MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f7b520f93027782e5db0e094dd1924c78e6562eb6156dd5d001ec4076413be4. 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: 13


Intelligence 13 IOCs YARA 15 File information Comments

SHA256 hash: 3f7b520f93027782e5db0e094dd1924c78e6562eb6156dd5d001ec4076413be4
SHA3-384 hash: a9b7e4fab3b5ad2c92ce8e9daa6d364fb6ac1233033196e959d0f2adfef9b592b7ffaf3b2083fcdbd6690195829bb6e4
SHA1 hash: c21a4ab95820f33bff18b333ff33a880f0a7e5dd
MD5 hash: dba98e15d9d6d186ec7b4029f49691a9
humanhash: louisiana-lithium-yellow-muppet
File name:92.255.85.2.bat
Download: download sample
Signature AsyncRAT
File size:290 bytes
First seen:2025-03-26 03:15:13 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/x-msdos-batch
ssdeep 6:hSG80QO0c5I1R3K/odqS/S51LFjh7RzZxktdEOlaAXkQxGRrVRV:0G80Qpc5I1k/odqkg1LFjh7hkBisehRV
Threatray 1'682 similar samples on MalwareBazaar
TLSH T113D0E71715D4FC4C87E7340048D7708510CD3507EA31CC545A2214F97CC4384D32B5C8
Magika txt
Reporter JAMESWT_WT
Tags:92-255-85-2 AsyncRAT bat booking ClickFix FakeCaptcha Spam-ITA

Intelligence


File Origin
# of uploads :
1
# of downloads :
110
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
tmp.bat
Verdict:
Malicious activity
Analysis date:
2025-03-25 23:05:25 UTC
Tags:
loader remote xworm

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
ransomware trojan sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Creating a file in the %temp% subdirectories
Creating a process with a hidden window
Creating a file
Searching for the window
Using the Windows Management Instrumentation requests
Connection attempt to an infection source
Forced shutdown of a system process
Sending a TCP request to an infection source
Sending an HTTP GET request to an infection source
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive powershell
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Empire PowerShell Request
Detected a base64 encoded Powershell HTTP request that is likely sourced from Empire.
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
Hidden Powershell
Detected a pivot to Powershell that utilizes commonly nefarious attributes such as '-windowstyle hidden'.
Result
Threat name:
Detection:
malicious
Classification:
bank.troj.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 very large strings
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Compiles code for process injection (via .Net compiler)
Encrypted powershell cmdline option found
Found malware configuration
Injects a PE file into a foreign processes
Malicious encrypted Powershell command line found
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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: Dot net compiler compiles file from suspicious location
Sigma detected: Net WebClient Casing Anomalies
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Suspicious PowerShell Encoded Command Patterns
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Writes to foreign memory regions
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1648674 Sample: 92.255.85.2.bat Startdate: 26/03/2025 Architecture: WINDOWS Score: 100 33 pki-goog.l.google.com 2->33 35 c.pki.goog 2->35 39 Suricata IDS alerts for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 14 other signatures 2->45 9 cmd.exe 1 2->9         started        signatures3 process4 signatures5 49 Malicious encrypted Powershell command line found 9->49 51 Suspicious powershell command line found 9->51 53 Encrypted powershell cmdline option found 9->53 55 Bypasses PowerShell execution policy 9->55 12 powershell.exe 14 22 9->12         started        17 conhost.exe 9->17         started        process6 dnsIp7 37 92.255.85.2, 4372, 49717, 49722 SOVTEL-ASRU Russian Federation 12->37 29 C:\Users\user\AppData\...\strztqek.cmdline, Unicode 12->29 dropped 31 C:\Users\user\AppData\Local\...\strztqek.0.cs, C++ 12->31 dropped 57 Writes to foreign memory regions 12->57 59 Compiles code for process injection (via .Net compiler) 12->59 61 Injects a PE file into a foreign processes 12->61 19 MSBuild.exe 2 12->19         started        22 csc.exe 3 12->22         started        file8 signatures9 process10 file11 47 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 19->47 27 C:\Users\user\AppData\Local\...\strztqek.dll, PE32 22->27 dropped 25 cvtres.exe 1 22->25         started        signatures12 process13
Threat name:
Script-BAT.Downloader.AsyncRAT
Status:
Malicious
First seen:
2025-03-26 03:13:07 UTC
File Type:
Text (Batch)
AV detection:
9 of 24 (37.50%)
Threat level:
  3/5
Result
Malware family:
Score:
  10/10
Tags:
family:xworm discovery execution rat trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
92.255.85.2:4372
Dropper Extraction:
http://92.255.85.2/a.mp4
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: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:SUSP_PS1_JAB_Pattern_Jun22_1
Author:Florian Roth (Nextron Systems)
Description:Detects suspicious UTF16 and Base64 encoded PowerShell code that starts with a $ sign and a single char variable
Reference:Internal Research
Rule name:win_xworm_w0
Author:jeFF0Falltrades
Description:Detects win.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.

Web download

AsyncRAT

Batch (bat) bat 3f7b520f93027782e5db0e094dd1924c78e6562eb6156dd5d001ec4076413be4

(this sample)

  
Delivery method
Distributed via web download

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