MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c66c93d00fd52ad2efc773b29e339f3164bca178ea201009ba7d65a21f62e51. 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: 20


Intelligence 20 IOCs YARA 25 File information Comments

SHA256 hash: 8c66c93d00fd52ad2efc773b29e339f3164bca178ea201009ba7d65a21f62e51
SHA3-384 hash: e08fc83ae6d7caa02e582a39b0b7a5f2b3740a12b723edae75607aad30a3b7589067ae17cb27385a401a63923d4d9d93
SHA1 hash: 6404251e3555978f081f9bd17e9b295f59166680
MD5 hash: 8b4d740adbe4635b5ee756b7a6bf996d
humanhash: burger-north-pasta-blue
File name:mko1.exe
Download: download sample
Signature AsyncRAT
File size:48'640 bytes
First seen:2026-05-14 04:56:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'131 x AgentTesla, 20'159 x Formbook, 12'362 x SnakeKeylogger)
ssdeep 768:Tu7fNTdMEGBWUZDurmo2qrGlGLb4iYwUIXPIqAHvPqbsp5zWYn8OXEsslBDZMx:Tu7fNTdjN2cgi2lqTbe5zW85EvdMx
Threatray 1'330 similar samples on MalwareBazaar
TLSH T198233D007BE9823AF2BE4FB4ADF21145467AF2673603D64D1CC4019B5723FC68A526FA
TrID 70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win64 Executable (generic) (6522/11/2)
4.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter VTR
Tags:AsyncRAT botnet c2 exe trojan


Avatar
VTR
Detected sample uploaded for analysis.
C2/domain notes go here.

Intelligence


File Origin
# of uploads :
1
# of downloads :
277
Origin country :
Vendor Threat Intelligence
Malware configuration found for:
AsyncRAT
Details
AsyncRAT
c2 socket addresses or a dead drop resolver url, a version, a mutex, an SSL certificate and server signature, an interval, varying flags, and possibly a filepath and a group
Malware family:
asyncrat
ID:
1
File name:
_8c66c93d00fd52ad2efc773b29e339f3164bca178ea201009ba7d65a21f62e51.exe
Verdict:
Malicious activity
Analysis date:
2026-05-14 04:58:05 UTC
Tags:
auto-reg asyncrat rat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Sending a custom TCP request
Creating a window
DNS request
Connection attempt
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat asyncrat base64 fareit fingerprint lolbin obfuscated obfuscated razy reconnaissance reg samas schtasks vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-14T02:05:00Z UTC
Last seen:
2026-05-16T00:38:00Z UTC
Hits:
~10
Detections:
Backdoor.MSIL.Crysan.b PDM:Trojan.Win32.Tasker.cust PDM:Trojan.Win32.Generic HEUR:Trojan.Win32.Generic HEUR:Backdoor.MSIL.SheetRat.gen HEUR:Backdoor.MSIL.Crysan.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d
Verdict:
AsyncRAT
YARA:
14 match(es)
Tags:
.Net AsyncRAT Executable Managed .NET PE (Portable Executable) PE File Layout RAT SOS: 0.82 Win 32 Exe x86
Malware Config
C2 Extraction:
CNC: hq.wzqx.xyz
PORT: 22,80,443,1604,4444,4782,5552,6606,7707,8080,8848,8888,9527,9999
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2026-05-14 04:56:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Gathering data
Unpacked files
SH256 hash:
8c66c93d00fd52ad2efc773b29e339f3164bca178ea201009ba7d65a21f62e51
MD5 hash:
8b4d740adbe4635b5ee756b7a6bf996d
SHA1 hash:
6404251e3555978f081f9bd17e9b295f59166680
Detections:
AsyncRAT
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:asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:AsyncRat
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:asyncrat_kingrat
Author:jeFF0Falltrades
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:malware_asyncrat
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
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:msil_suspicious_use_of_strreverse
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
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:SUSP_Reverse_Run_Key
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
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:Windows_Trojan_Asyncrat_11a11ba1
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_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
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.

Web download

AsyncRAT

Executable exe 8c66c93d00fd52ad2efc773b29e339f3164bca178ea201009ba7d65a21f62e51

(this sample)

  
Delivery method
Distributed via web download

Comments