MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29. 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: 17

Intelligence 17 IOCs 1 YARA 27 File information Comments 1

SHA256 hash:	4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29
SHA3-384 hash:	1cf50ece0aa2d2c993ab2b312045c7af54df56ec6ba73c17b417ca23aed6924a18e0c043d875470ddc0a7ed900a479e0
SHA1 hash:	a44be384a8c20df29544e9aa86f2a28679e3566b
MD5 hash:	addb2f9bc9ffad336cbee648fdfcf138
humanhash:	pizza-charlie-ink-kentucky
File name:	mod_Ass_shellcode.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	52'520 bytes
First seen:	2026-03-31 17:16:29 UTC
Last seen:	2026-03-31 17:54:42 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'853 x AgentTesla, 19'780 x Formbook, 12'304 x SnakeKeylogger)
ssdeep	768:Hu/6ZTgoiziWUUM9rmo2qrrKjGKG6PIyzjbFgX3iUuwXPjNnKkBDZjx:Hu/6ZTgle2mKYDy3bCXSUdPjFtdjx
TLSH	T10C332B003BE8812BF2BE5F789CF25145467AF2A36603DA4D2CC451D75623FC69A426FE
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	BastianHein
Tags:	AsyncRAT exe

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
12.202.180.133:6745	https://threatfox.abuse.ch/ioc/1779702/

Intelligence

File Origin

# of uploads :

# of downloads :

125

Origin country :

Vendor Threat Intelligence

Gathering data

Malware family:

asyncrat

ID:

File name:

_4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29.exe

Verdict:

Malicious activity

Analysis date:

2026-03-31 17:17:40 UTC

Tags:

asyncrat rat

Link:

https://app.any.run/tasks/5454b7de-944f-488c-96cb-f4cee1898eb1

Note:

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

Gathering data

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

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69cc01963a18a6e1ddf016b4

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Using the Windows Management Instrumentation requests

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

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

Link:

https://www.filescan.io/uploads/69cc01952346b9da57b40aa3/reports/810fd86b-8421-4136-835b-ef011ac09b57/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29

Result

Gathering data

Verdict:

Unknown

File Type:

Link:

https://opentip.kaspersky.com/4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/14baad1f-f3b4-4974-8619-6d60d11b2659

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29

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: uejrhnfq.duckdns.org
PORT: 6745

Link:

https://app.malva.re/file/addb2f9bc9ffad336cbee648fdfcf138

Detection:

asyncrat

Link:

https://mwdb.cert.pl/sample/4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29/

Verdict:

Malicious

Threat:

Family.ANARCHYRAT

Link:

https://tip.neiki.dev/file/4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29

Threat name:

ByteCode-MSIL.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2026-03-31 17:17:49 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

28 of 36 (77.78%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jo2kga5y4sdtian6dtvgrvil3ksfirywqxodbllb5hxxiymbviuq._file

Verdict:

malicious

Label(s):

asyncrat

Similar samples:

error

AsyncRAT

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat botnet:default discovery rat

Link:

https://tria.ge/reports/260331-vtrc5acs8m/

Behaviour

Suspicious use of AdjustPrivilegeToken

System Location Discovery: System Language Discovery

AsyncRat

Asyncrat family

Malware Config

C2 Extraction:

uejrhnfq.duckdns.org:6745

Unpacked files

SH256 hash:

4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29

MD5 hash:

addb2f9bc9ffad336cbee648fdfcf138

SHA1 hash:

a44be384a8c20df29544e9aa86f2a28679e3566b

Detections:

win_asyncrat_w0

AsyncRAT

Link:

https://www.unpac.me/results/71a2cc85-8cbb-41a9-a566-4e235c5d9c76/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4bb4a303b8e4/report/overview.html

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 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_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 (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:	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/59931/

Comments

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commented on 2026-03-31 17:21:16 UTC

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

{
"sha256": "4bb4a303b8e4873401be1cea68d50bdaa454471685dc30ad61e9ef746181aa29",
"yara_possible_family": "asyncrat",
"key": "20f1a25e3cf52ac0109726fa732222e4300f73fab1c07a9008ae3b657a283872",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"Ports": [
"6745"
],
"Hosts": [
"uejrhnfq.duckdns.org"
],
"Version": "0.5.7B",
"Install": "false",
"InstallFolder": "%AppData%",
"InstallFile": "",
"Key": "RmY2VnlnR0VtWEx4WjE3dVUxZnFCd3l2N05vdDVKdHc=",
"Mutex": "AsyncMutex_6SI8OkPnk",
"Certificate": "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",
"Serversignature": "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",
"Anti": "false",
"Pastebin": "null",
"BDOS": "false",
"Hwid": "null",
"Delay": "3",
"Group": "Default"
}
}