MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 784c62915711702ebe7cfa5b9c7e3683d4d926d6b0636d3402e954fde1ee1f21. 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: 784c62915711702ebe7cfa5b9c7e3683d4d926d6b0636d3402e954fde1ee1f21
SHA3-384 hash: 8010efa58e8cc3da409cd4a182b0f345e503948956b899150d21bb3267a6c1c5e155b3daed5a461b141b3aad9a2aa82f
SHA1 hash: c8d36e9a6338e931c2ad047f91485e2eaeb9a911
MD5 hash: 972854295049b24039db4c7bc00cd72f
humanhash: three-don-lemon-kitten
File name:Document Copy.exe
Download: download sample
Signature AgentTesla
File size:693'248 bytes
First seen:2020-09-15 14:01:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:gCDqF9XLi57sA+W6uTek5BsJpBIXQOgIr4gRVgS4tX92LhUU6e:S+siPZmpa9HvWXwLh5
Threatray 9'235 similar samples on MalwareBazaar
TLSH 1CE4D05976BE9F6AC6BD93F84E15645043F1EE2E551DE3888CC2B1FB12B2F244A00E17
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
99
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
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Stealing user critical data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
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
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)
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 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: 285754 Sample: Document Copy.exe Startdate: 15/09/2020 Architecture: WINDOWS Score: 100 31 Multi AV Scanner detection for submitted file 2->31 33 Yara detected AgentTesla 2->33 35 Yara detected AntiVM_3 2->35 37 7 other signatures 2->37 6 newer.exe 3 2->6         started        9 Document Copy.exe 3 2->9         started        12 newer.exe 2 2->12         started        process3 file4 39 Multi AV Scanner detection for dropped file 6->39 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->41 43 Machine Learning detection for dropped file 6->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->45 14 newer.exe 14 2 6->14         started        25 C:\Users\user\...\Document Copy.exe.log, ASCII 9->25 dropped 47 Injects a PE file into a foreign processes 9->47 18 Document Copy.exe 17 5 9->18         started        signatures5 process6 dnsIp7 49 Tries to harvest and steal ftp login credentials 14->49 51 Tries to harvest and steal browser information (history, passwords, etc) 14->51 53 Installs a global keyboard hook 14->53 27 api.telegram.org 149.154.167.220, 443, 49741, 49746 TELEGRAMRU United Kingdom 18->27 29 192.168.2.1 unknown unknown 18->29 21 C:\Users\user\AppData\Roaming\...\newer.exe, PE32 18->21 dropped 23 C:\Users\user\...\newer.exe:Zone.Identifier, ASCII 18->23 dropped 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->55 57 Moves itself to temp directory 18->57 59 Tries to steal Mail credentials (via file access) 18->59 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->61 file8 signatures9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-09-15 05:18:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
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.

  
Delivery method
Other

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