MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4b2def9b20e63ab8c71ebc8dbae6d3bfd330aeb5121ae36fc2195c21317d59e. 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 23 File information Comments
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SHA256 hash: b4b2def9b20e63ab8c71ebc8dbae6d3bfd330aeb5121ae36fc2195c21317d59e
SHA3-384 hash: fab675f35d976a80c3047c6feae3892371d962e87e358f946e2e24793c9e0f8baf0ec733d1bf6718fbe702a3be1feeb0
SHA1 hash: 9cbc242920586ed0754b3affee986652bf849335
MD5 hash: 471c9df0a0f537ef6085ed3dd5fc4297
humanhash: golf-yellow-sink-sierra
File name:Transaction_Payment_Confirmation_4-13-26.pdf.js
Download: download sample
Signature AgentTesla
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File size:1'434'913 bytes
First seen:2026-04-13 13:05:18 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:uc3ksasZU/WDdIU0XNQDTzNSO3QGhYIrECM6rVcyPJK8:xl4m/0XNQLpQIJECWyt
TLSH T1B965025189C43FB8DFAC261D40FE251EA3F04EC95156A58AEB73BD4AFFA7604011B1AC
Magika javascript
Reporter abuse_ch
Tags:AgentTesla js


Avatar
abuse_ch
AgentTesla FTP exfil server:
ftp.hhautoinvestment.co.tz:21

Intelligence

File Origin
# of uploads :
1
# of downloads :
121
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Other.Malware-gen.69735952.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69dcea4a45787c53e539496b
Tags:
downloader vmdetect shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm encrypted masquerade obfuscated repaired
Link:
https://www.filescan.io/uploads/69dcea315ea31bc68a2616e6/reports/989cf195-29f3-42d7-92c7-c42ca12253ea/overview
Verdict:
Malicious
Labled as:
JS/TrojanDropper.Agent
Link:
https://www.hybrid-analysis.com/sample/b4b2def9b20e63ab8c71ebc8dbae6d3bfd330aeb5121ae36fc2195c21317d59e
Verdict:
Malicious
File Type:
js
First seen:
2026-04-13T05:48:00Z UTC
Last seen:
2026-04-15T07:21:00Z UTC
Hits:
~1000
Detections:
Trojan.JS.SAgent.sb Trojan-PSW.Win32.Stealer.sb Trojan-PSW.MSIL.Agensla.d HEUR:Trojan.Script.Generic HEUR:Trojan-Downloader.Script.Generic Trojan.Win32.InjectorNetT.s Trojan-Spy.Stealer.FTP.C&C Trojan-PSW.Win32.Disco.sb Trojan-PSW.MSIL.Agensla.sb Trojan-PSW.Agensla.TCP.C&C PDM:Trojan.Win32.Generic Trojan.PowerShell.Cobalt.sb
Link:
https://opentip.kaspersky.com/b4b2def9b20e63ab8c71ebc8dbae6d3bfd330aeb5121ae36fc2195c21317d59e/results?tab=lookup
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1897380
Signature
AI detected malicious Powershell script
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
Injects a PE file into a foreign processes
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Suspicious Parent Double Extension File Execution
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
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 Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1897380 Sample: Transaction_Payment_Confirm... Startdate: 13/04/2026 Architecture: WINDOWS Score: 100 31 ip-api.com 2->31 45 Suricata IDS alerts for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 9 other signatures 2->51 8 wscript.exe 3 2->8         started        signatures3 process4 file5 29 C:\Temp\ps_e7EwrJWzqCeh_1776090061247.ps1, ASCII 8->29 dropped 53 JScript performs obfuscated calls to suspicious functions 8->53 55 Suspicious powershell command line found 8->55 57 Wscript starts Powershell (via cmd or directly) 8->57 59 4 other signatures 8->59 12 powershell.exe 16 8->12         started        15 taskkill.exe 1 8->15         started        signatures6 process7 signatures8 61 Writes to foreign memory regions 12->61 63 Injects a PE file into a foreign processes 12->63 17 aspnet_compiler.exe 12->17         started        20 aspnet_compiler.exe 15 2 12->20         started        23 conhost.exe 12->23         started        27 4 other processes 12->27 25 conhost.exe 15->25         started        process9 dnsIp10 35 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 17->35 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->37 39 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 17->39 33 ip-api.com 208.95.112.1, 49753, 80 TUT-ASUS United States 20->33 41 Tries to steal Mail credentials (via file / registry access) 20->41 43 Tries to harvest and steal browser information (history, passwords, etc) 20->43 signatures11
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/b4b2def9b20e63ab8c71ebc8dbae6d3bfd330aeb5121ae36fc2195c21317d59e
Gathering data
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4b2def9b20e63ab8c71ebc8dbae6d3bfd330aeb5121ae36fc2195c21317d59e/
Verdict:
Malicious
Threat:
Family.AGENTTESLA
Link:
https://tip.neiki.dev/file/b4b2def9b20e63ab8c71ebc8dbae6d3bfd330aeb5121ae36fc2195c21317d59e
Threat name:
Script-JS.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-04-13 12:55:37 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 24 (33.33%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wszn56nsbzr2xddr5penxltnhp6tgcxlkeq24nx4egk4eeyx2wpa._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla defense_evasion discovery execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/260413-qbyx2adz4k/
Behaviour
Kills process with taskkill
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
ConfuserEx .NET packer
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Family: AgentTesla
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/b4b2def9b20e63ab8c71ebc8dbae6d3bfd330aeb5121ae36fc2195c21317d59e

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:AgentTeslaV2
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Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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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: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:telebot_framework
Create hunting rule
Author:vietdx.mb
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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
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

File information

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

Comments