MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f971483e6a1b7a66172f8c9507dbc7086900d3ed61f7bb99b0c80dc6418f1ca0. 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: f971483e6a1b7a66172f8c9507dbc7086900d3ed61f7bb99b0c80dc6418f1ca0
SHA3-384 hash: 4ac96ed386ee41d95d12960b208a6cc0d1c90261041d67dbfdb3a0842e9fa1ea7652567546e074168dcd9e4abada49f2
SHA1 hash: 5c11494bb3085af04c0367e28a9aa423ca6b4056
MD5 hash: 4a64d324b57389506a26d1a96c690b27
humanhash: moon-delta-twenty-september
File name:FRT232413459_021587280680686.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:434'176 bytes
First seen:2020-08-05 12:00:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:lGWEdA+uo9VXI1QtuLWDcpOX70IzQDONJG7qUaHXt+BCcWY:lxcA+ueVXVDcpQhjPYDaHXof
Threatray 10'660 similar samples on MalwareBazaar
TLSH 7C94E01D32A4944DF2BE0E3F9CB005939E26F80FDE22E64B26B41139497E59CBC61F61
Reporter abuse_ch
Tags:AgentTesla exe FedEx


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: fedex.com
Sending IP: 103.133.104.130
From: Fedexme-invoice <Fedexme-invoice@fedex.com>
Reply-To: Fedexme-invoice@fedex.com
Subject: FedEx Invoice - Do not reply to this email
Attachment: FRT232413459_021587280680686.rar (contains "FRT232413459_021587280680686.exe")

AgentTesla SMTP exfil server:
mail.pkfpmes.co.ke:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
64
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39523/
Detection(s):
Win.Packed.Nanocore-9229594-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
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
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/411107
Signature
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
Modifies the hosts 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)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257871 Sample: FRT232413459_021587280680686.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Sigma detected: Scheduled temp file as task from temp location 2->43 45 6 other signatures 2->45 8 FRT232413459_021587280680686.exe 5 2->8         started        process3 file4 25 C:\Users\user\AppData\...\TUrYguNetLGWAg.exe, PE32 8->25 dropped 27 C:\...\TUrYguNetLGWAg.exe:Zone.Identifier, ASCII 8->27 dropped 29 C:\Users\user\AppData\Local\...\tmp373D.tmp, XML 8->29 dropped 31 C:\...\FRT232413459_021587280680686.exe.log, ASCII 8->31 dropped 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->49 51 Injects a PE file into a foreign processes 8->51 53 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->53 12 FRT232413459_021587280680686.exe 2 8->12         started        17 schtasks.exe 1 8->17         started        signatures5 process6 dnsIp7 35 pkfpmes.co.ke 181.214.31.149, 49737, 587 ASDETUKhttpwwwheficedcomGB Chile 12->35 37 mail.pkfpmes.co.ke 12->37 33 C:\Windows\System32\drivers\etc\hosts, ASCII 12->33 dropped 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->55 57 Tries to steal Mail credentials (via file access) 12->57 59 Tries to harvest and steal ftp login credentials 12->59 61 2 other signatures 12->61 19 reg.exe 1 12->19         started        21 conhost.exe 17->21         started        file8 signatures9 process10 process11 23 conhost.exe 19->23         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f971483e6a1b7a66172f8c9507dbc7086900d3ed61f7bb99b0c80dc6418f1ca0/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 11:51:24 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7fyuqptkdn5gmfzprskqpw6hbbuqbu7nmh33xgnqzag4mqmpdsqa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'650 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200805-1v6cf58nda/
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Drops file in Drivers directory
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/f971483e6a1b7a66172f8c9507dbc7086900d3ed61f7bb99b0c80dc6418f1ca0

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

rar e846ba60180ac71e300033b02841825b5dbb99ea1f1656adc402d088bbb02520

AgentTesla

Executable exe f971483e6a1b7a66172f8c9507dbc7086900d3ed61f7bb99b0c80dc6418f1ca0

(this sample)

  
Dropped by
MD5 bb2ee3c086ecdbd364744b23b0272785
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e846ba60180ac71e300033b02841825b5dbb99ea1f1656adc402d088bbb02520
Cape
Cape
https://www.capesandbox.com/analysis/39523/

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