MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3b81fe8022344fd599e5e45187f2a0f6100bb3b4135fcfa99912112bf129af7. 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: f3b81fe8022344fd599e5e45187f2a0f6100bb3b4135fcfa99912112bf129af7
SHA3-384 hash: 3d8a62d6bdc6051ffd61dd84e5521c1673f37e55f008fd6f3fdbcf1c7aa3099c13b2d2680a2c5999c1b8b7e3014726ee
SHA1 hash: 011ae61e6d52b2f7860e941043759e00dfdc110d
MD5 hash: 13a13b2959a41a5cc539eaf342c68b9a
humanhash: ceiling-north-moon-xray
File name:RFQ.07032020.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:620'032 bytes
First seen:2020-07-03 15:19:31 UTC
Last seen:2020-07-03 15:48:10 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 6144:WrZUkr7pGYSFnz7kQQiNFTD/aSd3G6g+9t4wRr/CxiIeAsE1nFKRPiw5HWKCkCxg:WVUCpG3gWX/aSd3xg6t4wUxkAAl//t
Threatray 10'864 similar samples on MalwareBazaar
TLSH 6FD448027EDEED14DDF682FE0D818F76CE5E74EE502091F939D8B29A1421B204ED864B
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail-smail-vm47.hanmail.net
Sending IP: 203.133.180.235
From: TMC (최 병 현) <this11c@hanmail.net>
Subject: RE: Re: RFQ. #07032020
Attachment: RFQ. 07032020. pdf.iso (contains "RFQ.07032020.pdf.exe")

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/18754/
Detection(s):
SecuriteInfo.com.Variant.Strictor.109508.12490.13688.UNOFFICIAL
Create hunting rule

Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f3b81fe8022344fd599e5e45187f2a0f6100bb3b4135fcfa99912112bf129af7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-03 15:21:06 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6o4b72acencp2wm6lzcrq7zkb5qqboz3ie27z6uzseqrfpystl3q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'854 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/200703-6j27h1smc2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Adds Run entry to start application
Reads user/profile data of web browsers
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Looks for VMWare Tools registry key
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
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

iso 1aac6c51f4f0de99fd522917da76eb13b64203b128fc4ce130a4aabbfb7954aa

AgentTesla

Executable exe f3b81fe8022344fd599e5e45187f2a0f6100bb3b4135fcfa99912112bf129af7

(this sample)

  
Dropped by
MD5 93ed5f1c2b8b7cd90d366173cfa1c3fc
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 1aac6c51f4f0de99fd522917da76eb13b64203b128fc4ce130a4aabbfb7954aa
Cape
Cape
https://www.capesandbox.com/analysis/18754/

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