MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9649094a155e904fc28617746d9656d499d04da6944e5201fa322bd1cbe1a897. 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: 9649094a155e904fc28617746d9656d499d04da6944e5201fa322bd1cbe1a897
SHA3-384 hash: 98580b9cd7ce35e175edc3a5fb0d4911125dda5b4c3012132a14a0f2531cc7c280ebb5282ad37058ace3b368984325e8
SHA1 hash: 2f59543388007374ac44e70e7299bb7af5390be7
MD5 hash: 66fe237302592c05ea3de09355f839ae
humanhash: arizona-hot-comet-coffee
File name:PDF_47568.exe
Download: download sample
Signature AgentTesla
File size:595'968 bytes
First seen:2020-07-29 05:38:44 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:O7Ajy+nFEqFbLqg9KF5airaIjcxIfXrW87gD4kSPV0Hq:VtFE6ChoirDIxAhEDyP
Threatray 10'456 similar samples on MalwareBazaar
TLSH 5AC4C059B690F936C2FE4174B2DC158CCFFC8196922BE346B8A497EB15C23D3E4096B1
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

From: Sophia MARQUETON<info@nevamarine.com>
Subject: Remittance payment
Attachment: PDF_47568.iso (contains "PDF_47568.exe")

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

Intelligence


File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 252856 Sample: PDF_47568.exe Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 28 Multi AV Scanner detection for dropped file 2->28 30 Sigma detected: Scheduled temp file as task from temp location 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 5 other signatures 2->34 7 PDF_47568.exe 7 2->7         started        process3 file4 22 C:\Users\user\AppData\...\&startupname&.exe, PE32 7->22 dropped 24 C:\Users\user\AppData\Local\...\tmp6321.tmp, XML 7->24 dropped 26 C:\Users\user\AppData\...\PDF_47568.exe.log, ASCII 7->26 dropped 36 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->36 38 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->38 40 Injects a PE file into a foreign processes 7->40 42 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->42 11 PDF_47568.exe 4 7->11         started        14 schtasks.exe 1 7->14         started        16 PDF_47568.exe 7->16         started        18 PDF_47568.exe 7->18         started        signatures5 process6 signatures7 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->44 46 Tries to steal Mail credentials (via file access) 11->46 48 Tries to harvest and steal ftp login credentials 11->48 50 Tries to harvest and steal browser information (history, passwords, etc) 11->50 20 conhost.exe 14->20         started        process8
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-07-29 05:40:09 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
spyware
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of SetThreadContext
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
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
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 9649094a155e904fc28617746d9656d499d04da6944e5201fa322bd1cbe1a897

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments