MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b48b2ea769e8c20756804cb3ddff8db12e232c1cda07356b2af27b9d3bfc7dc0. 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 21 File information Comments

SHA256 hash:	b48b2ea769e8c20756804cb3ddff8db12e232c1cda07356b2af27b9d3bfc7dc0
SHA3-384 hash:	b4319e07d48b032652351b9edbc96aba02bcbf9a3353dca362c773375150244b90aa20c6688ac209e1b097eaced8a172
SHA1 hash:	fe129816cfd6f501e7a43a5e6b66a52a360fbf34
MD5 hash:	a60f36ce885436d478d1d71963991686
humanhash:	west-earth-sad-fillet
File name:	startonlinejs.js
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	86'683 bytes
First seen:	2026-10-21 12:43:36 UTC
Last seen:	Never
File type:	js
MIME type:	application/javascript
ssdeep	768:l6ul+k4HH2Hsg2L9A/c4THC8F9nSavDgKmjzbUG6WXWprJa1AEfVo7LcIzukbKp2:l6vn2MkfD8b2EKvhb3Zz/
TLSH	T1B28362420A8679849337577B7B1A68E1FB770B6700850507B87C7454AFF2E1AEEE4CB1
Magika	javascript
Reporter	abuse_ch
Tags:	AgentTesla js

abuse_ch

AgentTesla FTP exfil server:
ftp.darlenemarino.cyou:21

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.JS.Obfus-2303.UNOFFICIAL

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad8b3b45a22ac805bd8bb44

Tags:

infosteal autorun cryxos rapid

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

encrypted evasive obfuscated persistence powershell repaired

Link:

https://www.filescan.io/uploads/6ad8b3b1a6bc1c16221e9cdb/reports/88cd2345-8ac3-421c-98aa-33f7b9d727ba/overview

Verdict:

Malicious

Labled as:

Trojan.Cryxos.JS

Link:

https://www.hybrid-analysis.com/sample/b48b2ea769e8c20756804cb3ddff8db12e232c1cda07356b2af27b9d3bfc7dc0

Verdict:

Malicious

File Type:

First seen:

2026-10-21T10:35:00Z UTC

Last seen:

2026-10-22T19:52:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/b48b2ea769e8c20756804cb3ddff8db12e232c1cda07356b2af27b9d3bfc7dc0/results?tab=lookup

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1989971

Signature

.NET source code contains method to dynamically call methods (often used by packers)

Antivirus detection for URL or domain

Bypasses PowerShell execution policy

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)

Found malware configuration

Injects a PE file into a foreign processes

JavaScript source code contains functionality to generate code involving a shell, file or stream

JavaScript source code contains functionality to generate code involving HTTP requests or file downloads

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: Script Initiated Connection to Non-Local Network

Sigma detected: Suspicious PowerShell Parameter Substring

Sigma detected: WScript or CScript Dropper

Suricata IDS alerts for network traffic

Suspicious execution chain found

System process connects to network (likely due to code injection or exploit)

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)

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Writes to foreign memory regions

WScript reads language and country specific registry keys (likely country aware script)

Wscript starts Powershell (via cmd or directly)

Yara detected AgentTesla

Yara detected Generic JS Downloader

Yara detected Powershell decode and execute

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/b48b2ea769e8c20756804cb3ddff8db12e232c1cda07356b2af27b9d3bfc7dc0

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b48b2ea769e8c20756804cb3ddff8db12e232c1cda07356b2af27b9d3bfc7dc0/

Threat name:

Script-JS.Trojan.Cryxos

Status:

Malicious

First seen:

2026-10-21 12:44:32 UTC

File Type:

Text (JavaScript)

AV detection:

9 of 24 (37.50%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=wsfs5j3j5dbaovuajsz5374nwexcgla43idtk2zk6j5z2o74pxaa._file

Verdict:

malicious

Label(s):

AgentTesla

Link:

https://reports.threatray.com/92c17b38-445e-4273-96aa-e9300e77f9d7

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla collection discovery execution keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/261021-pyp3zacw3x/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

outlook_office_path

Command and Scripting Interpreter: JavaScript

Command and Scripting Interpreter: PowerShell

Enumerates physical storage devices

Reads the TCP/IP host and domain name from the registry

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Checks computer location settings

Badlisted process makes network request

Family: AgentTesla

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b48b2ea769e8/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b48b2ea769e8c20756804cb3ddff8db12e232c1cda07356b2af27b9d3bfc7dc0

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:	Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	INDICATOR_EXE_Packed_GEN01 Create hunting rule
Author:	ditekSHen
Description:	Detect packed .NET executables. Mostly AgentTeslaV4.

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many file transfer clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Rule name:	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing Windows vault credential objects. Observed in infostealers

Rule name:	malware_Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	MALWARE_Win_AgentTeslaV2 Create hunting rule
Author:	ditekSHen
Description:	AgenetTesla Type 2 Keylogger payload

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_obfuscated_JS_obfuscatorio Create hunting rule
Author:	@imp0rtp3
Description:	Detect JS obfuscation done by the js obfuscator (often malicious)
Reference:	https://obfuscator.io

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_Generic_Threat_779cf969 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_AgentTesla_ebf431a8 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

Rule name:	WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects XWorm (pe, etat extrait)

Rule name:	WIN_Sample_Unique_69354b41 Create hunting rule
Author:	Marjoriefort
Description:	Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:	69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information

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

Web download

AgentTesla

js b48b2ea769e8c20756804cb3ddff8db12e232c1cda07356b2af27b9d3bfc7dc0

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3953437/

Delivery method

Distributed via web download

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample