MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eb4900d71cfd218e3eb1eb920e96d4466796772830d964424ae42878ef9b2f8d. 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: eb4900d71cfd218e3eb1eb920e96d4466796772830d964424ae42878ef9b2f8d
SHA3-384 hash: 35e3a116b2137a3d64e08ff3aa72c3ed76c6c9c9ea37dd1ff90264334f67ae830191bc3fb6a8eff8cbb9ad8e35eb3e7d
SHA1 hash: 85dcefdefe1b612eb3d053721c3d475bc248787e
MD5 hash: df9d06efd44cacfd15067deb44fb7d91
humanhash: eight-yankee-idaho-cola
File name:Quotation.exe
Download: download sample
Signature AgentTesla
File size:703'488 bytes
First seen:2020-08-31 05:42:36 UTC
Last seen:2020-08-31 12:25:36 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:N8VQbod1YVCEjzSSVxVgG6mhif2w62IRPk4YNlZMm6OxU/ZIYxH:Na1CCgSSVxVyPfxU+NlZMFOxUKYx
Threatray 10'631 similar samples on MalwareBazaar
TLSH 86E422213A7D4BA3DFF64FF814AC70600368992AE655E38C4DD5B1F926EBBC08264753
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: [193.56.28.198]
Sending IP: 193.56.28.198
From: Anna <js@longyi.com.tw >
Reply-To: tandy.irnport@gmail.com
Subject: RE: Quotation Enquiry
Attachment: Quotation.zip (contains "Quotation.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Modifies the hosts file
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: 279797 Sample: Quotation.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Antivirus detection for dropped file 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 8 other signatures 2->38 7 Quotation.exe 7 2->7         started        process3 file4 20 C:\Users\user\AppData\...\zcCILgqNJi.exe, PE32 7->20 dropped 22 C:\Users\...\zcCILgqNJi.exe:Zone.Identifier, ASCII 7->22 dropped 24 C:\Users\user\AppData\Local\...\tmp312F.tmp, XML 7->24 dropped 26 C:\Users\user\AppData\...\Quotation.exe.log, ASCII 7->26 dropped 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->40 42 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->42 44 Injects a PE file into a foreign processes 7->44 11 Quotation.exe 2 7->11         started        16 schtasks.exe 1 7->16         started        signatures5 process6 dnsIp7 30 mail.privateemail.com 198.54.122.60, 49742, 587 NAMECHEAP-NETUS United States 11->30 28 C:\Windows\System32\drivers\etc\hosts, ASCII 11->28 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->46 48 Tries to steal Mail credentials (via file access) 11->48 50 Tries to harvest and steal ftp login credentials 11->50 52 3 other signatures 11->52 18 conhost.exe 16->18         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-30 23:26:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer 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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
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.

Malspam

AgentTesla

Executable exe eb4900d71cfd218e3eb1eb920e96d4466796772830d964424ae42878ef9b2f8d

(this sample)

  
Delivery method
Distributed via e-mail attachment

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