MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e38dbbf489e49b833117da15856f300d364274a96ec4145a7959627486d3f83. 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: 21


Intelligence 21 IOCs YARA 23 File information Comments 1

SHA256 hash: 8e38dbbf489e49b833117da15856f300d364274a96ec4145a7959627486d3f83
SHA3-384 hash: 097ef4910fa3e08623f8ceb1025cd15bde629312023393e6f79c9e274467a012794aefad25ad0a3333f3d385a1725a5f
SHA1 hash: a463300a860f499ca4d8e9ac47ab7e03c50ae0c4
MD5 hash: 668d7233fe42f5f36526ce8b4275186c
humanhash: william-alaska-one-bravo
File name:RAT.exe.bin
Download: download sample
Signature AsyncRAT
File size:34'816 bytes
First seen:2026-03-18 05:49:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'843 x AgentTesla, 19'775 x Formbook, 12'297 x SnakeKeylogger)
ssdeep 384:CpgcRiDC95rXxi6pOuArdM8QwM0/dB5eiNDTRCOV3buUsjQxnCQMJyVEEOjJfKny:G5rBih2wM0/XnNtLJbHBwySpKmHNMp+
Threatray 567 similar samples on MalwareBazaar
TLSH T134F22A04B3E84A65E1FE1BBD9D3192008375F9479E23DB9E1DC0509E1A73B888F64FA5
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 zhuzhu0009
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
147
Origin country :
JP JP
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:
RAT.exe
Verdict:
Malicious activity
Analysis date:
2026-03-18 05:46:23 UTC
Tags:
asyncrat ransomware rat

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

Behaviour
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file
Searching for synchronization primitives
Downloading the file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat base64 dcrat fareit fingerprint hiddentear lolbin masquerade obfuscated quasarrat ransomware razy reconnaissance reg schtasks unsafe vbnet windows
Verdict:
Malicious
File Type:
exe x32
Detections:
Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c Backdoor.MSIL.Crysan.b HEUR:Backdoor.MSIL.SheetRat.gen Backdoor.MSIL.Crysan.sb
Verdict:
AsyncRAT
YARA:
10 match(es)
Tags:
.Net AsyncRAT Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout RAT SOS: 0.21 Win 32 Exe x86
Malware Config
C2 Extraction:
CNC: axis.in.net
PORT: 43
Threat name:
ByteCode-MSIL.Ransomware.HiddenTear
Status:
Malicious
First seen:
2026-03-18 05:49:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:asyncrat family:seon discovery execution ransomware rat trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Badlisted process makes network request
Seon
Seon family
Malware Config
Dropper Extraction:
https://asyncrat.axis.in.net/stealer.ps1
https://asyncrat.axis.in.net/miner.ps1
https://axis.in.net/stealer.ps1
https://axis.in.net/miner.ps1
Unpacked files
SH256 hash:
8e38dbbf489e49b833117da15856f300d364274a96ec4145a7959627486d3f83
MD5 hash:
668d7233fe42f5f36526ce8b4275186c
SHA1 hash:
a463300a860f499ca4d8e9ac47ab7e03c50ae0c4
Detections:
win_asyncrat_w0 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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
Rule name:malware_asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MALWARE_Win_AsyncRAT
Author:ditekSHen
Description:Detects AsyncRAT
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: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_Generic_Threat_ce98c4bc
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)
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



Avatar
commented on 2026-03-18 05:50:57 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "8e38dbbf489e49b833117da15856f300d364274a96ec4145a7959627486d3f83",
"yara_possible_family": "asyncrat",
"key": "None",
"salt": "None",
"config": {
"Ports": [
"443"
],
"Hosts": [
"axis.in.net"
],
"Version": "0.5.7B",
"Install": "false",
"InstallFolder": "AppData",
"InstallFile": "AsyncRAT.exe",
"Key": "TXlTdXBlclNlY3JldEtleTIwMjYhQCM0NTY=",
"Mutex": "R2xvYmFsXF11bmlxdWVfcmF0XzIwMjY=",
"Certificate": "%Certificate%",
"Serversignature": "%Serversignature%",
"Anti": "false",
"Pastebin": "null",
"BDOS": "false",
"Delay": "0",
"Group": "TestVT"
}
}