MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fd3221d3e55b5242770210df8a425d292a85eb75700c7bf024b70a50c660bb8b. 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 18 File information Comments

SHA256 hash: fd3221d3e55b5242770210df8a425d292a85eb75700c7bf024b70a50c660bb8b
SHA3-384 hash: b8e2bd07915966aca9a14f776e2f43b105f17dd2d78f627119c122a9f558ce9228aa42567813ca8299e90b162b4ff247
SHA1 hash: c63714807f106bbe7012509ba80f3a8a34d495fc
MD5 hash: d716b971512dd6b1b5e287f4e6db7317
humanhash: moon-apart-single-hotel
File name:PO202601501_Сканированный_документ_docx.js
Download: download sample
Signature AsyncRAT
File size:1'185'885 bytes
First seen:2026-01-16 16:31:15 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:oB/JstRs6RJeJdRsPbIqHwydRs7d6bkEK4jSMCRUZCMO7j8zh3Si0C8dzx1PG/e+:oBQIqY5XGwSuPDXjU/Dx
TLSH T134450FC8544A61DD9209048ABF7D7E93CEE93634FB331D6EE82596EAD44232C8C4B774
Magika javascript
Reporter abuse_ch
Tags:AsyncRAT js RAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
409
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
70%
Tags:
malware
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 base64 evasive fingerprint masquerade obfuscated obfuscated overlay powershell repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-01-15T06:57:00Z UTC
Last seen:
2026-01-18T06:54:00Z UTC
Hits:
~100
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic
Result
Threat name:
AsyncRAT, PureLog Stealer
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates processes via WMI
Found malware configuration
Injects a PE file into a foreign processes
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Queries the IP of a very long domain name
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Reflective Assembly Load
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
Suspicious execution chain found
Suspicious powershell command line found
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 Generic Downloader
Yara detected MSILDownloaderGeneric
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1852141 Sample: 0#U043e#U0432#U0430#U043d#U... Startdate: 16/01/2026 Architecture: WINDOWS Score: 100 35 bafybeigsj5yz6r267b6ttfq2ogafhy3teubobtrckwwhijuzdsdjwy2wje.ipfs.w3s.link 2->35 37 bafybeibfoyi7ruuyoncarf4xr55qa3lthsjjjgrktk4ia4z3upesawb4ry.ipfs.w3s.link 2->37 39 2 other IPs or domains 2->39 49 Suricata IDS alerts for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 57 21 other signatures 2->57 8 wscript.exe 1 2 2->8         started        12 powershell.exe 14 15 2->12         started        15 wscript.exe 2->15         started        17 svchost.exe 1 1 2->17         started        signatures3 55 Queries the IP of a very long domain name 37->55 process4 dnsIp5 33 C:\Users\Public\Downloads33ame_File.js, ASCII 8->33 dropped 63 Suspicious powershell command line found 8->63 65 Wscript starts Powershell (via cmd or directly) 8->65 67 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->67 75 2 other signatures 8->75 43 bafybeibfoyi7ruuyoncarf4xr55qa3lthsjjjgrktk4ia4z3upesawb4ry.ipfs.w3s.link 104.18.41.169, 443, 49681, 49689 CLOUDFLARENETUS United States 12->43 45 bafybeigsj5yz6r267b6ttfq2ogafhy3teubobtrckwwhijuzdsdjwy2wje.ipfs.w3s.link 172.64.146.87, 443, 49682, 49690 CLOUDFLARENETUS United States 12->45 69 Writes to foreign memory regions 12->69 71 Injects a PE file into a foreign processes 12->71 73 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 12->73 19 aspnet_compiler.exe 2 12->19         started        22 conhost.exe 12->22         started        24 powershell.exe 15->24         started        47 127.0.0.1 unknown unknown 17->47 file6 signatures7 process8 dnsIp9 41 aassecc.ydns.eu 217.64.148.121, 49700, 62046, 7077 OBE-EUROPEObenetworkEuropeSE Sweden 19->41 59 Writes to foreign memory regions 24->59 61 Injects a PE file into a foreign processes 24->61 27 aspnet_compiler.exe 3 24->27         started        29 conhost.exe 24->29         started        31 aspnet_compiler.exe 24->31         started        signatures10 process11
Gathering data
Threat name:
Script-JS.Backdoor.Asyncrat
Status:
Malicious
First seen:
2026-01-15 12:57:16 UTC
File Type:
Text (JavaScript)
AV detection:
5 of 24 (20.83%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:jan-15-2026 discovery execution persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
AsyncRat
Asyncrat family
Process spawned unexpected child process
Malware Config
C2 Extraction:
aassecc.ydns.eu:7077
aassecc.ydns.eu:62046
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:AgentTesla
Author:Harish Kumar P
Description:Yara Rule to Detect AgentTesla
Rule name:AsyncRat
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:malware_asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
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:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
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:win_asyncrat_bytecodes
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
Rule name:win_asyncrat_w0
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information


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

Comments