MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49977cffde2ebc3839e35c569c8a20b9c1364502ea6fb113c667edd79bd38e9e. 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: 9


Intelligence 9 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 49977cffde2ebc3839e35c569c8a20b9c1364502ea6fb113c667edd79bd38e9e
SHA3-384 hash: b29fd520ae9edd9bfa068a1c684a35a6280f4b415ef71e40b22d190b62585b922ec05a3a4d1b6ce3645c891d75833dd5
SHA1 hash: d0239add8d78c7d6cdb1c7bb46a06e8c29f7c15a
MD5 hash: 27845767e688e1fa7c4ce0dbf1e142cb
humanhash: cold-hotel-nebraska-seventeen
File name:PO# 4508555536.js
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:35'005'172 bytes
First seen:2026-08-26 13:18:26 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:hHw2Xx6gtXs/IZ5r+52Y6NK9D6NrZLssLV1H5QVFswzGZHovYEZRk5ft1sPNrg6N:fYxCPTKFC3DbR/XyX/
TLSH T18F775ED8FD04998C590B19EEB9C057326E61C6F1A039C643FCDD790DD28F0298ADE66E
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika txt
Reporter lowmal3
Tags:AsyncRAT js

Intelligence

File Origin
# of uploads :
1
# of downloads :
175
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
repaired
Link:
https://www.filescan.io/uploads/6a8ee7d2ff46129684da4970/reports/4300f9d7-0d0a-4d08-b86f-0956d7d440b8/overview
Verdict:
Malicious
Labled as:
GT:JS.Agent.1013
Link:
https://www.hybrid-analysis.com/sample/49977cffde2ebc3839e35c569c8a20b9c1364502ea6fb113c667edd79bd38e9e
Verdict:
Malicious
File Type:
text
First seen:
2026-08-25T22:29:00Z UTC
Last seen:
2026-08-28T04:56:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/49977cffde2ebc3839e35c569c8a20b9c1364502ea6fb113c667edd79bd38e9e/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1964101
Signature
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Drops script or batch files to the startup folder
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
Score:
66%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/49977cffde2ebc3839e35c569c8a20b9c1364502ea6fb113c667edd79bd38e9e
Gathering data
Threat name:
Win32.Trojan.Ravartar
Create hunting rule
Status:
Malicious
First seen:
2026-08-26 13:00:38 UTC
File Type:
Text (JavaScript)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jglxz766f26dqopdlrljzcraxhatmric5jx3ce6gm7w5pg6tr2pa._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution persistence privilege_escalation
Link:
https://tria.ge/reports/260826-qklztsek51/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Creates a file in the Startup directory
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/49977cffde2ebc3839e35c569c8a20b9c1364502ea6fb113c667edd79bd38e9e

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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: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:rat_win_xworm_v3
Create hunting rule
Author:Sekoia.io
Description:Finds XWorm (version XClient, v3) samples based on characteristic strings
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: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:VECT_Ransomware
Create hunting rule
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: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

File information

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

Comments