MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0f9c3e7962330f174a7529d7edd7981c9ffb4f0f1d6eee585a7f3467b5c06a49. 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: 0f9c3e7962330f174a7529d7edd7981c9ffb4f0f1d6eee585a7f3467b5c06a49
SHA3-384 hash: dc36a5bf0a14d0764057a2310da515d38ee97fcf65603aae9459a0dfc73b5e97d93dc56d801afb4fd5811ab1a85c03ce
SHA1 hash: ea7c1a80fedf3c73a766a6949aa50d7f61278054
MD5 hash: 723a53b088369d2aea0892543f0daec8
humanhash: nitrogen-magazine-triple-cardinal
File name:Appointment acceptance receipt confirmation , 118130_pdf.exe
Download: download sample
Signature AgentTesla
File size:659'456 bytes
First seen:2020-08-20 06:27:32 UTC
Last seen:Never
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:o5ZrV9Khz+QI9mVEBzmAUmMyUw/383J3pFEixDEJjiD7/V/NbG15:SVYp+9jo9C//383jFEixI9iDzV/NbG1
Threatray 10'606 similar samples on MalwareBazaar
TLSH A2E402523528A7C6F86A4BF08531A4529FBA3F315D12E2097DF27BDE2C36701D9217A3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: iux0.306.metalvxini.ml
Sending IP: 157.245.220.42
From: DA-Desk Mail System <fcc@da-desk.com>
Subject: Appointment acceptance receipt confirmation , 118130
Attachment: Appointment acceptance receipt confirmation , 118130_pdf.rar (contains "Appointment acceptance receipt confirmation , 118130_pdf.exe")

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

Intelligence


File Origin
# of uploads :
1
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 272902 Sample: Appointment acceptance rece... Startdate: 21/08/2020 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Yara detected AgentTesla 2->39 41 Yara detected AntiVM_3 2->41 43 5 other signatures 2->43 6 WNRUXJ.exe 3 2->6         started        9 Appointment acceptance receipt confirmation , 118130_pdf.exe 3 2->9         started        12 WNRUXJ.exe 2 2->12         started        process3 file4 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->45 47 Machine Learning detection for dropped file 6->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->49 14 WNRUXJ.exe 2 6->14         started        27 Appointment accept... 118130_pdf.exe.log, ASCII 9->27 dropped 51 Injects a PE file into a foreign processes 9->51 18 Appointment acceptance receipt confirmation , 118130_pdf.exe 2 5 9->18         started        21 WNRUXJ.exe 12->21         started        signatures5 process6 dnsIp7 29 smtp.yandex.com 14->29 53 Tries to harvest and steal ftp login credentials 14->53 55 Tries to harvest and steal browser information (history, passwords, etc) 14->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->57 31 smtp.yandex.ru 77.88.21.158, 49729, 49742, 587 YANDEXRU Russian Federation 18->31 33 192.168.2.1 unknown unknown 18->33 35 smtp.yandex.com 18->35 23 C:\Users\user\AppData\Roaming\...\WNRUXJ.exe, PE32 18->23 dropped 25 C:\Users\user\...\WNRUXJ.exe:Zone.Identifier, ASCII 18->25 dropped 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->59 61 Moves itself to temp directory 18->61 63 Tries to steal Mail credentials (via file access) 18->63 65 Installs a global keyboard hook 18->65 file8 signatures9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-20 04:53:33 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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.

b88e0cd57195145af78e9799e28d2a4d

AgentTesla

Executable exe 0f9c3e7962330f174a7529d7edd7981c9ffb4f0f1d6eee585a7f3467b5c06a49

(this sample)

  
Dropped by
MD5 b88e0cd57195145af78e9799e28d2a4d
  
Delivery method
Distributed via e-mail attachment

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