MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fdc13d1d139b41849ee8afbb84fbc82d30fcbc8b84a828b6bf78db44b6d3747. 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: 3fdc13d1d139b41849ee8afbb84fbc82d30fcbc8b84a828b6bf78db44b6d3747
SHA3-384 hash: 6f81f52a740262649633f111b2895302bcdc659954e69f1f86eaa77e898b57442309528f5a7eeadbb1d2590f898d83ab
SHA1 hash: e8f17a9364036afb9fb6f0d8a5ffe4bd1e6a10ff
MD5 hash: c9e161fbfc86d5ac8f30ba0c87aa2142
humanhash: ink-carbon-ceiling-whiskey
File name:scan_00528PO1.pdf.exe
Download: download sample
Signature AgentTesla
File size:648'192 bytes
First seen:2020-07-16 19:21:22 UTC
Last seen:2020-07-16 20:13:11 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:Vbz2k4zUR8tk0hNj6cczCCt9qZzOL/9uCP7r9r/+pppppppppppppppppppppppH:VP8t9jBcDtYzOLFf1q
Threatray 10'605 similar samples on MalwareBazaar
TLSH ECD46AC8E94455A0DD5DAF746A36CD3042237DADF8F4A41C2BDE7E2B3BBB292E015052
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: bizsmtp.net4india.com
Sending IP: 113.30.139.36
From: "Számlázási cím" <ritesh@vinirforge.com>
Subject: Chinoin ZRT Purchase Order #E002732667
Attachment: scan_00528PO1.pdf.z (contains "scan_00528PO1.pdf.exe")

AgentTesla SMTP exfil server:
mail.zasapparels.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Using the Windows Management Instrumentation requests
Creating a window
Enabling autorun with Startup directory
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
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)
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Double Extension
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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-07-16 19:23:04 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
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 web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
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
Rule name:win_cannon_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 3fdc13d1d139b41849ee8afbb84fbc82d30fcbc8b84a828b6bf78db44b6d3747

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments