MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8cb40cc9efa7f66d24c1af3ef4779f7a177ac50c1131f2e840633c1ad8f45b99. 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: 12
| SHA256 hash: | 8cb40cc9efa7f66d24c1af3ef4779f7a177ac50c1131f2e840633c1ad8f45b99 |
|---|---|
| SHA3-384 hash: | 59ee24d2c654ca4d4c80e2f1b615d41ed15f9bea367d09732ebfc6e290c0320307981d46c44ea16d481a9b0a1ac0f7da |
| SHA1 hash: | 31f21efdee128924be02454fb6654e554e7c9157 |
| MD5 hash: | 03f632e8119c2f02213b368e2142d225 |
| humanhash: | cup-batman-north-venus |
| File name: | 2025-09-18-0833.JS |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 2'418'283 bytes |
| First seen: | 2025-09-18 14:20:25 UTC |
| Last seen: | Never |
| File type: |  js |
| MIME type: | text/plain |
| ssdeep | 24576:LsjYXOljBjyLlgZcwohvvq9ZqbQzBjKx90b3MmY49cg918H:rdhvvq9ZqbQzBjyI3Mr49cgI |
| Threatray | 3'913 similar samples on MalwareBazaar |
| TLSH | T18EB5D840FE80AA961B174F3F7717B0E0D6911EAB7D46C44BD006ADB1B6E7252EE60732 |
| Magika | javascript |
| Reporter |  abuse_ch |
| Tags: | AgentTesla js |
Intelligence
File Origin
# of uploads :
1
# of downloads :
126
Origin country :
SEVendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Tags:
obfuscate xtreme spawn lien
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm base64 obfuscated overlay powershell
Verdict:
Suspicious
Labled as:
JS/Agent.DEK
Verdict:
Malicious
File Type:
js
First seen:
2025-09-18T04:32:00Z UTC
Last seen:
2025-09-18T04:32:00Z UTC
Hits:
~1000
Result
Threat name:
AgentTesla, PureLog Stealer
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Signature
Bypasses PowerShell execution policy
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
JavaScript source code contains functionality to create an Office document
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
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)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Malicious Base64 Encoded PowerShell Keywords in Command Lines
Sigma detected: MSBuild connects to smtp port
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Gathering data
Threat name:
Script-JS.Spyware.Negasteal
Status:
Suspicious
First seen:
2025-09-18 08:32:31 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 24 (33.33%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
agenttesla
Similar samples:
+ 3'903 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla discovery execution keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
AgentTesla
Agenttesla family
Malware Config
Dropper Extraction:
https://arkanmep.com/q.jpg
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | SUSP_obfuscated_JS_obfuscatorio |
|---|---|
| Author: | @imp0rtp3 |
| Description: | Detect JS obfuscation done by the js obfuscator (often malicious) |
| Reference: | https://obfuscator.io |
| 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) |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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