MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47921bae52d2d80acb35c1f4ca3e55f4608f76f774713d2578115e74537a897a. 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 4 File information Comments

SHA256 hash: 47921bae52d2d80acb35c1f4ca3e55f4608f76f774713d2578115e74537a897a
SHA3-384 hash: 1803cbb3ceb73e9b8f5fd008903a026d981fbbeec39709f56d5ff5edd20ec362d64ff52211fc32d1de285fb1f38cd2c1
SHA1 hash: 0b6d2fb73fff0ba587e1bff67e57ad615a106dc9
MD5 hash: c04479081b8da67dec9f6544a3203f29
humanhash: delta-north-kitten-network
File name:PO1276579.pdf.exe
Download: download sample
Signature AgentTesla
File size:616'960 bytes
First seen:2020-08-31 11:32:24 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:ymtdaJBtV6AmASlyxxJZPMVqCcvh6/xDiDC60hp7o6T+oNZqF4:ptQnmASAJZFC
Threatray 9'772 similar samples on MalwareBazaar
TLSH DCD4233227AC97AEEEF104F6041E3459C3A2E6438CAEC7D9BAD4327653B53D98335116
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.filrep.com
Sending IP: 66.23.225.124
From: Suresh Kulchandani<Suresh_Kulchandani@mail.bg>
Reply-To: Suresh Kulchandani<Suresh_Kulchandani@mail.bg>
Subject: New order for cables
Attachment: PO1276579.pdf.7z (contains "PO1276579.pdf.exe")

AgentTesla SMTP exfil server:
server126.web-hosting.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
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
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Double Extension
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 an obfuscated file name to hide its real file extension (double extension)
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: 280062 Sample: PO1276579.pdf.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 27 Found malware configuration 2->27 29 Multi AV Scanner detection for dropped file 2->29 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 9 other signatures 2->33 7 PO1276579.pdf.exe 4 2->7         started        process3 file4 19 C:\Users\user\AppData\...\lyQXvevRTmdB.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmpAAA1.tmp, XML 7->21 dropped 23 C:\Users\user\...\PO1276579.pdf.exe.log, ASCII 7->23 dropped 35 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->35 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->39 41 Injects a PE file into a foreign processes 7->41 11 PO1276579.pdf.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 server126.web-hosting.com 198.54.126.165, 49718, 587 NAMECHEAP-NETUS United States 11->25 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->43 45 Tries to steal Mail credentials (via file access) 11->45 47 Tries to harvest and steal ftp login credentials 11->47 49 2 other signatures 11->49 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-31 03:55:01 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer evasion spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
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_g2
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>
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 47921bae52d2d80acb35c1f4ca3e55f4608f76f774713d2578115e74537a897a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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