MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb28d0aa4dfb2c2ebbb032c445abdb86a6fb6b6a89a14a0ae13fdd3530dc6789. 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 1 YARA 29 File information Comments

SHA256 hash:	fb28d0aa4dfb2c2ebbb032c445abdb86a6fb6b6a89a14a0ae13fdd3530dc6789
SHA3-384 hash:	5f722b487041ef04be1461844459ef64d53f196cb9e43286e68ea32ef56a9216a9f40cc4503a42bc2732e40522f21530
SHA1 hash:	5feabe889ca765acd0333f4751e1bdf60242c063
MD5 hash:	041cb077e984d4e46c482c6b4e72ddcb
humanhash:	butter-foxtrot-don-don
File name:	041cb077e984d4e46c482c6b4e72ddcb.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	46'080 bytes
First seen:	2026-09-05 14:35:09 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'221 x AgentTesla, 20'420 x Formbook, 12'370 x SnakeKeylogger)
ssdeep	768:uu4/fTpYkoqWU87yKmo2q8IKjPGaG6PIyzjbFgX3ip85WxAez0JxqBDZax:uu4/fTp7s2cKTkDy3bCXSscf3dax
TLSH	T1C3231B003BE9822BF2BE4F78ADF26145467AF2A32603D5491CC451D75713FC69A42AFE
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	abuse_ch
Tags:	AsyncRAT exe RAT

abuse_ch

AsyncRAT C2:
163.245.215.235:8808

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
163.245.215.235:8808	https://threatfox.abuse.ch/ioc/1901466/

Intelligence

File Origin

# of uploads :

# of downloads :

202

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

AsyncRAT

Details

Link:

https://research.acce.ciphertechsolutions.com/results/3f9f6209-f115-4d93-bb81-33b785543261/

Malware family:

asyncrat

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-09-05 14:41:25 UTC

Tags:

rat asyncrat

Link:

https://app.any.run/tasks/30f8fe76-2d2a-4c00-918d-1e2ae85181a0

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/84137/

Detection(s):

Win.Packed.Razy-9625918-0

Win.Packed.AsyncRAT-9856570-1

Win.Packed.AsyncRAT-9861056-1

YARA.SECUINFRA_SUSP_Reverse_Run_Key.UNOFFICIAL

YARA.SEKOIA_Rat_Win_Asyncrat.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Launching a service

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

Creating a window

Connection attempt

Sending a custom TCP request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm asyncrat asyncrat base64 fareit fingerprint lolbin obfuscated razy reconnaissance reg samas schtasks vbnet

Link:

https://www.filescan.io/uploads/6a9c28a5d76ce3bf33c4ce71/reports/df6036b5-58ae-48d2-b533-d7dfd9b77052/overview

Verdict:

Malicious

Labled as:

AsyncRAT.Marte.B.Generic

Link:

https://www.hybrid-analysis.com/sample/fb28d0aa4dfb2c2ebbb032c445abdb86a6fb6b6a89a14a0ae13fdd3530dc6789

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-09-03T19:02:00Z UTC

Last seen:

2026-09-07T11:35:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/fb28d0aa4dfb2c2ebbb032c445abdb86a6fb6b6a89a14a0ae13fdd3530dc6789/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/12e032e3-c312-4e5d-9b6e-a9fe5370685f

Result

Threat name:

AsyncRAT

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1969005

Signature

Antivirus / Scanner detection for submitted sample

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 submitted file

Protects its processes via BreakOnTermination flag

Sample uses string decryption to hide its real strings

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

Yara detected AsyncRAT

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/fb28d0aa4dfb2c2ebbb032c445abdb86a6fb6b6a89a14a0ae13fdd3530dc6789

Verdict:

AsyncRAT

YARA:

14 match(es)

Tags:

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

Malware Config

C2 Extraction:

CNC: 127.0.0.1,163.245.215.235
PORT: 6606,7707,8808,8848

Link:

https://app.malva.re/file/041cb077e984d4e46c482c6b4e72ddcb

Detection:

asyncrat

Link:

https://mwdb.cert.pl/sample/fb28d0aa4dfb2c2ebbb032c445abdb86a6fb6b6a89a14a0ae13fdd3530dc6789/

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2026-09-03 23:28:00 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

33 of 38 (86.84%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=7munbksn7mwc5o5qglcelk63q2tpw23krgquucxbh7otkmg4m6eq._file

Verdict:

malicious

Label(s):

AsyncRAT

Link:

https://reports.threatray.com/17d8cef6-8232-4a30-b99f-fd134863ae8c

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:cinema discovery rat suricata

Link:

https://tria.ge/reports/260905-rx4wvawhkf/

Behaviour

Suspicious use of AdjustPrivilegeToken

System Location Discovery: System Language Discovery

Family: AsyncRat

Suricata alert: AsyncRAT Malware Default X.509 Certificate Detected - Inbound

Malware Config

C2 Extraction:

163.245.215.235:6606
163.245.215.235:7707
163.245.215.235:8808
163.245.215.235:8848

Unpacked files

SH256 hash:

fb28d0aa4dfb2c2ebbb032c445abdb86a6fb6b6a89a14a0ae13fdd3530dc6789

MD5 hash:

041cb077e984d4e46c482c6b4e72ddcb

SHA1 hash:

5feabe889ca765acd0333f4751e1bdf60242c063

Detections:

AsyncRAT

win_asyncrat_w0

Link:

https://www.unpac.me/results/fbd58390-d3ee-493e-8504-6aa64a8e68d7/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/fb28d0aa4dfb/report/overview.html

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/fb28d0aa4dfb2c2ebbb032c445abdb86a6fb6b6a89a14a0ae13fdd3530dc6789

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:	kevoreilly, JPCERT/CC Incident Response Group
Description:	AsyncRat Payload

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

Rule name:	AsyncRAT_057B Create hunting rule
Author:	kirkderp
Description:	AsyncRAT 0.5.7B -- minimal .NET RAT with PBKDF2 key derivation and MessagePack serialization
Reference:	https://github.com/kirkderp/yara

Rule name:	asyncrat_kingrat Create hunting rule
Author:	jeFF0Falltrades

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 (https://www.lukeacha.com)
Description:	Generic detection for multiple RAT families, PUPs, packers and suspicious executables. NOTE: This rule may produce false positives. Updated May 2026 to reduce False Positives.

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:	rat_win_asyncrat Create hunting rule
Author:	Sekoia.io
Description:	Detect AsyncRAT based on specific strings

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:	VECT_Ransomware Create hunting rule
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 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/84137/

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