MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2. 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: 19

Intelligence 19 IOCs YARA 17 File information Comments 1

SHA256 hash:	41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2
SHA3-384 hash:	37d49af887f7a7ab2c8973e8110d58de81664d356954c1371df7890093bcb7cefaecaf45942adf247431828040b54b8b
SHA1 hash:	588be30d103bc8aeb1bd6e442db1c7c53eb4856e
MD5 hash:	274e76d19ed5d553fdd0ad66362bc22f
humanhash:	nine-louisiana-kentucky-cardinal
File name:	XClient.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	179'712 bytes
First seen:	2025-05-31 21:15:55 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'097 x AgentTesla, 20'115 x Formbook, 12'356 x SnakeKeylogger)
ssdeep	3072:Khn+Up0u0HDbfdbpxsmYOGNkBz65/M6If+3Js+3JFkKeTno:f9bLstkxBt25
Threatray	1'216 similar samples on MalwareBazaar
TLSH	T1E5044A42B790C2A1E0B94B73D4A6E5F24F36BD5BEF06641F3080BB4739335519D13A6A
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
dhash icon	58c8d1d0cecbeeec (23 x AsyncRAT, 12 x XWorm, 6 x QuasarRAT)
Reporter	juroots
Tags:	85-203-4-56 AsyncRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

693

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

XClient.exe

Verdict:

Malicious activity

Analysis date:

2025-05-31 21:16:28 UTC

Tags:

evasion auto-startup auto-reg xworm remote

Link:

https://app.any.run/tasks/01419ec3-9201-4753-ac7b-410b6b4294c1

Note:

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

Detection:

XWorm

Link:

https://www.capesandbox.com/analysis/6599/

Detection(s):

Win.Packed.njRAT-10002074-1

Win.Packed.Msilzilla-10002982-0

Win.Packed.Msilzilla-10019837-0

Win.Packed.Loveletter-10023052-0

Win.Dropper.Nanocore-10024427-0

Win.Packed.Loveletter-10024677-0

Win.Packed.Msilzilla-10024808-0

Win.Packed.Msilzilla-10026193-0

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=683b728b668438e362e92dd7

Tags:

asyncrat stration dropper remo

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

DNS request

Connection attempt

Sending an HTTP GET request

Creating a process with a hidden window

Creating a file in the %AppData% directory

Launching a process

Creating a window

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Setting a global event handler for the keyboard

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm asyncrat backdoor base64 config-extracted fingerprint lolbin obfuscated obfuscated rat reconnaissance schtasks vbnet xworm

Link:

https://www.filescan.io/uploads/683b71a52d1d8b12425e1f50/reports/d7e995ed-b9f1-4e21-b407-4c1b9a0fed8c/overview

Verdict:

Malicious

Labled as:

Jalapeno.Generic

Link:

https://www.hybrid-analysis.com/sample/41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2

Malware family:

XWorm

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/0ae491e4-b484-4b33-a444-2a2472d604e2

Result

Threat name:

XWorm

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1703089

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

C2 URLs / IPs found in malware configuration

Check if machine is in data center or colocation facility

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

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 XWorm

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2

Detection:

xworm

Link:

https://mwdb.cert.pl/sample/41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2/

Threat name:

ByteCode-MSIL.Spyware.AsyncRAT

Status:

Malicious

First seen:

2025-05-31 21:16:22 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ig2dlp2cb32v3z5yqqtr76afmndoazcvyyphetjlc6rqrut63hba._file

Verdict:

malicious

Label(s):

xworm

AsyncRAT

310c6e4649169990ced7e39f97fade780c725e8ecac3c7a6fe4a8e3d1b874bc8

AsyncRAT

6b87ed040becee277c259003348710f4d43498637e7310916b58f241724ace58

AsyncRAT

9c99208882baac0d4835a4b33405b4d3dd2eea6291afba7d90a907c1a0ac8f7c

AsyncRAT

a2bf7e2d657258fc5a6a6b5b7f8994a7abf59260e83e0e4be4127531fbbf959c

AsyncRAT

error

AsyncRAT

+ 1'206 additional samples on MalwareBazaar

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm execution persistence rat trojan

Link:

https://tria.ge/reports/250531-z4lylsgp9y/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Adds Run key to start application

Looks up external IP address via web service

Checks computer location settings

Drops startup file

Executes dropped EXE

Command and Scripting Interpreter: PowerShell

Detect Xworm Payload

Xworm

Xworm family

Malware Config

C2 Extraction:

