MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b476c8bd4604f9eb16f852bd2a7770520789b8740195c32b30f68dcfc9e91e9. 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: 1b476c8bd4604f9eb16f852bd2a7770520789b8740195c32b30f68dcfc9e91e9
SHA3-384 hash: 4015f7744eb0e22e8b90141b84737d2649ec2c78f6923f352e735d20c4ff244fceca31589ae2d400c2b9cc530d8750ed
SHA1 hash: c1af3185a76b1300df8960a55aa2d6f9a5973888
MD5 hash: 280374bc93cdb76a0adb3c0a60098304
humanhash: thirteen-lemon-kitten-batman
File name:P&I_Circularpdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:712'192 bytes
First seen:2020-08-03 15:09:59 UTC
Last seen:2020-08-03 16:03:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:f0+ZDAPwh++erFcEzVH8QcJNlxsiYhPSTX09KXUFVYefP9:LZqwM+erOuQx7OSD09KXe
Threatray 10'871 similar samples on MalwareBazaar
TLSH B9E4CE6C7BA0462AF56A0FBE9C7250039D74E80B6927F38F39F2522C447A79C9C41F56
Reporter abuse_ch
Tags:AgentTesla exe MailChannels


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: camel.birch.relay.mailchannels.net
Sending IP: 23.83.209.29
From: Capt. Melanio P. Rivera <master.montblanchawk1@amosconnect.com>
Subject: Re: Japan P&I Club CIRCULAR
Attachment: PI_Circular.pdf.arj (contains "P&I_Circularpdf.exe")

AgentTesla SMTP exfil server:
secure231.servconfig.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38018/
Detection(s):
SecuriteInfo.com.Fareit-FXU280374BC93CD.8480.UNOFFICIAL
Create hunting rule

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/408206
Signature
Found malware configuration
Injects a PE file into a foreign processes
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: Capture Wi-Fi password
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 harvest and steal WLAN passwords
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
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 dnsIp2 2 Behavior Graph ID: 256345 Sample: P&I_Circularpdf.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 33 cdn.onenote.net 2->33 35 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->35 41 Found malware configuration 2->41 43 Sigma detected: Capture Wi-Fi password 2->43 45 Sigma detected: Scheduled temp file as task from temp location 2->45 47 8 other signatures 2->47 9 P&I_Circularpdf.exe 7 2->9         started        signatures3 process4 file5 25 C:\Users\user\AppData\...\&startupname&.exe, PE32 9->25 dropped 27 C:\Users\user\AppData\Local\...\tmp47FE.tmp, XML 9->27 dropped 29 C:\...\&startupname&.exe:Zone.Identifier, ASCII 9->29 dropped 31 C:\Users\user\...\P&I_Circularpdf.exe.log, ASCII 9->31 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->51 53 Injects a PE file into a foreign processes 9->53 13 P&I_Circularpdf.exe 3 9->13         started        17 schtasks.exe 1 9->17         started        signatures6 process7 dnsIp8 37 secure231.servconfig.com 198.46.81.61, 49743, 587 INMOTI-1US United States 13->37 39 192.168.2.1 unknown unknown 13->39 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->55 57 Tries to steal Mail credentials (via file access) 13->57 59 Tries to harvest and steal ftp login credentials 13->59 61 2 other signatures 13->61 19 netsh.exe 3 13->19         started        21 conhost.exe 17->21         started        signatures9 process10 process11 23 conhost.exe 19->23         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1b476c8bd4604f9eb16f852bd2a7770520789b8740195c32b30f68dcfc9e91e9/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 15:11:07 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dndwzc6umbhz5mlpquv5fj3xauqhrg4hiamvymvtb5unz7e6shuq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'861 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware persistence trojan family:agenttesla
Link:
https://tria.ge/reports/200803-lxjgty682j/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of SetThreadContext
Modifies service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1b476c8bd4604f9eb16f852bd2a7770520789b8740195c32b30f68dcfc9e91e9

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 150e5b44c79d7660223438fd5a75aa6027c859cc9be3b7dfeb55fd3e26ee8bea

AgentTesla

Executable exe 1b476c8bd4604f9eb16f852bd2a7770520789b8740195c32b30f68dcfc9e91e9

(this sample)

  
Dropped by
MD5 eb1741fb513e673229778e2ed5e2546c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 150e5b44c79d7660223438fd5a75aa6027c859cc9be3b7dfeb55fd3e26ee8bea
Cape
Cape
https://www.capesandbox.com/analysis/38018/

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