MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce. 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 YARA 22 File information Comments 1

SHA256 hash:	d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce
SHA3-384 hash:	3a326381e10f50b899d37bb6766beafa852adfe3dbed5835141aea7e27d787bf9fcfed388656ab8ab85db47b554b0d9f
SHA1 hash:	9b3e46f7de3e7c71e7306380a833142fee021a55
MD5 hash:	8efcae1aa1f982a41f7cd2bd612f5aed
humanhash:	apart-fix-washington-delaware
File name:	AU88APP.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	27'136 bytes
First seen:	2026-05-22 15:11:27 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'066 x AgentTesla, 20'017 x Formbook, 12'352 x SnakeKeylogger)
ssdeep	384:ZgSVEEMiNPWmeOsVa/KFHbh0yH9qbuUscCbQxnCJfJBndnjJtKCm:ZgSVXFg1VDHF0wIb1BBiBnMCm
TLSH	T1DDC22B0833D8C676D1FE4ABEC83385008779E55B9923D75A5FC490AE29237CD8A18FE4
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 c2 exe RAT windows

Anonymous

Confirmed malware sample collected from phishing/social media abuse campaign.

Intelligence

File Origin

# of uploads :

# of downloads :

211

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

AsyncRAT

Details

Link:

https://research.acce.ciphertechsolutions.com/results/35d95a24-2e61-4934-9d2f-c73fdfbf81cb/

Malware family:

asyncrat

ID:

File name:

AU88APP.exe

Verdict:

Malicious activity

Analysis date:

2026-05-22 15:12:03 UTC

Tags:

rat asyncrat

Link:

https://app.any.run/tasks/d34d95d3-0387-47ae-ad4f-4c60c29f7ecf

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/67554/

Detection(s):

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=6a10723598070a72bb9cdf98

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

Launching a service

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 fingerprint lolbin obfuscated reconnaissance schtasks vbnet

Link:

https://www.filescan.io/uploads/6a107228056ea44c45388bd2/reports/0e82c0cc-539e-4fbd-97aa-cdbdf4b7e387/overview

Verdict:

Malicious

Labled as:

AsyncRAT.Marte.B.Generic

Link:

https://www.hybrid-analysis.com/sample/d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-05-22T12:16:00Z UTC

Last seen:

2026-05-23T19:00:00Z UTC

Hits:

~10

Detections:

HEUR:Backdoor.MSIL.SheetRat.gen HEUR:Backdoor.MSIL.Crysan.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d Backdoor.MSIL.Crysan.c Backdoor.MSIL.Crysan.b

Link:

https://opentip.kaspersky.com/d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce/results?tab=lookup

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/5cd29dc9-0b37-4321-b2f6-6a49b4d4c21c

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce/

Verdict:

Malicious

Threat:

Family.ASYNCRAT

Link:

https://tip.neiki.dev/file/d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce

Threat name:

Win32.Backdoor.AsyncRAT

Status:

Malicious

First seen:

2026-05-22 15:12:42 UTC

File Type:

PE (.Net Exe)

AV detection:

21 of 24 (87.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=2o5w5nekh7u6rclqx3b4hladubrr3hq3xmdpys2l6z26dvyeaxha._file

Verdict:

malicious

Label(s):

asyncrat

Similar samples:

error

AsyncRAT

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat discovery rat

Link:

https://tria.ge/reports/260522-skxgnsfs4j/

Behaviour

Suspicious use of AdjustPrivilegeToken

System Location Discovery: System Language Discovery

Family: AsyncRat

Unpacked files

SH256 hash:

d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce

MD5 hash:

8efcae1aa1f982a41f7cd2bd612f5aed

SHA1 hash:

9b3e46f7de3e7c71e7306380a833142fee021a55

Detections:

win_asyncrat_w0

AsyncRAT

Link:

https://www.unpac.me/results/a89e1719-ba8c-4c93-8f5a-b3553e9c289b/

Malware family:

AsyncRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/d3bb6eb48a3f/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/d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce

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:	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:	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.

Web download

AsyncRAT

exe d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce

(this sample)

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/67554/

Comments

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commented on 2026-05-22 15:16:02 UTC

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

{
"sha256": "d3bb6eb48a3fe9e88970bec3c3ac03a0631d9e1bbb06fc4b4bf675e1d70405ce",
"yara_possible_family": "asyncrat",
"key": "None",
"salt": "None",
"config": {
"Ports": [
"443"
],
"Hosts": [
"caza.it.com"
],
"Version": "0.5.7B",
"Install": "false",
"InstallFolder": "AppData",
"InstallFile": "Test.exe",
"Key": "NYAN CAT",
"Mutex": "%MTX%",
"Certificate": "%Certificate%",
"Serversignature": "%Serversignature%",
"Anti": "false",
"Pastebin": "null",
"BDOS": "false",
"Delay": "0",
"Group": "Debug"
}
}