MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 131ca249c6d904b59e7afc79bdfc5d8159b2c92478fb332460bcba661f18f5bc. 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: 131ca249c6d904b59e7afc79bdfc5d8159b2c92478fb332460bcba661f18f5bc
SHA3-384 hash: d3d305d08b78a162c649d2664aa30763a3d0a2a1425201214da10755955c40d8cbc51b99f341a108a96a56e73b815125
SHA1 hash: fde2a3f913484829b676cf0cd9ae1751e6822f07
MD5 hash: c1b89ec0eda47ba0b75d92cbb3488606
humanhash: florida-yankee-montana-foxtrot
File name:PO 5N-09317.exe
Download: download sample
Signature AgentTesla
File size:891'384 bytes
First seen:2020-08-06 06:50:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:8kKjZASMyHqTzRAlgXI1JaH9tMQH3YP7r9r/+ppppppppppppppppppppppppppf:8XZASMZogXiaH9SQHI1qo
Threatray 10'949 similar samples on MalwareBazaar
TLSH B6150729BA405514D93D473198B6C9B162727D8B2E70CA1E29CA3F9F3FB33C7360615A
Reporter abuse_ch
Tags:AgentTesla exe Hostwinds


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: hwsrv-758873.hostwindsdns.com
Sending IP: 104.168.202.229
From: info@laynalk.com
Subject: Re: RE:# 5N-09317 Customer Trial Order (USA.)
Attachment: PO 5N-09317.rar (contains "PO 5N-09317.exe")

AgentTesla FTP exfil server:
syinternationaltrading.com:21

AgentTesla FTP exfil email address:
hosting@syinternationaltrading.com

Intelligence


File Origin
# of uploads :
1
# of downloads :
67
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-06 02:37:52 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Loads dropped DLL
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Executes dropped EXE
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.

Malspam

AgentTesla

Executable exe 131ca249c6d904b59e7afc79bdfc5d8159b2c92478fb332460bcba661f18f5bc

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments