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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83f698450650c084e323a20eb6fceb7a4186b61fd7845275c006dac941a6ecaf. 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: 13


Intelligence 13 IOCs YARA 16 File information Comments

SHA256 hash: 83f698450650c084e323a20eb6fceb7a4186b61fd7845275c006dac941a6ecaf
SHA3-384 hash: b88747e1ce99833f53aaeb2b8f5e9ff11e270948fe388646fd7d583efa60ff34fe8a86bfc85237bfb533a47ffc7046a9
SHA1 hash: 59d9f1f6d9c01b2e689425bc78910ad3506f1315
MD5 hash: b28fb0172961fcb8ea529008afb5b8ff
humanhash: robert-quiet-bravo-kilo
File name:proceso.vbs
Download: download sample
Signature AsyncRAT
File size:131'442 bytes
First seen:2026-10-01 07:02:17 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:JlVKDfGHLM+IKu1PC3mkEYJbHY8kD3QrsUxPYMXqt15/9pPRp1qc38EY708omwEf:JlVKzs8VtQjV2T7Yamgpu
TLSH T160D3705137941A79F27D0FC9C54F204A20F294DA3A24C14B9FB31AE37EE7A95CE34526
Magika vba
Reporter abuse_ch
Tags:AsyncRAT RAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
270
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
92.5%
Tags:
dropper sage blic
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd cscript dropper encrypted evasive lolbin msbuild obfuscated packed persistence schtasks wscript
Verdict:
Malicious
File Type:
vbs
First seen:
2026-09-30T14:16:00Z UTC
Last seen:
2026-10-02T03:04:00Z UTC
Hits:
~10
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential evasive JS / VBS script found (domain check)
Potential malicious VBS script found (has network functionality)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suricata IDS alerts for network traffic
Tries to detect sleep reduction / modifications
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows Shell Script Host drops VBS files
Writes to foreign memory regions
Wscript called in batch mode (surpress errors)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1980439 Sample: proceso.vbs Startdate: 01/10/2026 Architecture: WINDOWS Score: 100 42 medellin202156.duckdns.org 2->42 44 mr-b01.tm-azurefd.net 2->44 46 casoneroutegold-prod-bggfgca0dkaag8a8.b01.azurefd.net 2->46 56 Suricata IDS alerts for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 64 13 other signatures 2->64 9 wscript.exe 2 2->9         started        13 wscript.exe 2->13         started        signatures3 62 Uses dynamic DNS services 42->62 process4 file5 36 C:\Users\Public\v87867.js, ASCII 9->36 dropped 76 Benign windows process drops PE files 9->76 78 VBScript performs obfuscated calls to suspicious functions 9->78 80 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->80 82 3 other signatures 9->82 15 wscript.exe 1 7 9->15         started        19 cmd.exe 1 9->19         started        signatures6 process7 file8 38 C:\Users\user\AppData\Local\...\engine.exe, PE32 15->38 dropped 40 C:\Users\user\AppData\...\mediacache.vbs, ASCII 15->40 dropped 50 Windows Shell Script Host drops VBS files 15->50 52 Windows Scripting host queries suspicious COM object (likely to drop second stage) 15->52 54 WScript reads language and country specific registry keys (likely country aware script) 15->54 21 engine.exe 15->21         started        24 cmd.exe 2 15->24         started        26 conhost.exe 19->26         started        signatures9 process10 signatures11 66 Antivirus detection for dropped file 21->66 68 Writes to foreign memory regions 21->68 70 Allocates memory in foreign processes 21->70 74 2 other signatures 21->74 28 MSBuild.exe 2 21->28         started        72 Uses schtasks.exe or at.exe to add and modify task schedules 24->72 32 conhost.exe 24->32         started        34 schtasks.exe 1 24->34         started        process12 dnsIp13 48 medellin202156.duckdns.org 31.56.19.40, 49723, 7777 LINIVO-LinivoLLCUS Germany 28->48 84 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 28->84 signatures14
Verdict:
Malware
YARA:
1 match(es)
Tags:
ADODB.Stream Batch Command COM Behavior Trace DeObfuscated Obfuscated PowerShell PowerShell Call SOS: 0.56 T1027 T1059 T1059.001 T1059.005 VBScript WScript.Shell
Threat name:
Script-WScript.Backdoor.Xworm
Status:
Malicious
First seen:
2026-10-01 01:12:39 UTC
File Type:
Text
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:xworm defense_evasion discovery execution persistence rat trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Executes a VBScript file via the Windows Script Host.
Suspicious use of SetThreadContext
Indicator Removal: File Deletion
Checks computer location settings
Executes dropped EXE
Detect Xworm Payload
Family: Xworm
Malware Config
C2 Extraction:
medellin202156.duckdns.org:7777
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:ByteCode_MSIL_Backdoor_AsyncRAT
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Author:ditekSHen
Description:Detects XWorm
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Rule name:rat_win_xworm_v3
Author:Sekoia.io
Description:Finds XWorm (version XClient, v3) samples based on characteristic strings
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
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)
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:WIN_Sample_Unique_69354b41
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe
Rule name:win_xworm_w0
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:xworm
Author:jeFF0Falltrades

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 83f698450650c084e323a20eb6fceb7a4186b61fd7845275c006dac941a6ecaf

(this sample)

  
Delivery method
Distributed via web download

Comments