MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d. 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: 11


Intelligence 11 IOCs YARA 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d
SHA3-384 hash: 9f5ea761f4e05cfed943ff5a1558e40bcb3b1649017f27331c19b831af077607b25e0f2f908e16b39969758b5c6aeaa0
SHA1 hash: 5052b1b9727cf595b147d2ba07763d7b863e67bb
MD5 hash: 511b79306c614b07bc732fdca4247928
humanhash: ohio-minnesota-cardinal-single
File name:sostener.vbs
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:2'479'184 bytes
First seen:2025-08-27 12:25:53 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 96:X6G7MM9wC7k8v1+hlwTrDOjYIflQsZb8JnHOyccZPtl/qJoMVAMv7YEV:qAw+1EhWnGxZbQHdzZPtUm0V
TLSH T1B0B5284E5B89C03936D56ED34C492AAE89D376758C448C4FC38B62A0387E67C7E11EDB
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika autoit
Reporter Joker
Tags:AsyncRAT GuLoader vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
120
Origin country :
US US
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/23875/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68aef985eb163e0ec182e0a4
Tags:
obfuscate asyncrat xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 base64 evasive obfuscated powershell
Link:
https://www.filescan.io/uploads/68aef98439a6221faa70e3dd/reports/9a470b5c-6ebe-44d0-a032-4110da272f3d/overview
Verdict:
Malicious
Labled as:
GT:VB.Honolulu.1
Link:
https://www.hybrid-analysis.com/sample/4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d
Verdict:
Unknown
File Type:
Link:
https://opentip.kaspersky.com/4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d/results?tab=lookup
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d
Gathering data
Detection:
dcrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d/
Verdict:
Malicious
Threat:
Family.ASYNCRAT
Link:
https://tip.neiki.dev/file/4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d
Threat name:
Script-WScript.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-08-27 12:27:40 UTC
File Type:
Text (VBS)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ikmkiqfvynwyoycbqekogj4dpcywpogqsjtwid75vapqqicbpcoq._file
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:llegan1111 defense_evasion discovery execution rat
Link:
https://tria.ge/reports/250827-pmkdcazpz2/
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:
enviosenvios8899.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.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d

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
Create hunting rule
Author:Nikos 'n0t' Totosis
Description:AcRat Payload (based on AsyncRat)
Rule name:CP_AllMal_Detector
Create hunting rule
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
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:dcrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:dcrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:dcrat_rkp
Create hunting rule
Author:jeFF0Falltrades
Description:Detects DCRat payloads
Rule name:INDICATOR_SUSPICIOUS_EXE_B64_Artifacts
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:Mal_WIN_AsyncRat_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect AsyncRAT implant.
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
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:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_DCRat_1aeea1ac
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_unobfuscated
Create hunting rule
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 4298a440b5c36d8760418114e3278378b167b8d09267640ffda81f082041789d

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/23875/
  
URLhaus
https://urlhaus.abuse.ch/url/3606193/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3353568/

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