MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 819e15166c6189ea5cf362c6c79ed5534470e23e695ba51ec04698a1727d3f2e. 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 1 YARA 21 File information Comments

SHA256 hash: 819e15166c6189ea5cf362c6c79ed5534470e23e695ba51ec04698a1727d3f2e
SHA3-384 hash: 7f9269d8f7cb605041df329dacc5cc9fd71da224d90786b0aa8f846dbdb95a64ce8ceaf6415c9eb70fdcb14e6c113d50
SHA1 hash: 4b0ebc7b43942a70da5c5e0ca9f97c6bf312d088
MD5 hash: 0cac368e70fc215b8a1e36f4906fc2c6
humanhash: king-steak-idaho-october
File name:Rfquotation#9739083000.pdf.js
Download: download sample
Signature AsyncRAT
File size:558'023 bytes
First seen:2026-02-20 15:20:10 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:i62VTb/tgWC/lwVMDnUkQ6WZ/bfNfsyyjxRdcUA6DrhBLAcfeBOI:i62VPtSlwVInQ6ubfNf3O2UvTo
TLSH T168C4CF45064953B5EFCC9977A0AE1B4BA7E01E12EAC3355EC923BDC97BFE7442211238
Magika javascript
Reporter abuse_ch
Tags:AsyncRAT js RAT


Avatar
abuse_ch
AsyncRAT C2:
194.116.236.112:7232

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
194.116.236.112:7232 https://threatfox.abuse.ch/ioc/1751336/

Intelligence


File Origin
# of uploads :
1
# of downloads :
138
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
97.4%
Tags:
ransomware shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated repaired
Verdict:
Malicious
File Type:
text
Detections:
Trojan.Win32.InjectorNetT.s HEUR:Trojan.Script.SAgent.gen PDM:Trojan.Win32.Generic Trojan.PowerShell.Cobalt.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c Backdoor.MSIL.Crysan.b
Result
Threat name:
AsyncRAT, PureLog Stealer, zgRAT
Detection:
malicious
Classification:
evad.troj.spyw.expl
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
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential obfuscated javascript found
Sample uses string decryption to hide its real strings
Sigma detected: Suspicious Parent Double Extension File Execution
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Uses an obfuscated file name to hide its real file extension (double extension)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Powershell decode and execute
Yara detected PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1872557 Sample: Rfquotation#9739083000.pdf.js Startdate: 20/02/2026 Architecture: WINDOWS Score: 100 34 Suricata IDS alerts for network traffic 2->34 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 16 other signatures 2->40 7 wscript.exe 3 2->7         started        process3 file4 28 C:\Temp\ps_JZjbRFUzZajd_1771601884328.ps1, ASCII 7->28 dropped 42 JScript performs obfuscated calls to suspicious functions 7->42 44 Suspicious powershell command line found 7->44 46 Wscript starts Powershell (via cmd or directly) 7->46 48 4 other signatures 7->48 11 powershell.exe 16 7->11         started        14 cmd.exe 1 7->14         started        signatures5 process6 signatures7 50 Writes to foreign memory regions 11->50 52 Injects a PE file into a foreign processes 11->52 16 aspnet_compiler.exe 1 2 11->16         started        20 conhost.exe 11->20         started        22 aspnet_compiler.exe 11->22         started        24 taskkill.exe 1 14->24         started        26 conhost.exe 14->26         started        process8 dnsIp9 30 194.116.236.112, 49735, 49737, 7232 AS209737TR unknown 16->30 32 Tries to harvest and steal browser information (history, passwords, etc) 16->32 signatures10
Gathering data
Threat name:
Script-JS.Backdoor.FormBook
Status:
Malicious
First seen:
2026-02-20 14:34:15 UTC
File Type:
Text (JavaScript)
AV detection:
12 of 37 (32.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
fantomcrypt
Similar samples:
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:smart white defense_evasion discovery execution rat
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
nano.viewdns.net:7232
194.116.236.112:7232
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:Base64_Encoded_Powershell_Directives
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:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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