MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16ea5dc52c94b89cae902c89ca1e1d5572268b83014fe2d8175061f654295ba2. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 16ea5dc52c94b89cae902c89ca1e1d5572268b83014fe2d8175061f654295ba2
SHA3-384 hash: 3dbd8b143330fae9e76fd199cef82fd19bca6ccd7f4de9ab9e8fd11663a4b3d7a3c9b39bac4a3d750a869e3e341031d8
SHA1 hash: 24c41bc4ec9cb0b47185b37c5517c4f8b66202e5
MD5 hash: 89bf524b04637692aa00f9c3a9d4b21a
humanhash: wisconsin-april-cola-glucose
File name:SAMPLE 1-12.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:748'032 bytes
First seen:2020-08-03 14:01:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:/OsbwV5zEtft53TOsLiZULtj3ghKLvvCTEAJh:G2wkDFT7Cotj3cKzvCTE
Threatray 10'953 similar samples on MalwareBazaar
TLSH D6F4CE5C77A0891AF55A0FBEAD3651039D34E80BAD2BE38F29F1122D547A39C9C41F27
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: archantiquities.com
Sending IP: 37.49.224.50
From: sales23@archantiquities.com
Subject: RE: PLEASE QUOTE
Attachment: SAMPLE 1-12.zip (contains "SAMPLE 1-12.exe")

AgentTesla SMTP exfil server:
smtp.bnb-spa.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/37932/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408086
Signature
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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 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: 256294 Sample: SAMPLE 1-12.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 39 Sigma detected: Scheduled temp file as task from temp location 2->39 41 Yara detected AgentTesla 2->41 43 Yara detected AntiVM_3 2->43 45 6 other signatures 2->45 7 Mymp4.exe 3 2->7         started        10 SAMPLE 1-12.exe 7 2->10         started        13 Mymp4.exe 2 2->13         started        process3 file4 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->47 49 Machine Learning detection for dropped file 7->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->51 15 Mymp4.exe 2 7->15         started        18 Mymp4.exe 7->18         started        31 C:\Users\user\AppData\...\&startupname&.exe, PE32 10->31 dropped 33 C:\Users\user\AppData\Local\...\tmp64EE.tmp, XML 10->33 dropped 35 C:\...\&startupname&.exe:Zone.Identifier, ASCII 10->35 dropped 37 C:\Users\user\AppData\...\SAMPLE 1-12.exe.log, ASCII 10->37 dropped 53 Injects a PE file into a foreign processes 10->53 20 SAMPLE 1-12.exe 2 5 10->20         started        23 schtasks.exe 1 10->23         started        signatures5 process6 file7 55 Tries to steal Mail credentials (via file access) 15->55 57 Tries to harvest and steal ftp login credentials 15->57 59 Tries to harvest and steal browser information (history, passwords, etc) 15->59 27 C:\Users\user\AppData\Roaming\...\Mymp4.exe, PE32 20->27 dropped 29 C:\Users\user\...\Mymp4.exe:Zone.Identifier, ASCII 20->29 dropped 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->61 63 Installs a global keyboard hook 20->63 25 conhost.exe 23->25         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/16ea5dc52c94b89cae902c89ca1e1d5572268b83014fe2d8175061f654295ba2/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 09:03:21 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=c3vf3rjmss4jzluqfse4uhq5kvzcnc4dafh6fwaxkbq7mvbjlora._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'943 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/200803-py1s9ksvts/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of web browsers
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:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/16ea5dc52c94b89cae902c89ca1e1d5572268b83014fe2d8175061f654295ba2

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

zip 6043adc951a8a34c1c083f5be8dfe83a1597d7d98723c53c7f9746a3324e6260

AgentTesla

Executable exe 16ea5dc52c94b89cae902c89ca1e1d5572268b83014fe2d8175061f654295ba2

(this sample)

  
Dropped by
MD5 5a4576f21244e1fa2d2011fc9645d659
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/37932/
  
Dropped by
SHA256 6043adc951a8a34c1c083f5be8dfe83a1597d7d98723c53c7f9746a3324e6260

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