MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 72d61ba8aa584dac7ed458f0ec2d41b31b9413fbec60f19377fd2873ee859b4f. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 72d61ba8aa584dac7ed458f0ec2d41b31b9413fbec60f19377fd2873ee859b4f
SHA3-384 hash: 5e4a9666ff751d4f8a80552c71c5e45b23c01f890b1ee44d9caec384b2c2ba3b16d75b1e5eb816477ea9c46dade91b2d
SHA1 hash: eb4d8b3f66d498ee4650c9ff170d9ebc5f1d3903
MD5 hash: bdca322d0cfa3a8b85d4b1a4eca3675c
humanhash: alpha-delaware-michigan-jupiter
File name:vaqwvo.jpg
Download: download sample
Signature AgentTesla
Create hunting rule
File size:675'328 bytes
First seen:2020-07-28 13:57:15 UTC
Last seen:2020-07-28 15:01:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:ykzwuh8BSfN7Bv16pDB8LQ8F8TW5wA/m8vyOUj25babwxgy:yYwutfN7BvQfW55vPbabE
Threatray 10'821 similar samples on MalwareBazaar
TLSH 98E45A6D3A816845E93E1B3681B95DD177B2F5833F01CB0F29D6171CAF026AB7B0609B
Reporter abuse_ch
Tags:AgentTesla COVID-19 exe HostGator


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: gateway32.websitewelcome.com
Sending IP: 192.185.145.122
From: Glaiza V. Convento <dc.fg106@htco-qatar.com>
Subject: New Inquiry for Covid-19 project/PO-Urgent Request For Quotation
Attachment: PO. Request for quotation.xls

AgentTesla payload URL:
https://a.uguu.se/vaqwvo.jpg

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/33745/
Detection(s):
SecuriteInfo.com.Heur.MSIL.Pretoria.1.26157.7300.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/400486
Signature
.NET source code contains very large array initializations
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the user root 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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 252593 Sample: vaqwvo.jpg Startdate: 29/07/2020 Architecture: WINDOWS Score: 84 35 Multi AV Scanner detection for submitted file 2->35 37 Yara detected AgentTesla 2->37 39 .NET source code contains very large array initializations 2->39 7 vaqwvo.exe 7 2->7         started        11 pcalua.exe 1 2->11         started        13 pcalua.exe 1 1 2->13         started        process3 file4 29 C:\Users\user\msog.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\...\vaqwvo.exe.log, ASCII 7->33 dropped 49 Drops PE files to the user root directory 7->49 15 msog.exe 2 7->15         started        17 cmd.exe 1 7->17         started        19 msog.exe 3 11->19         started        signatures5 process6 signatures7 22 AddInProcess32.exe 2 15->22         started        25 reg.exe 1 1 17->25         started        27 conhost.exe 17->27         started        41 Multi AV Scanner detection for dropped file 19->41 process8 signatures9 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 22->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 22->45 47 Creates an autostart registry key pointing to binary in C:\Windows 25->47
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/72d61ba8aa584dac7ed458f0ec2d41b31b9413fbec60f19377fd2873ee859b4f/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 13:59:05 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ollbxkfklbg2y7wuldyoylkbwmnzie735rqpde3x7uuhh3uftnhq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'811 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/200728-9qbxwyj9cs/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Loads dropped DLL
Reads user/profile data of local email clients
Executes dropped EXE
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/72d61ba8aa584dac7ed458f0ec2d41b31b9413fbec60f19377fd2873ee859b4f

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

Excel file xls 50164e4a88c5cef2e1adf6967dcc0098f654cfb74258871c3645a12e6160c55a

AgentTesla

Executable exe 72d61ba8aa584dac7ed458f0ec2d41b31b9413fbec60f19377fd2873ee859b4f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/420684/
  
Dropped by
MD5 6ea42813a2825060e6f6b6328ecb9d27
  
Dropped by
SHA256 50164e4a88c5cef2e1adf6967dcc0098f654cfb74258871c3645a12e6160c55a
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/33745/

Comments