MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f0b3d714aa71901073c4fa858d345e59396482f33e477b57d04089cb842f20c9. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: f0b3d714aa71901073c4fa858d345e59396482f33e477b57d04089cb842f20c9
SHA3-384 hash: f1cbb7b5a2481fc0445f50cdb270163bccbd1e11d5d1250a06662df13b1898377b1a52937d1d4c8b7db0ebd27f4c33d3
SHA1 hash: 06ec4b1a34ecdf5d483c2495c7357d15353532bd
MD5 hash: ace8443b6e82033dc52a15c5759e72b5
humanhash: tennessee-lamp-lima-mockingbird
File name:탑엔지니어링_PO73284383_2020-08-17_dwg.exe
Download: download sample
Signature AgentTesla
File size:735'744 bytes
First seen:2020-08-17 06:25:09 UTC
Last seen:2020-08-17 07:00:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Ex5Lhk+qtE4qBWF5lc/N+8BBdALaa2nkXtgnBuatoKtpaQKNeamTErLkLgsBDlI8:gLLkr5CMaBdALoWanpuK3NK53rcgsrjr
Threatray 9'371 similar samples on MalwareBazaar
TLSH FDF41213B5A4C901C1391E328599178003F8ADDAB986FB2DBC88337DDAB5BE94715FC6
Reporter abuse_ch
Tags:AgentTesla exe geo KOR


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail-smail-vm47.hanmail.net
Sending IP: 203.133.180.235
From: 김장민 <dewpack@dewpack.com>
Subject: 듀팩장원기계 입니다 - PO73284383
Attachment: 탑엔지니어링_PO73284383_2020-08-17_dwg.z (contains "탑엔지니어링_PO73284383_2020-08-17_dwg.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 268578 Sample: #Ud0d1#Uc5d4#Uc9c0#Ub2c8#Uc... Startdate: 17/08/2020 Architecture: WINDOWS Score: 100 29 Sigma detected: Scheduled temp file as task from temp location 2->29 31 Yara detected AgentTesla 2->31 33 Yara detected AntiVM_3 2->33 35 6 other signatures 2->35 7 #Ud0d1#Uc5d4#Uc9c0#Ub2c8#Uc5b4#Ub9c1_PO73284383_2020-08-17_dwg.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\haYxGIxOon.exe, PE32 7->19 dropped 21 C:\Users\...\haYxGIxOon.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp68B2.tmp, XML 7->23 dropped 25 #Ud0d1#Uc5d4#Uc9c0...0-08-17_dwg.exe.log, ASCII 7->25 dropped 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 #Ud0d1#Uc5d4#Uc9c0#Ub2c8#Uc5b4#Ub9c1_PO73284383_2020-08-17_dwg.exe 15 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 api.telegram.org 149.154.167.220, 443, 49698 TELEGRAMRU United Kingdom 11->27 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 Tries to harvest and steal browser information (history, passwords, etc) 11->49 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2020-08-17 01:31:26 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Program crash
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 f0b3d714aa71901073c4fa858d345e59396482f33e477b57d04089cb842f20c9

(this sample)

  
Delivery method
Distributed via e-mail attachment

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