MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 80df8a8e23f8050391db8cb12edaeb701ade2022116f097a677761f22e37db73. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments

SHA256 hash: 80df8a8e23f8050391db8cb12edaeb701ade2022116f097a677761f22e37db73
SHA3-384 hash: f0e12f5c4c025d4461cba6786d23c76fea92a8b9776c8d4dfc91ca9d679f11a17688637ea733480628ef2ec95d6a7715
SHA1 hash: 28d38a0d39217fc8ea3376ad4e57816cefb8d27e
MD5 hash: 56d7613a040efd3fdcb0066c6b2ae8af
humanhash: massachusetts-blue-snake-delta
File name:Enquiry...exe
Download: download sample
Signature AgentTesla
File size:449'024 bytes
First seen:2020-08-04 16:31:33 UTC
Last seen:2020-08-04 17:57:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:p/aNmEOcqz8JXR1FFKJ3Q1MnhoBGlZ2f7M/:0NmJ21FF4Q16oBGZCM/
Threatray 10'764 similar samples on MalwareBazaar
TLSH E9A4012D40959E1AF4170B3F4D705103EE77D91F602AD29B8FB5258981BEA1C3EA4FB2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: marcels-maschinen.ch
Sending IP: 156.96.119.28
From: info@marcels-maschinen.ch
Reply-To: info@marcels-maschinen.ch
Subject: Enquiry...
Attachment: Enquiry..zip (contains "Enquiry...exe")

AgentTesla SMTP exfil server:
mail.cosur.pe:587

Intelligence


File Origin
# of uploads :
4
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Queries sensitive video device information (via WMI, Win32_VideoController, 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257146 Sample: Enquiry...exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 Yara detected AgentTesla 2->37 39 6 other signatures 2->39 7 Enquiry...exe 7 2->7         started        process3 file4 21 C:\Users\user\AppData\...\sdREvfLQqk.exe, PE32 7->21 dropped 23 C:\Users\...\sdREvfLQqk.exe:Zone.Identifier, ASCII 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp197C.tmp, XML 7->25 dropped 27 C:\Users\user\AppData\...nquiry...exe.log, ASCII 7->27 dropped 41 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->45 47 Injects a PE file into a foreign processes 7->47 11 Enquiry...exe 2 7->11         started        15 schtasks.exe 1 7->15         started        17 Enquiry...exe 7->17         started        signatures5 process6 dnsIp7 29 cosur.pe 186.64.116.185, 49728, 587 ZAMLTDACL Chile 11->29 31 mail.cosur.pe 11->31 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Moves itself to temp directory 11->51 53 Tries to steal Mail credentials (via file access) 11->53 55 2 other signatures 11->55 19 conhost.exe 15->19         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-04 16:33:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware evasion trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Maps connected drives based on registry
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Checks BIOS information in registry
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
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.

94bbb88ec9004efd95a824f6983344df

AgentTesla

Executable exe 80df8a8e23f8050391db8cb12edaeb701ade2022116f097a677761f22e37db73

(this sample)

  
Dropped by
MD5 94bbb88ec9004efd95a824f6983344df
  
Delivery method
Distributed via e-mail attachment

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