MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc572821074fcc0598a49737c5a8f7323402c41e6ce75fda96e8c899f67f39dd. 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 21 File information Comments 1

SHA256 hash: bc572821074fcc0598a49737c5a8f7323402c41e6ce75fda96e8c899f67f39dd
SHA3-384 hash: b41ff4707736775299dce01bd4b2c134e427803c59de4580f32a50c4f521af0c9e2af2d0645082b2cdc0ebd82dae5162
SHA1 hash: 9fdc43beac082c86e3cb2da2561883c06e11799f
MD5 hash: 5d12da8e154773c13a05847242825743
humanhash: india-don-twelve-fanta
File name:XClient.exe
Download: download sample
Signature AsyncRAT
File size:67'072 bytes
First seen:2025-04-30 02:20:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:2JU0MrfJeclBFJ9Zd7A6iOCeBwdErz5rtIyGyosE8p9G5:2Pc3FJ9ZqOCRU5iDSY
Threatray 1'144 similar samples on MalwareBazaar
TLSH T1C6637D883BD45611D9FFABF559B271060B75F9138D03D79E0CC88A9A2B7BBC08A407D6
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 d4c4ccb273554d71 (1 x AsyncRAT)
Reporter dsdsdsd
Tags:AsyncRAT exe xworm

Intelligence


File Origin
# of uploads :
1
# of downloads :
504
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
XClient.exe
Verdict:
Malicious activity
Analysis date:
2025-04-30 02:24:23 UTC
Tags:
evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
asyncrat dropper virus remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Sending a custom TCP request
Enabling the 'hidden' option for recently created files
Creating a window
Creating a process from a recently created file
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 asyncrat backdoor cmd explorer fingerprint lolbin njrat njrat obfuscated packed packed packer_detected rat reconnaissance schtasks vbnet xworm
Result
Threat name:
AsyncRAT, XWorm
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1677721 Sample: XClient.exe Startdate: 30/04/2025 Architecture: WINDOWS Score: 100 42 pastebin.com 2->42 44 ip-api.com 2->44 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 60 12 other signatures 2->60 8 XClient.exe 15 5 2->8         started        13 XClient.exe 2->13         started        15 svchost.exe 1 1 2->15         started        17 3 other processes 2->17 signatures3 58 Connects to a pastebin service (likely for C&C) 42->58 process4 dnsIp5 46 ip-api.com 208.95.112.1, 49713, 80 TUT-ASUS United States 8->46 48 pastebin.com 172.67.25.94, 443, 49724, 49725 CLOUDFLARENETUS United States 8->48 38 C:\Users\user\AppData\Roaming\XClient.exe, PE32 8->38 dropped 64 Bypasses PowerShell execution policy 8->64 66 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->66 68 Uses schtasks.exe or at.exe to add and modify task schedules 8->68 72 2 other signatures 8->72 19 powershell.exe 23 8->19         started        22 powershell.exe 23 8->22         started        24 powershell.exe 23 8->24         started        26 2 other processes 8->26 40 C:\Users\user\AppData\...\XClient.exe.log, CSV 13->40 dropped 70 Antivirus detection for dropped file 13->70 50 127.0.0.1 unknown unknown 15->50 file6 signatures7 process8 signatures9 62 Loading BitLocker PowerShell Module 19->62 28 conhost.exe 19->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        36 conhost.exe 26->36         started        process10
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Status:
Malicious
First seen:
2025-04-30 05:20:37 UTC
AV detection:
32 of 38 (84.21%)
Threat level:
  2/5
Result
Malware family:
Score:
  10/10
Tags:
family:xworm execution persistence rat trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
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
Verdict:
Malicious
Tags:
rat xworm Win.Packed.njRAT-10002074-1 external_ip_lookup
YARA:
win_mal_XWorm EXE_RAT_XWorm_April2024 MALWARE_Win_XWorm win_xworm_bytestring
Unpacked files
SH256 hash:
bc572821074fcc0598a49737c5a8f7323402c41e6ce75fda96e8c899f67f39dd
MD5 hash:
5d12da8e154773c13a05847242825743
SHA1 hash:
9fdc43beac082c86e3cb2da2561883c06e11799f
Detections:
win_xworm_w0 XWorm
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:ByteCode_MSIL_Backdoor_AsyncRAT
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:EXE_RAT_XWorm_April2024
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Author:ditekSHen
Description:Detects XWorm
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:Windows_Trojan_XWorm_b7d6eaa8
Author:Elastic Security
Rule name:win_xworm_bytestring
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm
Rule name:win_xworm_w0
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:XWorm
Author:ditekSHen
Description:Detects XWorm
Rule name:xworm
Author:jeFF0Falltrades
Rule name:xworm_kingrat
Author:jeFF0Falltrades

File information


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

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments



Avatar
commented on 2025-04-30 02:25:50 UTC

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

{
"sha256": "bc572821074fcc0598a49737c5a8f7323402c41e6ce75fda96e8c899f67f39dd",
"yara_possible_family": "xworm",
"key": "28d507e124f5d8c48ed47bb55c523e28d507e124f5d8c48ed47bb55c523e3400",
"salt": "None",
"config": {
"Hosts": [
"https://pastebin.com/raw/H3wFXmEi"
],
"KEY": "<123456789>",
"SPL": "<Xwormmm>",
"Sleep": 3,
"Group": "XWorm V5.6",
"USBNM": "USB.exe",
"InstallDir": "%AppData%",
"InstallStr": "XClient.exe",
"Mutex": "uMxI7YUgF5EdPQiP",
"LoggerPath": "\\Log.tmp"
}
}