MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6c83d4d0ae6740caa2b34b14d8dc8c5853b11b6fb947c7299353de43fe12ac5. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f6c83d4d0ae6740caa2b34b14d8dc8c5853b11b6fb947c7299353de43fe12ac5
SHA3-384 hash: 1281fd4af3fb28969715ee4a938cad0ccd388e6608ccfe480850eb5b7504685c426d7eb14f46ac0d3ae039384ba169b9
SHA1 hash: e59405cbd67b40fd5a30da0b0b7a990c965ea63a
MD5 hash: c08526762a3274accbffd2ecfb29c2bc
humanhash: ten-sixteen-leopard-fillet
File name:factura.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:563'712 bytes
First seen:2020-06-08 19:12:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:M/mf5Cq6ILbSAqX1kpzcPXiXuWRLqQcLkaR7HDOrqespgBfegG6v:Jf4sPdwPXixJqdf72
Threatray 10'610 similar samples on MalwareBazaar
TLSH 64C4CFED321072EFC85BD072DE982C78EA51647B831F4243A42725ED9A4C99BCF255F2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.euromaster.es
Sending IP: 82.223.70.126
From: Miguel Escobar <logistica@carpyasociados.com>
Subject: PAGO DEL SALDO
Attachment: factura.pdf.7z (contains "factura.pdf.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VEF.870.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-06-08 19:14:06 UTC
AV detection:
28 of 31 (90.32%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=63ed2tik4z2azkrlgsyu3doiywctwenw7okhy4uzgu66ip7bflcq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
4bba94a55fd3800882705fe28738040cb2e439c1ccd41d5d28af6844148411f5
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66f8ad077e0fee37999b1d6cf088ac8a64737faf5a9ba80c250008e93ca43c00
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86bc0c5164d1c38fc8387d4126e6cf64df14b33cb3a3df6676c26511354daf37
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999b005ba933482d16ed50e10a24d19ebfc4252423b701b66712a256c5c5303f
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c2844c31f6c4c01ed6f337d65c76a25af92c56a53fe693305214ce6aacf77036
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cb92c3a55b468097670d01ac7a21956dec1ef3cba7c4d880b027727e80f80478
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dc166e47a81f06f2fb52a31caed4dd1e04a3a49f715be50c133579b7a9343146
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e4c60dcd8e589bb396186142764e1c233cb2540f28552f35eeb4f9d87d707eca
AgentTesla
+ 10'600 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201109-t6flkfafts/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
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
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

7z 4f962146b7809bb96a77b0c04bdc53af2f514ce42a76610ef1e93547b9cd8d15

AgentTesla

Executable exe f6c83d4d0ae6740caa2b34b14d8dc8c5853b11b6fb947c7299353de43fe12ac5

(this sample)

  
Dropped by
MD5 17437fdaf69d2c2fd78b181225a3689c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 4f962146b7809bb96a77b0c04bdc53af2f514ce42a76610ef1e93547b9cd8d15

Comments