MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ae97f320b8367d49172cc3a96acd6bc765ba935ad5426d126f8fcc2b4a2fc094. 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

SHA256 hash: ae97f320b8367d49172cc3a96acd6bc765ba935ad5426d126f8fcc2b4a2fc094
SHA3-384 hash: b9cc03570aa5aa27305b7ffef8860b6296ba111e2cde8206b491c07c8fbb19464494ab7a6030df0e97a7ab1874d77691
SHA1 hash: 42139d4499987f728f2a34cc71aa3d1ba5cc242d
MD5 hash: eb1e050fb735091e55bd6c5c4c46989e
humanhash: friend-harry-zebra-early
File name:img-602105445-0004.exe
Download: download sample
Signature AgentTesla
File size:690'688 bytes
First seen:2020-08-27 08:09:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:XTluFkJX/JZx7eBHi7HQCMDZ8e08ao7H/tpO+P88DNipIqEiFvWFsWklzbTYH:DkFgxZEFEwCMDSIao7HVpOj8k3EiFOFF
Threatray 9'237 similar samples on MalwareBazaar
TLSH EAE4126527BECF19C8ED0BBD987D340403F4F84A6AA9E34D8F4592A669F27808510F77
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: nsl5.hosthane.com
Sending IP: 217.116.192.24
From: MTEX NS | Printer <impressora@mtexns.com>
Subject: MTEX NS | Scan from printer
Attachment: img-602105445-0004.zip (contains "img-602105445-0004.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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: 278551 Sample: img-602105445-0004.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Multi AV Scanner detection for dropped file 2->31 33 Sigma detected: Scheduled temp file as task from temp location 2->33 35 8 other signatures 2->35 7 img-602105445-0004.exe 5 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\lsoFSLWY.exe, PE32 7->19 dropped 21 C:\Users\...\lsoFSLWY.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmpFC50.tmp, XML 7->23 dropped 25 C:\Users\user\...\img-602105445-0004.exe.log, ASCII 7->25 dropped 37 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->37 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 43 2 other signatures 7->43 11 img-602105445-0004.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 Smtp.yandex.ru 77.88.21.158, 49733, 587 YANDEXRU Russian Federation 11->27 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2020-08-27 05:18:42 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer evasion spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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.

Malspam

AgentTesla

Executable exe ae97f320b8367d49172cc3a96acd6bc765ba935ad5426d126f8fcc2b4a2fc094

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments