a7d003762c2693085192dc42b042af673692f62085e22cb61e6e8d5a39e80b6c94b
SHA1 hash: a2a56f2293a4b0004eb101ebd2099afe53d0f910
MD5 hash: c1e199031d3f9893f37eb1d4e92941a9
humanhash: lemon-alabama-neptune-california
File name:HealthUpdateCore.vbs
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:3'565'485 bytes
First seen:2025-06-18 06:48:04 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 49152:InpJyHKCcF+NqMyC9Ae3PAfBse8djd7NB:/
TLSH T1DBF5F0CFBD0D5684885222FA68258552F2CC43E67301E7B2FD7CC591B3968F8D96B392
Magika vba
Reporter abuse_ch
Tags:AsyncRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/9982/
Gathering data
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/685261c4fd02ed5e05b15461/reports/50d7167e-e356-4c5e-ba9b-79041a179d87/overview
Verdict:
Malicious
Labled as:
HEUR_TrojanDownloader_Script_Generic
Link:
https://www.hybrid-analysis.com/sample/6ecbf71d231e9b9e7459b97c97d94aed467481b5b4f22af288bbaea5945c1af4
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1717148
Signature
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
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
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 AsyncRAT
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1717148 Sample: HealthUpdateCore.vbs Startdate: 18/06/2025 Architecture: WINDOWS Score: 100 25 securityhealthmonitor.duckdns.org 2->25 27 paste.ee 2->27 29 5 other IPs or domains 2->29 37 Suricata IDS alerts for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 47 15 other signatures 2->47 8 wscript.exe 1 2->8         started        signatures3 43 Uses dynamic DNS services 25->43 45 Connects to a pastebin service (likely for C&C) 27->45 process4 dnsIp5 31 paste.ee 23.186.113.60, 443, 49690, 49692 KLAYER-GLOBALNL Reserved 8->31 49 System process connects to network (likely due to code injection or exploit) 8->49 51 Suspicious powershell command line found 8->51 53 Wscript starts Powershell (via cmd or directly) 8->53 55 2 other signatures 8->55 12 powershell.exe 14 16 8->12         started        signatures6 process7 dnsIp8 33 link.storjshare.io 136.0.77.2, 443, 49695 EGIHOSTINGUS United States 12->33 35 d2rf50u1p3jcpj.cloudfront.net 18.238.80.105, 443, 49693 AMAZON-02US United States 12->35 57 Writes to foreign memory regions 12->57 59 Found suspicious powershell code related to unpacking or dynamic code loading 12->59 61 Injects a PE file into a foreign processes 12->61 16 MSBuild.exe 2 12->16         started        19 conhost.exe 12->19         started        signatures9 process10 dnsIp11 21 securityhealthmonitor.duckdns.org 191.93.118.254, 49697, 49700, 49703 ColombiaMovilCO Colombia 16->21 23 192.168.2.6, 138, 443, 49689 unknown unknown 16->23
Score:
72%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/6ecbf71d231e9b9e7459b97c97d94aed467481b5b4f22af288bbaea5945c1af4
Verdict:
inconclusive
YARA:
2 match(es)
Link:
https://app.malva.re/file/c1e199031d3f9893f37eb1d4e92941a9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6ecbf71d231e9b9e7459b97c97d94aed467481b5b4f22af288bbaea5945c1af4/
Verdict:
Malicious
Link:
https://tip.neiki.dev/file/6ecbf71d231e9b9e7459b97c97d94aed467481b5b4f22af288bbaea5945c1af4
Threat name:
Script-WScript.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2025-06-17 23:47:32 UTC
File Type:
Text (VBS)
AV detection:
6 of 24 (25.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n3f7ohjdd2nz45czxf6jpwkk5vdhjanvwtzcv4uixoxklfc4dl2a._file
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:newstar3 discovery execution rat
Link:
https://tria.ge/reports/250618-hmaqksysfv/
Behaviour
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
securityhealthmonitor.duckdns.org:8848
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/6ecbf71d231e9b9e7459b97c97d94aed467481b5b4f22af288bbaea5945c1af4

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)
Rule name:Warp
Create hunting rule
Author:Seth Hardy
Description:Warp
Rule name:WarpStrings
Create hunting rule
Author:Seth Hardy
Description:Warp Identifying Strings

File information

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

Web download

AsyncRAT

Visual Basic Script (vbs) vbs 6ecbf71d231e9b9e7459b97c97d94aed467481b5b4f22af288bbaea5945c1af4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3563296/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/9982/

Comments