MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339. 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 1 YARA 28 File information Comments

SHA256 hash:	dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339
SHA3-384 hash:	59dac35c59c564715143afd560619102f38aa12a1e393acb53ce03c0e87048f5b6bbd6ddec723c68145b529d043a9c76
SHA1 hash:	a3ca6db514465da457bf303e36e20720563e2b19
MD5 hash:	8341c41df42418a3e60b58aeada9382c
humanhash:	august-december-papa-mexico
File name:	AsyncClient.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	46'080 bytes
First seen:	2025-09-06 07:15:07 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep	768:luI1tT/w70kWUquzumo2qzEKjPGaG6PIyzjbFgX3ihCwDkJJVnHCVux1KBDZWx:luI1tT/kW2tKTkDy3bCXSbinHg9dWx
Threatray	1'952 similar samples on MalwareBazaar
TLSH	T19D232B003BE8822BF2BE4FB89CF26145867AF5636603D6491CC451DB5713FC69A426FE
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	abuse_ch
Tags:	AsyncRAT exe RAT

abuse_ch

AsyncRAT C2:
192.159.99.13:7777

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
192.159.99.13:7777	https://threatfox.abuse.ch/ioc/1582737/

Intelligence

File Origin

# of uploads :

# of downloads :

153

Origin country :

Vendor Threat Intelligence

Malware family:

asyncrat

ID:

File name:

AsyncClient.exe

Verdict:

Malicious activity

Analysis date:

2025-09-06 07:03:25 UTC

Tags:

auto-reg asyncrat

Link:

https://app.any.run/tasks/99ea2a62-6375-4f35-97b0-314df1a53d7d

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

AsyncRAT

Link:

https://www.capesandbox.com/analysis/25980/

Detection(s):

Win.Packed.Razy-9625918-0

Win.Packed.AsyncRAT-9856570-1

Win.Packed.AsyncRAT-9861056-1

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68bbdcbceb163e0ec184eb93

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

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

Creating a file in the %temp% directory

Creating a file

Launching a process

Creating a process from a recently created file

Connection attempt

Sending a custom TCP request

Unauthorized injection to a recently created process

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

asyncrat config-extracted njrat obfuscated rat reg vbnet

Link:

https://www.filescan.io/uploads/68bbe01920d0ee406d97c0ba/reports/495d6a29-67c4-467a-b6b0-63c095b00560/overview

Verdict:

Malicious

Labled as:

AsyncRAT.Marte.B.Generic

Link:

https://www.hybrid-analysis.com/sample/dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-09-06T04:09:00Z UTC

Last seen:

2025-09-06T04:09:00Z UTC

Hits:

~10

Detections:

Backdoor.MSIL.Crysan.b HEUR:Trojan.Win32.Generic HEUR:Backdoor.MSIL.SheetRat.gen HEUR:Backdoor.MSIL.Crysan.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.fb Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c

Link:

https://opentip.kaspersky.com/dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/8637d8d6-0a1d-4819-b92b-c7cf04eac752

Result

Threat name:

AsyncRAT, zgRAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1772281

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Found malware configuration

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Sigma detected: Invoke-Obfuscation CLIP+ Launcher

Sigma detected: Invoke-Obfuscation VAR+ Launcher

Sigma detected: Potentially Suspicious Malware Callback Communication

Suricata IDS alerts for network traffic

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to harvest and steal browser information (history, passwords, etc)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AsyncRAT

Yara detected Costura Assembly Loader

Yara detected zgRAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339

Verdict:

njRat

YARA:

14 match(es)

Tags:

.Net AsyncRAT Executable Managed .NET njRat PE (Portable Executable) PE File Layout RAT SOS: 0.21 Win 32 Exe x86

Malware Config

C2 Extraction:

CNC: 192.159.99.13
PORT: 7777

Link:

https://app.malva.re/file/8341c41df42418a3e60b58aeada9382c

Detection:

asyncrat

Link:

https://mwdb.cert.pl/sample/dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339/

Verdict:

Malicious

Threat:

Family.ASYNCRAT

Link:

https://tip.neiki.dev/file/dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2025-09-06 07:03:25 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

