MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 545305810b041d0a1ea357652c1b98aa714b039c16af8d1d7ecdd8e513a59d8b. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash: 545305810b041d0a1ea357652c1b98aa714b039c16af8d1d7ecdd8e513a59d8b
SHA3-384 hash: 62529f44d171622818a31a281f5e0702a7ea7c59a9ab054d062172a7bfc3510f45a1adf50d268906952ac62d58a519be
SHA1 hash: 79a3c335a87baad25249867d4adf0e63a25f072f
MD5 hash: 70ff75d7a81b97a465bf79c46aacca5a
humanhash: nine-mike-mirror-cup
File name:POn° 08312020xlx.exe
Download: download sample
Signature AgentTesla
File size:773'120 bytes
First seen:2020-08-31 09:08:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:TCQM0YVr6Oeh3ZP0iSwCAPlst7LdQt7DVPetOW7c9D0zz/mQ+6rrrFrrrrrCRJRf:+QrYQOuZP0i96u2tOejzCsrrrFrrrrrC
Threatray 9'657 similar samples on MalwareBazaar
TLSH C1F401B3969C8395E9F85F71503F6C7203776FB26DA8E68DA888716217B33C18057E42
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: m97144.mail.qiye.163.com
Sending IP: 220.181.97.144
From: Ada <ada.feng@chuetsu-group.com>
Subject: Request quote
Attachment: POn° 08312020xlx.zip (contains "POn° 08312020xlx.exe")

AgentTesla SMTP exfil server:
polar.argondns.net:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Found malware configuration
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
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: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-31 02:47:29 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
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.

Malspam

AgentTesla

Executable exe 545305810b041d0a1ea357652c1b98aa714b039c16af8d1d7ecdd8e513a59d8b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments