MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4540704d5523550479941871d2af08967a64523fe1110f90a37bbd85e935f49. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: f4540704d5523550479941871d2af08967a64523fe1110f90a37bbd85e935f49
SHA3-384 hash: 1ae4102a80fac32ba3aa660e2db09a6309f2edd4fbc052de4065359f2b8034c2fb66e92cd2d4f69b3ea61617678e6f93
SHA1 hash: b9a45770838273f38642b89835234fe57f57dbdd
MD5 hash: c4d4c48908615c62640a4676e6282f80
humanhash: failed-green-october-maryland
File name:409080000900000.exe
Download: download sample
Signature AgentTesla
File size:475'648 bytes
First seen:2020-08-04 13:48:01 UTC
Last seen:2020-08-04 15:22:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:3lF6c35JBNZjZeNnEypDbbqC94HnQXIMgnvOPkcYnajLX7DnPF5uxK+vWB:3lwc35J3ZwDDbDWnopv3nPFEzuB
Threatray 11'122 similar samples on MalwareBazaar
TLSH A7A4BE01D30C8A6AD4270E7BCCB7D935023379665B56E74F181D3AAE0AA33D741ABE47
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: somosindustria.com
Sending IP: 45.137.22.52
From: sales <sales@somosindustria.com>
Subject: Factura/Por favor reconfirme sus datos bancarios
Attachment: 409080000900000.xz (contains "409080000900000.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Machine Learning detection for sample
Maps a DLL or memory area into another process
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: RegAsm connects to smtp port
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-04 13:49:03 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information


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

9c2a8724e4a65da713c08aa4a6e16288

AgentTesla

Executable exe f4540704d5523550479941871d2af08967a64523fe1110f90a37bbd85e935f49

(this sample)

  
Dropped by
MD5 9c2a8724e4a65da713c08aa4a6e16288
  
Delivery method
Distributed via e-mail attachment

Comments