MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d. 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:	4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d
SHA3-384 hash:	ccef3f63b6943fe1691b272f9332cacf8df6c3bfbf701f41090bb0e7d1589e3bd560180604c1824c506b930961fe76aa
SHA1 hash:	a860bfd105597b2713e882b38f843bfe1fda0e52
MD5 hash:	a53efb52f7208752b32f1bedf578c82c
humanhash:	alpha-mockingbird-dakota-johnny
File name:	GRAW.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	37'376 bytes
First seen:	2025-02-14 11:06:22 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	768:prlhqMlZhk6Js5GXj+ztSzFWPE9WIjOMhkiwu:pGibk6Js5M+z8FX9WIjOM2G
TLSH	T14AF24B48FBD44216D9ED7FF02BB365560730D607CE13EB9E4CD4849A6B27AC48E027A6
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	JAMESWT_WT
Tags:	196-251-92-64 AsyncRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

400

Origin country :

Vendor Threat Intelligence

Malware family:

njrat

ID:

File name:

New Text Document.exe.zip

Verdict:

Malicious activity

Analysis date:

2025-02-06 19:15:16 UTC

Tags:

arch-exec github loader opendir purecrypter purelogs lumma stealer auto njrat telegram fileshare hausbomber rat dcrat remote xworm netreactor evasion quasar asyncrat exfiltration formbook xloader bladabindi zgrat fody backdoor generic crypto-regex autoit privateloader websocket cobaltstrike

Link:

https://app.any.run/tasks/9af896ce-a7f2-497a-bd9d-35a0d9fefc09

Note:

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

Detection(s):

Win.Packed.njRAT-10002074-1

Win.Packed.Msilzilla-10019837-0

Win.Packed.Loveletter-10023052-0

Win.Packed.Msilzilla-10024501-0

Win.Packed.Loveletter-10024677-0

Win.Packed.Msilzilla-10026193-0

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67a4a9452dcee78dd819c2c0

Tags:

asyncrat keylog virus word

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a window

Using the Windows Management Instrumentation requests

Setting a global event handler for the keyboard

Connection attempt to an infection source

Sending a TCP request to an infection source

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm asyncrat backdoor njrat obfuscated obfuscated packed packer_detected rat vbnet xworm

Link:

https://www.filescan.io/uploads/67af23dfc2f1c1c7a0598e81/reports/87d4bac3-757e-4f40-9d6e-915ebe12f1bc/overview

Verdict:

Malicious

Labled as:

Jalapeno.Generic

Link:

https://www.hybrid-analysis.com/sample/4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

XWorm

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/3f3501c1-d23b-439b-92a0-82b4c0456c62

Result

Threat name:

XWorm

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1615026

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

Contains functionality to log keystrokes (.Net Source)

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

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sample uses string decryption to hide its real strings

Sigma detected: Potentially Suspicious Malware Callback Communication

Yara detected XWorm

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d

Detection:

xworm

Link:

https://mwdb.cert.pl/sample/4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d/

Threat name:

Win32.Exploit.XWorm

Status:

Malicious

First seen:

2025-02-06 10:36:11 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

32 of 37 (86.49%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=jonzq3spu2vwbwofhny2md4s7uagebrt24d62rj2utqz2vpdai6q._file

Verdict:

malicious

Label(s):

xworm

Similar samples:

error

AsyncRAT

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm discovery rat trojan

Link:

https://tria.ge/reports/250214-m723satnfr/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

System Location Discovery: System Language Discovery

System Network Configuration Discovery: Internet Connection Discovery

Downloads MZ/PE file

Detect Xworm Payload

Xworm

Xworm family

Malware Config

C2 Extraction:

157.20.182.169:1515

Verdict:

Malicious

Tags:

rat xworm Win.Packed.njRAT-10002074-1

YARA:

win_mal_XWorm MALWARE_Win_XWorm win_xworm_bytestring

Link:

https://app.threat.zone/submission/35487321-2cb8-42b9-b316-6d9f06998865

Unpacked files

SH256 hash:

4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d

MD5 hash:

a53efb52f7208752b32f1bedf578c82c

SHA1 hash:

a860bfd105597b2713e882b38f843bfe1fda0e52

Detections:

win_xworm_w0

Link:

https://www.unpac.me/results/82269453-ffba-45ad-8c75-88c466cd6c27/

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/4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d

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

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:	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:	Windows_Trojan_XWorm_b7d6eaa8 Create hunting rule
Author:	Elastic Security

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 4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3429872/

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3439259/

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

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commented on 2025-02-14 11:10:46 UTC

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

{
"sha256": "4b9b986e4fa6ab60d9c53b71a60f92fd00620633d707ed453aa4e19d55e3023d",
"yara_possible_family": "xworm",
"key": "a1e2612ed74e8894f478dc56bcdc45a1e2612ed74e8894f478dc56bcdc459e00",
"salt": "None",
"config": {
"Hosts": [
"157.20.182.169"
],
"Ports": [
"1515"
],
"KEY": "1515",
"SPL": "<Xwormmm>",
"Sleep": 3,
"Group": "XWorm V5.6",
"USBNM": "USB.exe",
"Mutex": "qqWjm3mbt3teI8Oz",
"LoggerPath": "\\Log.tmp"
}
}