MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 571d91bcbedea2198fed6ad8433d7faeaa9add927022c32dc2cce088e781263c. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 571d91bcbedea2198fed6ad8433d7faeaa9add927022c32dc2cce088e781263c
SHA3-384 hash: bd4fcae067e63cd4ea6e8611555c32498e19680cc25151302e8f87b935f740b0d4cd7470d66ada605dceeecaed30d709
SHA1 hash: 842de4497253343ab91d5c75e7d4dbcd2639843e
MD5 hash: e466396cdd8c13b7d720b275e4c16b05
humanhash: romeo-magazine-seventeen-bravo
File name:Reconfirm your IBAN.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:674'304 bytes
First seen:2020-07-07 17:26:17 UTC
Last seen:2020-07-07 19:08:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:2SFpjMPz9BoDrsUXsvmfECt63rMqvD/9z4dSJ4mKgfUEprkf1z23aCVBiECk7A:2SFpjQA3XsOfEz3N4IJn8zk7A
Threatray 10'856 similar samples on MalwareBazaar
TLSH 21E41A3CB782A419CE3D053248A95DD1F6B1A5873B02CB4F39CA476C6E027DF7B46299
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: merlo.com
Sending IP: 37.49.224.164
From: office<info@merlo.com>
Subject: Reconfrim Your IBAN
Attachment: Reconfirm your IBAN.iso (contains "Reconfirm your IBAN.exe")

AgentTesla SMTP exfil server:
smtp.yandex.ru:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/22374/
Detection(s):
SecuriteInfo.com.MSIL.GenKryptik.ENSB.9544.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/571d91bcbedea2198fed6ad8433d7faeaa9add927022c32dc2cce088e781263c/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 17:28:07 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=k4ozdpf632rbtd7nnlmegpl7v2vjvxmsoarmglocztqirz4bey6a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'846 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200707-a7rlq1sd6a/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Program crash
Suspicious use of SetThreadContext
Adds Run entry to start application
Reads user/profile data of web browsers
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Executes dropped EXE
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 34920f5af341d4a6573170820cc11bdbb3d764996bbbdca5d0d964d7080fba6b

AgentTesla

Executable exe 571d91bcbedea2198fed6ad8433d7faeaa9add927022c32dc2cce088e781263c

(this sample)

  
Dropped by
MD5 1ade81c1dd36d1e9e34519c4e0c3c4a3
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22374/
  
Dropped by
SHA256 34920f5af341d4a6573170820cc11bdbb3d764996bbbdca5d0d964d7080fba6b

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