31 of 36 (86.11%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=37mucukujt7p37p4klezatrjlv3ngjalj5vxo4uoiuew5bg2im4q._file

Verdict:

malicious

Label(s):

asyncrat

AsyncRAT

5e088f3ae8bf2631e5aaa8de2facd537a65ef5e269924213e14ee41d94b6a446

AsyncRAT

70edef5a9165f8776f6bde6c60108c0bbcc33e7d10e07d16024bfedf70ec008b

AsyncRAT

7c8c576731dd13174bd9289726bc59c98fa0db27515da65d5f3434c5c2921d02

AsyncRAT

7f14cf5740bb204942ae69690aea4bb17dea9bee17323311a6613c766a716b24

AsyncRAT

d217e4c9f95bca4ccbbddbc67bfecf977000268473254c1736a4a1260903ba1b

AsyncRAT

dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339

AsyncRAT

error

AsyncRAT

+ 1'942 additional samples on MalwareBazaar

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:default defense_evasion discovery execution persistence rat spyware stealer

Link:

https://tria.ge/reports/250906-h4ljeazmx4/

Behaviour

Delays execution with timeout.exe

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Checks computer location settings

Executes dropped EXE

Reads user/profile data of web browsers

Async RAT payload

AsyncRat

Asyncrat family

Malware Config

C2 Extraction:

192.159.99.13:7777

Verdict:

Malicious

Tags:

rat asyncrat Win.Packed.Razy-9625918-0

YARA:

AsyncRat_Payload JPCERTCC_Asyncrat Windows_Generic_Threat_ce98c4bc Windows_Trojan_Asyncrat_11a11ba1 asyncrat malware_asyncrat win_asyncrat_unobfuscated

Link:

https://app.threat.zone/submission/65378403-eb7f-4e59-b0d1-299d615df5d6

Unpacked files

SH256 hash:

dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339

MD5 hash:

8341c41df42418a3e60b58aeada9382c

SHA1 hash:

a3ca6db514465da457bf303e36e20720563e2b19

Detections:

win_asyncrat_w0

AsyncRAT

Link:

https://www.unpac.me/results/ded91035-388c-4964-aa01-eda20d1e2624/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

iSpy Keylogger

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/dfd94151544cfefdfdfc52c9904e295d76d3240b4f6b77728e45096e84da4339

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 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect AsyncRat in memory
Reference:	internal research

Rule name:	AsyncRat Create hunting rule
Author:	kevoreilly, JPCERT/CC Incident Response Group
Description:	AsyncRat Payload

Rule name:	AsyncRAT_ Create hunting rule
Author:	Michelle Khalil
Description:	This rule detects unpacked AsyncRAT malware samples.

Rule name:	asyncrat_kingrat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	CP_AllMal_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse Create hunting rule
Author:	ditekSHen
Description:	Detects file containing reversed ASEP Autorun registry keys

Rule name:	malware_asyncrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect AsyncRat in memory
Reference:	internal research

Rule name:	malware_asyncrat Create hunting rule
Description:	detect AsyncRat in memory
Reference:	https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp

Rule name:	MAL_AsnycRAT Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects AsnycRAT based on it's config decryption routine

Rule name:	MAL_AsyncRAT_Config_Decryption Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects AsnycRAT based on it's config decryption routine

Rule name:	Mal_WIN_AsyncRat_RAT_PE Create hunting rule
Author:	Phatcharadol Thangplub
Description:	Use to detect AsyncRAT implant.

Rule name:	msil_suspicious_use_of_strreverse Create hunting rule
Author:	dr4k0nia
Description:	Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse

Rule name:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_DOTNET_PE_List_AV Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detecs .NET Binary that lists installed AVs

Rule name:	SUSP_Reverse_Run_Key Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects a Reversed Run Key

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
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 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_Asyncrat_11a11ba1 Create hunting rule
Author:	Elastic Security

Rule name:	win_asyncrat_bytecodes Create hunting rule
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 Create hunting rule
Author:	Johannes Bader @viql
Description:	detects AsyncRAT

Rule name:	win_asyncrat_unobfuscated Create hunting rule
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 Create hunting rule
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.

Cape

https://www.capesandbox.com/analysis/25980/

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