85.203.4.56:4444

Verdict:

Malicious

Tags:

rat xworm Win.Packed.njRAT-10002074-1 external_ip_lookup

YARA:

EXE_RAT_XWorm_April2024 MALWARE_Win_XWorm win_mal_XWorm win_xworm_bytestring

Link:

https://app.threat.zone/submission/abbe458f-54af-4a26-916f-5000baf9c3df

Unpacked files

SH256 hash:

41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2

MD5 hash:

274e76d19ed5d553fdd0ad66362bc22f

SHA1 hash:

588be30d103bc8aeb1bd6e442db1c7c53eb4856e

Detections:

win_xworm_w0

XWorm

Link:

https://www.unpac.me/results/c78e2bb4-151e-4d21-9b5e-9b378ee5cc52/

Malware family:

XWorm

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/41b435bf420e/report/overview.html

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2

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:	ByteCode_MSIL_Backdoor_AsyncRAT Create hunting rule
Author:	ReversingLabs
Description:	Yara rule that detects AsyncRAT backdoor.

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

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

Rule name:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

Rule name:	EXE_RAT_XWorm_April2024 Create hunting rule
Author:	Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell

Rule name:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	MALWARE_Win_AsyncRAT Create hunting rule
Author:	ditekSHen
Description:	Detects AsyncRAT

Rule name:	MALWARE_Win_XWorm Create hunting rule
Author:	ditekSHen
Description:	Detects XWorm

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:	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:	win_xworm_bytestring Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects bytestring present in unobfuscated xworm

Rule name:	win_xworm_w0 Create hunting rule
Author:	jeFF0Falltrades
Description:	Detects win.xworm.

Rule name:	xworm Create hunting rule
Author:	jeFF0Falltrades

Rule name:	XWorm Create hunting rule
Author:	ditekSHen
Description:	Detects XWorm

Rule name:	xworm_kingrat Create hunting rule
Author:	jeFF0Falltrades

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AsyncRAT

exe 41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2

(this sample)

Cape

https://www.capesandbox.com/analysis/6599/

URLhaus

https://urlhaus.abuse.ch/url/3556091/

Delivery method

Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

commented on 2025-05-31 21:20:54 UTC

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

{
"sha256": "41b435bf420ef55de7b884271ff8056346e06455c61e724d2b17a308d27ed9c2",
"yara_possible_family": "xworm",
"key": "e5573d966a6e832c5c6eb7cbe09c23e5573d966a6e832c5c6eb7cbe09c231d00",
"salt": "None",
"config": {
"Swgj00ksTzNaCS2jXMUX6GvS8XiLOyPlsIRbxyc2WiiUjRyAQbSiM": "85.203.4.56",
"yKLxxKjwyykOjC37Fy2fswj0WaDpfMx2eEVv6fus4rfheMok201hZ": "4444",
"IRMxZHwtjJBU0JdpeVYVuGgdn1LA8Q9oXOMmuVhQ6dTQfy6QoqTjf": "<123456789>",
"sTyhr8MvWYFnYvsGH4ywy4BSJhxgHgJasYhXhBx1TQzdP9tewJDAU": "<Xwormmm>",
"FC0CPMkeehbJFFEHtKNSiUErof3Yh6V3HGCa5keIDpbLJ13vGmVdQ": 3,
"s1jkiZgBRedVt2lXKRjY3uK27ifJy76QLsNeOq2QuGOpe2Ua33JxC": "XWorm V5.6",
"d605yTEOSgg3PjAeEZro2mGIlj6xLaPwTZtXUH6BElDK1tw97DVYx": "USB.exe",
"baFvVdXftRy78OCpIeK0JHuxFwRfe4BWOhU9CXkNt87h79MiQBb9S": "%AppData%",
"LnwVbgpOEBXJvvV2uBzUFXlT3AL53MW2Aacf4R5IDWWjWUIK2QfKv": "XClient.exe",
"dAiLuGHGbdNIxL5v1TZDNSLajUIcc5S8esqRv0zYuKgZcBlugoKwY": "ClKyHLsR1dbUS6oh",
"foLjWbQ9C28bEca90Z6etaEcZXRwSZUqcxZMb6P10SpHz7aSVgh4ODZkGaPAUEk0Tr6GZ87jEksylItkhpSTj": "\\Log.tmp"
}
}