MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f61ea2b82ddad99865b46c4a79b1f0e54c7ed82389fc3bbe5e346310b47f6355. 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


Intelligence File information Yara 3 Comments

SHA256 hash: f61ea2b82ddad99865b46c4a79b1f0e54c7ed82389fc3bbe5e346310b47f6355
SHA3-384 hash: 809e98e8e642ccc6a6ab2af8abe4b12526e7ca42c5cb5f9b2bc9d5901c6e08f3f4ea49c24a57c9dc5bb0ca9d2e70e7e0
SHA1 hash: 074f248b7f169d44b31dd38a348fdf08e5bad6a3
MD5 hash: 75149b45dbd194d67dd279d0b322bdf8
humanhash: fillet-colorado-echo-two
File name:TNT DOCUMENT.exe
Download: download sample
Signature AgentTesla
File size:519'168 bytes
First seen:2020-07-31 10:54:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:BHuZEaQgD1LtK+0HlrvAAlNKkjHNn2FOsg/SnXJM3DXQ5ZurIcHSpf:BHu6aQgBLtK++lrYAzFH12k4JMTg5h
TLSH 05B4D05CB0EA250BF41132BE9FF9829BCEA6F56F1297426B127525C7803C7086EC1E71
Reporter @abuse_ch
Tags:AgentTesla exe TNT


Twitter
@abuse_ch
Malspam distributing AgentTesla:

HELO: demolinesinternational.com
Sending IP: 95.211.253.201
From: Rajeesh Denis <dennis@demolinesinternational.com>
Subject: TNT Express Consignment Notification for 114844306
Attachment: TNT DOCUMENT.GZ (contains "TNT DOCUMENT.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
33
Origin country :
US US
Mail intelligence
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Gathering data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-07-31 10:56:08 UTC
AV detection:
20 of 31 (64.52%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
AgentTesla Payload
AgentTesla
Threat name:
Malicious File
Score:
0.87

Yara Signatures


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 f61ea2b82ddad99865b46c4a79b1f0e54c7ed82389fc3bbe5e346310b47f6355

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments