MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3e6bdc1b04ee6d931d0d5e5375cec5be704c3952e6de5950f52410c5586e78ee. 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: 12


Intelligence 12 IOCs YARA 24 File information Comments

SHA256 hash: 3e6bdc1b04ee6d931d0d5e5375cec5be704c3952e6de5950f52410c5586e78ee
SHA3-384 hash: 2fa7c79892b57dcef61dc6324886dc2c442f9ede46eca1e33103f994bd1afb9f888583988f15489c6ad82510d1879251
SHA1 hash: 9ebb7605760ad7000726d9fc3c4fca702989d503
MD5 hash: 0c3933272e10e62789cbad96ec117bff
humanhash: massachusetts-texas-iowa-one
File name:svchost.vbs
Download: download sample
Signature AsyncRAT
File size:2'479'032 bytes
First seen:2025-08-26 14:35:11 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 96:4TTTTTTTTTTTTTTTTTTzTTTTTTTTTTTTTTTTTTKTTTTTTTTTTTTTTTTTTzTTTTT4:qkw+1EhWnGxZbFeZPtUm0B
TLSH T1AEB52E0ED9E5B38BD5F1C87A5092943349A27717874E8CC8B383494624EDCE27EF5E92
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika txt
Reporter abuse_ch
Tags:AsyncRAT RAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
82
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
obfuscate asyncrat xtreme shell
Verdict:
Malicious
File Type:
unknown
First seen:
2025-08-26T03:30:00Z UTC
Last seen:
2025-08-26T03:30:00Z UTC
Hits:
~10
Detections:
Trojan-Downloader.JS.SLoad.sb Trojan.Win32.Agent.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic
Result
Threat name:
AsyncRAT, Dacic, DcRat
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential dropper URLs found in powershell memory
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 AsyncRAT
Yara detected Dacic
Yara detected DcRat
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1765478 Sample: svchost.vbs Startdate: 26/08/2025 Architecture: WINDOWS Score: 100 35 oficios2026.duckdns.org 2->35 37 uc92e404556aa9a062538838a956.dl.dropboxusercontent.com 2->37 39 10 other IPs or domains 2->39 45 Suricata IDS alerts for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 53 16 other signatures 2->53 10 wscript.exe 1 2->10         started        signatures3 51 Uses dynamic DNS services 35->51 process4 signatures5 63 VBScript performs obfuscated calls to suspicious functions 10->63 65 Suspicious powershell command line found 10->65 67 Wscript starts Powershell (via cmd or directly) 10->67 69 2 other signatures 10->69 13 powershell.exe 7 10->13         started        process6 signatures7 71 Suspicious powershell command line found 13->71 73 Encrypted powershell cmdline option found 13->73 75 Bypasses PowerShell execution policy 13->75 77 2 other signatures 13->77 16 powershell.exe 14 17 13->16         started        21 conhost.exe 13->21         started        process8 dnsIp9 31 edge-block-www-env.dropbox-dns.com 162.125.4.15, 443, 49692, 49694 DROPBOXUS United States 16->31 33 www-env.dropbox-dns.com 162.125.4.18, 443, 49691, 49693 DROPBOXUS United States 16->33 29 C:\Users\user\AppData\Local\Temp\veeoZ.ps1, Unicode 16->29 dropped 43 Potential dropper URLs found in powershell memory 16->43 23 powershell.exe 11 16->23         started        file10 signatures11 process12 signatures13 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 23->55 57 Writes to foreign memory regions 23->57 59 Potential dropper URLs found in powershell memory 23->59 61 Injects a PE file into a foreign processes 23->61 26 MSBuild.exe 2 23->26         started        process14 dnsIp15 41 oficios2026.duckdns.org 192.169.69.26, 1111, 49697, 49700 WOWUS United States 26->41
Gathering data
Threat name:
Script-WScript.Trojan.GuLoader
Status:
Malicious
First seen:
2025-08-26 06:20:12 UTC
File Type:
Text (VBS)
AV detection:
10 of 38 (26.32%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:11111 defense_evasion discovery execution rat
Behaviour
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
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Badlisted process makes network request
Modifies trusted root certificate store through registry
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
oficios2026.duckdns.org:1111
Dropper Extraction:
https://www.dropbox.com/scl/fi/wodfuzrbz0pc7kkc3yl2u/dll.txt?rlkey=erzuh647o5ctzdnc0j1sgw83v&st=2st75vf5&dl=1
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:AcRat
Author:Nikos 'n0t' Totosis
Description:AcRat Payload (based on AsyncRat)
Rule name:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:dcrat
Author:jeFF0Falltrades
Rule name:dcrat_kingrat
Author:jeFF0Falltrades
Rule name:dcrat_rkp
Author:jeFF0Falltrades
Description:Detects DCRat payloads
Rule name:INDICATOR_SUSPICIOUS_EXE_B64_Artifacts
Author:ditekSHen
Description:Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:MAL_AsnycRAT
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:Mal_WIN_AsyncRat_RAT_PE
Author:Phatcharadol Thangplub
Description:Use to detect AsyncRAT implant.
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
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:Windows_Generic_Threat_ce98c4bc
Author:Elastic Security
Rule name:Windows_Trojan_DCRat_1aeea1ac
Author:Elastic Security
Rule name:win_asyncrat_unobfuscated
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)

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 3e6bdc1b04ee6d931d0d5e5375cec5be704c3952e6de5950f52410c5586e78ee

(this sample)

  
Delivery method
Distributed via web download

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