MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a16287ca396038136cc63470d0e86edf10f8f2d4946fdb84fb03c6bd978735b6. 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



AgentTesla


Vendor detections: 13


Intelligence 13 IOCs YARA File information Comments

SHA256 hash: a16287ca396038136cc63470d0e86edf10f8f2d4946fdb84fb03c6bd978735b6
SHA3-384 hash: 9c4873e6a342726fad883a96da4b332bfd568b1ca445afdddb27d5a3a63195c7b72359fffd7ca435838b7ee712f67ea3
SHA1 hash: a33701a2db06030b7384d7ed21fbf420cf191fa2
MD5 hash: 52283334b1ad69f0a390de4c107dacc3
humanhash: yankee-island-jig-bacon
File name:doc000621026006.JS
Download: download sample
Signature AgentTesla
File size:3'779'760 bytes
First seen:2026-06-22 15:26:42 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 98304:MjFYF4r7z37eD6a15Dy2Vu9SUJhbXqQavfUiK96S+E4rSRbLeulZSl3ziFJ1HiA:t63my50duE8CA
Threatray 203 similar samples on MalwareBazaar
TLSH T1D8062A409B209175E66DCB3DE037DFB0494E202355ABCF4E3429D318794AF8B17AA9E7
Magika javascript
Reporter abuse_ch
Tags:AgentTesla js


Avatar
abuse_ch
AgentTesla FTP exfil server:
ftp.avion.com.sg:21

Intelligence


File Origin
# of uploads :
1
# of downloads :
147
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
96.5%
Tags:
negasteal virus lien blic
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug dropper evasive obfuscated obfuscated packed repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-06-21T08:08:00Z UTC
Last seen:
2026-06-24T12:57:00Z UTC
Hits:
~1000
Detections:
HEUR:Trojan-Downloader.Script.Generic Trojan-Dropper.JS.SDrop.sb HEUR:Trojan-Dropper.Script.Generic HEUR:Trojan.Script.Lubfus.gen HEUR:Trojan.Script.Generic
Result
Threat name:
AgentTesla, DonutLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Benign windows process drops PE files
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Drops PE files to the document folder of the user
Drops PE files with a suspicious file extension
Found API chain indicative of debugger detection
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AgentTesla
Yara detected DonutLoader
Yara detected Lua decrypt and execute
Behaviour
Behavior Graph:
Gathering data
Threat name:
Script-JS.Spyware.Negasteal
Status:
Malicious
First seen:
2026-06-21 15:56:37 UTC
File Type:
Text (JavaScript)
AV detection:
10 of 24 (41.67%)
Threat level:
  2/5
Result
Malware family:
donutloader
Score:
  10/10
Tags:
family:agenttesla family:donutloader collection execution keylogger loader spyware stealer trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Detects DonutLoader
Family: AgentTesla
Family: DonutLoader
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments