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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9900143d04ff107fcc5f5b6b09c780cff3bdac77ab966a9e7870ea2300bd4c93. 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: 16


Intelligence 16 IOCs YARA 23 File information Comments

SHA256 hash: 9900143d04ff107fcc5f5b6b09c780cff3bdac77ab966a9e7870ea2300bd4c93
SHA3-384 hash: 3baea2542e114941e391a52f044d76ce1581f480ccf3099383d0d9db0850c13da2990591b686b52d5efa2dc700e2c2a4
SHA1 hash: 8aeedbbbb9748ac518ea5da914f161000b1ec98b
MD5 hash: 2f2642408392efbc9eb3850fd4c57755
humanhash: ceiling-carpet-helium-oklahoma
File name:9900143d04ff107fcc5f5b6b09c780cff3bdac77ab966a9e7870ea2300bd4c93.exe
Download: download sample
Signature AsyncRAT
File size:416'256 bytes
First seen:2026-10-12 08:15:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'291 x AgentTesla, 20'706 x Formbook, 12'401 x SnakeKeylogger)
ssdeep 12288:vsbZcNIRcD2MHPOqNkXXDjq+xTl4voQZtt0RbodEqFY7wGaI27Jk:FOZGkXf4g+JD7
TLSH T10F94892869BB505EA173FF613EECB9DFDDDF6A622509655B108103074A22F80EF4293D
TrID 72.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.4% (.EXE) Win64 Executable (generic) (6522/11/2)
4.4% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter Tuxxin
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
258
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
xls
Verdict:
Malicious activity
Analysis date:
2026-10-12 07:55:12 UTC
Tags:
macros macros-on-open loader susp-powershell auto-reg xworm stealer

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

Behaviour
Creating a file in the %temp% directory
Launching a process
Creating a file
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a system process
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-11T21:16:00Z UTC
Last seen:
2026-10-14T06:35:00Z UTC
Hits:
~1000
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains suspicious base64 encoded strings
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential Privilege Escalation using Task Scheduler highest RunLevel
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Child Process of AspNetCompiler
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Powershell decode and execute
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1985812 Sample: naDTvFo16R.exe Startdate: 12/10/2026 Architecture: WINDOWS Score: 100 82 keyauth.win 2->82 88 Suricata IDS alerts for network traffic 2->88 90 Found malware configuration 2->90 92 Malicious sample detected (through community Yara rule) 2->92 94 14 other signatures 2->94 10 naDTvFo16R.exe 2 2->10         started        14 bin.exe 2->14         started        16 bin.exe 2->16         started        18 5 other processes 2->18 signatures3 process4 file5 78 C:\Users\user\AppData\Local\...\tmp23840.tmp, ASCII 10->78 dropped 80 C:\Users\user\AppData\...\naDTvFo16R.exe.log, ASCII 10->80 dropped 112 Suspicious powershell command line found 10->112 114 Bypasses PowerShell execution policy 10->114 20 powershell.exe 17 10->20         started        23 WMIADAP.exe 10->23         started        25 conhost.exe 14->25         started        27 conhost.exe 16->27         started        29 conhost.exe 18->29         started        31 conhost.exe 18->31         started        33 conhost.exe 18->33         started        35 2 other processes 18->35 signatures6 process7 signatures8 96 Writes to foreign memory regions 20->96 98 Allocates memory in foreign processes 20->98 100 Injects a PE file into a foreign processes 20->100 37 aspnet_compiler.exe 3 6 20->37         started        42 aspnet_compiler.exe 20->42         started        44 conhost.exe 20->44         started        46 aspnet_compiler.exe 20->46         started        process9 dnsIp10 84 84.38.133.187, 3270, 49724 DATACLUB-NLLV Netherlands 37->84 76 C:\Users\user\AppData\Roaming\bin.exe, PE32 37->76 dropped 102 Tries to harvest and steal browser information (history, passwords, etc) 37->102 104 Adds a directory exclusion to Windows Defender 37->104 48 aspnet_compiler.exe 37->48         started        51 csc.exe 37->51         started        54 csc.exe 37->54         started        56 5 other processes 37->56 106 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 42->106 108 Uses schtasks.exe or at.exe to add and modify task schedules 42->108 110 Potential Privilege Escalation using Task Scheduler highest RunLevel 42->110 file11 signatures12 process13 file14 86 Antivirus detection for dropped file 48->86 74 C:\Users\user\AppData\...\aspnet_compiler.exe, PE32 51->74 dropped 58 conhost.exe 51->58         started        60 cvtres.exe 51->60         started        62 conhost.exe 54->62         started        64 cvtres.exe 54->64         started        66 conhost.exe 56->66         started        68 conhost.exe 56->68         started        70 conhost.exe 56->70         started        72 2 other processes 56->72 signatures15 process16
Verdict:
inconclusive
YARA:
12 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.22 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.Generic
Status:
Suspicious
First seen:
2026-10-11 23:40:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
19 of 22 (86.36%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:xworm collection defense_evasion discovery execution persistence rat trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
System Location Discovery: System Language Discovery
Enumerates video capture drivers
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Family: Xworm
Malware Config
C2 Extraction:
84.38.133.187:3270
Unpacked files
SH256 hash:
9900143d04ff107fcc5f5b6b09c780cff3bdac77ab966a9e7870ea2300bd4c93
MD5 hash:
2f2642408392efbc9eb3850fd4c57755
SHA1 hash:
8aeedbbbb9748ac518ea5da914f161000b1ec98b
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: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:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
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:MAL_AsyncRAT_Family_V_0_5_8
Author:Trezzza
Description:Detects AsyncRAT version 0.5.8 and some other versions of AsyncRAT. The name reflects the analysed sample.
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Rule name:rat_win_xworm_v3
Author:Sekoia.io
Description:Finds XWorm (version XClient, v3) samples based on characteristic strings
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_CMD_Powershell_Usage
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
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:win_dotnet_vb_stealer_rat
Author:Arrbat
Description:Detects .NET/VB executables with stealer/RAT capabilities (sockets, HTTP, processes, registry, etc).
Rule name:WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait
Author:Marjoriefort
Description:Detects XWorm (pe, etat extrait)
Rule name:WIN_Sample_Unique_69354b41
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe
Rule name:win_xworm_w0
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:xworm
Author:jeFF0Falltrades

File information


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

Web download

AsyncRAT

Executable exe 9900143d04ff107fcc5f5b6b09c780cff3bdac77ab966a9e7870ea2300bd4c93

(this sample)

  
Delivery method
Distributed via web download

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