MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3. 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: 18

Intelligence 18 IOCs YARA 17 File information Comments 1

SHA256 hash:	2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3
SHA3-384 hash:	05b692fb96ce6f47d476780d009a2db2260e4671194d238f754b149aeb45eafa1466962037872762444e3957bd64eb41
SHA1 hash:	0d812627fad6e656880f6f2722f795292d055e1f
MD5 hash:	df0c36ebdb871c0dea060e67a5286e6d
humanhash:	idaho-fruit-oxygen-uranus
File name:	Slicer.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	345'088 bytes
First seen:	2025-08-13 05:00:54 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep	3072:obyX7QhPZOWxgbFl0AuKKOH9XzkI9bzx03Vkh/SQ96BsJDhShFB:8yLwP6bHnuK5j9fmVkh2Bss
Threatray	1'402 similar samples on MalwareBazaar
TLSH	T14E74B24862FC40DEF01B073D5C259A254634AC6FBE86DF6A6BCE7BDC29734919060B27
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	e4f0d9c0598c460b (13 x AsyncRAT)
Reporter	AntiSkidding
Tags:	AsyncRAT exe xworm

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

_2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3.exe

Verdict:

Malicious activity

Analysis date:

2025-08-13 05:01:50 UTC

Tags:

evasion pastebin auto-startup auto-reg crypto-regex xworm

Link:

https://app.any.run/tasks/5b1b8c41-5708-4371-a15f-7aebbce0a457

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/21033/

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689c1c269901157561b5ad2a

Tags:

asyncrat dropper virus 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

Sending a custom TCP request

Creating a file in the %AppData% directory

Launching a process

Enabling the 'hidden' option for recently created files

Creating a window

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

Creating a file in the mass storage device

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Enabling threat expansion on mass storage devices

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 cmd explorer fingerprint lolbin obfuscated obfuscated reconnaissance schtasks vbnet xworm

Link:

https://www.filescan.io/uploads/689c1c23397fd3ce6fa70a4a/reports/17e27ad8-9a01-40ea-b0ce-3ea1faa807e4/overview

Verdict:

Malicious

Labled as:

Jalapeno.Generic

Link:

https://www.hybrid-analysis.com/sample/2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3

Malware family:

XWorm

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/be28bbb9-09f4-4ed2-abce-634974d4dffe

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3

Verdict:

inconclusive

YARA:

13 match(es)

Tags:

.Net Executable PE (Portable Executable) SOS: 0.95 Win 32 Exe x86

Link:

https://app.malva.re/file/df0c36ebdb871c0dea060e67a5286e6d

Detection:

xworm

Link:

https://mwdb.cert.pl/sample/2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3/

Verdict:

Malicious

Threat:

Family.XWORM

Link:

https://tip.neiki.dev/file/2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3

Threat name:

Win32.Spyware.AsyncRAT

Status:

Malicious

First seen:

2025-08-13 05:01:24 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

33 of 38 (86.84%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=fomqkt72dsi65dl23feiu34dke3nwkheyhscxbo3pqhqjevkt7rq._file

Verdict:

malicious

Label(s):

xworm

AsyncRAT

415abd7fb89262dc08b47ed0e322ba556b764f331d33e6b96da9aa3bd16c985b

AsyncRAT

55c7df73987110622c80d01a2ebddab323fc212e55f9453a7992ae91c04da10e

AsyncRAT

c91fec2baba671461bc033211721c140d0337eaaa0a83092b4d83bab2f9f9805

AsyncRAT

error

AsyncRAT

fd72e76aa2d5edb9c2e25b62e1bd3c348c13951b4524d21369920b79d79460e2

AsyncRAT

+ 1'392 additional samples on MalwareBazaar

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm rat trojan

Link:

https://tria.ge/reports/250813-fnqr3ssjz3/

Behaviour

Suspicious use of AdjustPrivilegeToken

Looks up external IP address via web service

Detect Xworm Payload

Xworm

Xworm family

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/23e38487-5765-465f-a90a-247f28c4aa64

Unpacked files

SH256 hash:

2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3

MD5 hash:

df0c36ebdb871c0dea060e67a5286e6d

SHA1 hash:

0d812627fad6e656880f6f2722f795292d055e1f

Detections:

win_xworm_w0

Link:

https://www.unpac.me/results/7a2d4121-f8fa-40f2-a9ec-2351ecd605f5/

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/2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3

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:	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:	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.

Cape

https://www.capesandbox.com/analysis/21033/

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 2025-08-13 05:05:54 UTC

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

{
"sha256": "2b99054ffa1c91ee8d7ad9488a6f835136db28e4c1e42b85db7c0f0492aa9fe3",
"yara_possible_family": "xworm",
"key": "eff1511cff9d39c766c243e077bf95eff1511cff9d39c766c243e077bf959600",
"salt": "None",
"config": {
"obfuscated_key_1": "https://pastebin.com/raw/b1cPnfEn",
"obfuscated_key_2": "<666666>",
"obfuscated_key_3": "<Xwormmm>",
"obfuscated_key_4": "1",
"obfuscated_key_5": "Slicer",
"obfuscated_key_6": "Slicer.exe",
"obfuscated_key_7": "%AppData%",
"obfuscated_key_8": "Slicer.exe",
"obfuscated_key_9": "FYp9aaaFPQdfkUsx",
"obfuscated_key_10": "\\Log.tmp",
"obfuscated_key_11": "BTC_Address",
"obfuscated_key_12": "ETH_Address",
"obfuscated_key_13": "TRC20_Address"
}
}