MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2225f6718bd3b259a05e50083aedf852954c1a383f45ff2e51e4122d197b804d. 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: 2225f6718bd3b259a05e50083aedf852954c1a383f45ff2e51e4122d197b804d
SHA3-384 hash: 3936396804efebbcb81c26b56ba1ae3ba61bd45e4295d6d23e8336e27ec03e5c5a1adfe686eb681df285b10389d33d5e
SHA1 hash: fb94b71160ebc47efd13301d54ab2d76586b7513
MD5 hash: 58d1216f9f431503d3da13815140dad1
humanhash: diet-tennessee-friend-charlie
File name:RFQ DOC 43525666_PDF.exe
Download: download sample
Signature AgentTesla
File size:953'344 bytes
First seen:2020-08-31 11:28:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:FmcJma7tn6eacF2tdX+bVRAms8T04Ku35QG17M:Is6e9Id+bVRyW04KAJ17M
Threatray 9'516 similar samples on MalwareBazaar
TLSH C215E013031D972ED81873B9355010DCE6F16F42EF38E1E8EE5771EAA82A64DA1DD6C2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ph.phonicphaseapi.live
Sending IP: 45.95.171.224
From: Ahmed.khalid <info@bisselldirect.co.uk>
Reply-To: Ahmed.khalid <info@phonicphaseapi.live>
Subject: URGENT REQUEST FOR BEST QUOTATION
Attachment: RFQ DOC 43525666_PDF.r02 (contains "RFQ DOC 43525666_PDF.exe")

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

Intelligence


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

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
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
Machine Learning detection for dropped file
Machine Learning detection for sample
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
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 280057 Sample: RFQ DOC 43525666_PDF.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Multi AV Scanner detection for dropped file 2->35 37 Sigma detected: Scheduled temp file as task from temp location 2->37 39 9 other signatures 2->39 7 RFQ DOC 43525666_PDF.exe 7 2->7         started        process3 file4 21 C:\Users\user\AppData\Roaming\DasIQv.exe, PE32 7->21 dropped 23 C:\Users\user\...\DasIQv.exe:Zone.Identifier, ASCII 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp7C30.tmp, XML 7->25 dropped 27 C:\Users\...\RFQ DOC 43525666_PDF.exe.log, ASCII 7->27 dropped 41 Writes to foreign memory regions 7->41 43 Allocates memory in foreign processes 7->43 45 Injects a PE file into a foreign processes 7->45 11 RegSvcs.exe 4 7->11         started        15 RegSvcs.exe 7->15         started        17 schtasks.exe 1 7->17         started        signatures5 process6 dnsIp7 29 smtp.yandex.com.tr 11->29 31 smtp.yandex.ru 77.88.21.158, 49718, 587 YANDEXRU Russian Federation 11->31 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 Tries to harvest and steal ftp login credentials 11->51 57 2 other signatures 11->57 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->53 55 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->55 19 conhost.exe 17->19         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2020-08-31 03:55:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla evasion
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_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 2225f6718bd3b259a05e50083aedf852954c1a383f45ff2e51e4122d197b804d

(this sample)

  
Delivery method
Distributed via e-mail attachment

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