MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3dc5c8e233e9889ee972466520a8db5a57b8482a01803d3870e2ec6aa33fdfdc. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3dc5c8e233e9889ee972466520a8db5a57b8482a01803d3870e2ec6aa33fdfdc
SHA3-384 hash: 672c3a70aa2647da3d43beb30ca8f4ba0ca789fb9401a1d26c5c8efd0e9a073822516a0981b6d34284320ca89b7baa4a
SHA1 hash: 704bb606a720884a373dc14ab9bb68af60886d32
MD5 hash: 9403e170530a6ebadeecb506bf6f722f
humanhash: california-pluto-arkansas-minnesota
File name:TNT Import Clearance Consignment 9066721066.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:849'408 bytes
First seen:2020-08-04 11:16:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:41biRHcPgYxmOE+2Do4pPeRH89ffSJBOjsYSPpmplFNvWIw40XsH9tenDVjen:mIYxPeVZlIJBOiPp+lvvWIICbQV
Threatray 10'676 similar samples on MalwareBazaar
TLSH F605AFC1F1409E50D82A4E3B4D3349924B33AC6BEF06D607349CB6596BF72966A71F83
Reporter abuse_ch
Tags:AgentTesla exe TNT


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: h3.plesklogin.net
Sending IP: 208.67.23.101
From: TNT Express Import Service <hani.elsayed@esweco.com>
Subject: TNT Import Clearance – Consignment : #9066 721066 is now under clearance process
Attachment: TNT Import Clearance Consignment 9066721066.7z (contains "TNT Import Clearance Consignment 9066721066.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38563/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.21884.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/409109
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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)
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256790 Sample: TNT Import Clearance Consig... Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 60 Found malware configuration 2->60 62 Sigma detected: Scheduled temp file as task from temp location 2->62 64 Yara detected AgentTesla 2->64 66 8 other signatures 2->66 7 TNT Import Clearance Consignment 9066721066.exe 5 2->7         started        11 YYtJku.exe 3 2->11         started        13 YYtJku.exe 2->13         started        process3 file4 36 C:\Users\user\AppData\...QBzYEQACZgW.exe, PE32 7->36 dropped 38 C:\Users\...QBzYEQACZgW.exe:Zone.Identifier, ASCII 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmpDF75.tmp, XML 7->40 dropped 42 TNT Import Clearan... 9066721066.exe.log, ASCII 7->42 dropped 68 Injects a PE file into a foreign processes 7->68 15 TNT Import Clearance Consignment 9066721066.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        70 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->70 72 Machine Learning detection for dropped file 11->72 74 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->74 22 YYtJku.exe 2 11->22         started        24 schtasks.exe 1 11->24         started        26 schtasks.exe 13->26         started        signatures5 process6 dnsIp7 44 us2.smtp.mailhostbox.com 208.91.199.224, 49737, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->44 32 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 15->32 dropped 34 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 15->34 dropped 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->48 50 Moves itself to temp directory 15->50 52 Tries to steal Mail credentials (via file access) 15->52 28 conhost.exe 20->28         started        46 208.91.198.143, 49739, 587 PUBLIC-DOMAIN-REGISTRYUS United States 22->46 54 Tries to harvest and steal ftp login credentials 22->54 56 Tries to harvest and steal browser information (history, passwords, etc) 22->56 58 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->58 30 conhost.exe 24->30         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3dc5c8e233e9889ee972466520a8db5a57b8482a01803d3870e2ec6aa33fdfdc/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 11:18:07 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hxc4ryrt5gej52lsizssbkg3ljl3qsbkagad2odq4lwgviz737oa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'666 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200804-e5zjq66a72/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3dc5c8e233e9889ee972466520a8db5a57b8482a01803d3870e2ec6aa33fdfdc

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
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

7z bf83fed9a8da6c4feafb219898f443fd3fa74886decc2aaf22403242deaf0da3

AgentTesla

Executable exe 3dc5c8e233e9889ee972466520a8db5a57b8482a01803d3870e2ec6aa33fdfdc

(this sample)

  
Dropped by
MD5 9629c03dfb3b1ea9281c8823e80a24d3
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38563/
  
Dropped by
SHA256 bf83fed9a8da6c4feafb219898f443fd3fa74886decc2aaf22403242deaf0da3

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