MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 259bbd6c24a58f46519c8989bbeefa33c040dba6dc5edc60210b39141b9d3242. 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: 18


Intelligence 18 IOCs YARA 21 File information Comments 1

SHA256 hash: 259bbd6c24a58f46519c8989bbeefa33c040dba6dc5edc60210b39141b9d3242
SHA3-384 hash: a6938e4e61014260c10971df375f1b732aa4ee12fe082943e9da8f712eacf5b3de9bb8a8214ea11543589c48ee0143eb
SHA1 hash: 34ed87bc71758471a2e49782af8a0246a892636e
MD5 hash: 9a8268155d9cbf65b506b07eb3c58d03
humanhash: coffee-fruit-seventeen-washington
File name:MalwareRAT.exe
Download: download sample
Signature AsyncRAT
File size:34'816 bytes
First seen:2026-03-01 13:25:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'819 x AgentTesla, 19'743 x Formbook, 12'286 x SnakeKeylogger)
ssdeep 384:kMTZPkBc13ohM9oehElE1bdcWOebX093bayseHQxnC7O+WmlIuufGfrfCqwWW3EN:kiZPGc5ohM9BhT1hV4RbJwB+WWs8Q+
Threatray 289 similar samples on MalwareBazaar
TLSH T1ACF24A0573E59665E1FD0BBD5C3686044376FA474D62DBAE2EC450AE2A237C8CF24BE0
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 Anonymous
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
120
Origin country :
VN VN
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:
MalwareRAT.exe
Verdict:
Malicious activity
Analysis date:
2026-03-01 13:14:54 UTC
Tags:
rat asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
asyncrat vmdetect autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm asyncrat base64 fareit fingerprint lolbin obfuscated obfuscated quasarrat razy reconnaissance reg schtasks vbnet
Verdict:
Malicious
File Type:
exe x32
Detections:
HEUR:Backdoor.MSIL.SheetRat.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c Backdoor.MSIL.Crysan.b
Gathering data
Threat name:
ByteCode-MSIL.Infostealer.Pony
Status:
Malicious
First seen:
2026-03-01 13:26:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat discovery rat
Behaviour
Suspicious use of AdjustPrivilegeToken
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
259bbd6c24a58f46519c8989bbeefa33c040dba6dc5edc60210b39141b9d3242
MD5 hash:
9a8268155d9cbf65b506b07eb3c58d03
SHA1 hash:
34ed87bc71758471a2e49782af8a0246a892636e
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:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
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:INDICATOR_SUSPICIOUS_VM_Evasion_VirtDrvComb
Author:ditekSHen
Description:Detects executables referencing combination of virtualization drivers
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: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: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.

Web download

AsyncRAT

Executable exe 259bbd6c24a58f46519c8989bbeefa33c040dba6dc5edc60210b39141b9d3242

(this sample)

Comments



Avatar
commented on 2026-03-01 13:31:02 UTC

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

{
"sha256": "259bbd6c24a58f46519c8989bbeefa33c040dba6dc5edc60210b39141b9d3242",
"yara_possible_family": "asyncrat",
"key": "None",
"salt": "None",
"config": {
"Ports": [
"443"
],
"Hosts": [
"mali.ru.com"
],
"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"
}
}