MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 397856a57872de4a988545cec0b7cbe95b385b20855bcb02660532f1f0fe50d0. 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: 10

Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash:	397856a57872de4a988545cec0b7cbe95b385b20855bcb02660532f1f0fe50d0
SHA3-384 hash:	91b2b66f912c16d0d8a24cb81caaabf3d7b83cbb19caedf170a6d2ef96cb70cd679e7e8899fb25bfdf305695b68c0204
SHA1 hash:	365de0d138244f088134b3498779eaff3180b983
MD5 hash:	e0db82cedd5eca589fd16b2c9aab94ad
humanhash:	connecticut-seventeen-avocado-cup
File name:	ceeold.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	928'256 bytes
First seen:	2020-07-29 10:57:24 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:GcJYIdwH6F3KOdcd6fuImkoP8ikCFWQdzMrxIjnvHISrXgEgIgP01d:GcKoFNc/trBU8DgXRud
Threatray	10'731 similar samples on MalwareBazaar
TLSH	A515AED9DE804ADBE06D0E70A049980CA3F59EA7D45DDE4B2C5270DD95B2383DB2374B
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: sonic302-28.consmr.mail.ne1.yahoo.com
Sending IP: 66.163.186.154
From: Gary Wadkins <gwadkins@topcos.net>
Reply-To: Gary Wadkins <gwadkins@topcos.net>
Subject: Re: Signed Hud!
Attachment: FB.xlsm

AgentTesla payload URL.
http://185.172.110.210/focm/ceeold.exe

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

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/34773/

Detection(s):

SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Creating a file

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/402311

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Found malware configuration

Installs a global keyboard hook

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)

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)

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/397856a57872de4a988545cec0b7cbe95b385b20855bcb02660532f1f0fe50d0/

Threat name:

ByteCode-MSIL.Trojan.NanoBot

Status:

Malicious

First seen:

2020-07-28 20:22:30 UTC

AV detection:

21 of 28 (75.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=hf4fnjlyolpevgefixhmbn6l5fntqwzaqvn4watgauzpd4h6kdia._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

7013e2ac13e42bbee07bb06c5f9c2e4b625a6599a64bccf0e844ba2e995e0737

AgentTesla

85ff4e030a543167359615da05e4611c0b9c7c0547e12b08b4db980ef34c276a

AgentTesla

886c0dcdd1fdc86e73466c23f98111ae03e224e721aef7cdd0626b5c0b6a46e8

AgentTesla

9afb1afff030f6cb575c9f66e9d21257e82fd4320751ea78dfe6711a2b047fa6

AgentTesla

ad7db1393e62d89dcb0039aa5ba64a897e88d3f6b76d146ccf419e952e57c317

AgentTesla

b1dfcf175d2aeff612c4aada38df796c1f4687caacd0b26e02f66485d5a32899

AgentTesla

c5684f8094ad4e3ad6c83aa3914c09bebbb16a8f202aad17b3bc45db1ba09ab1

AgentTesla

d104548b154ac28142944b839993b9f0c8ad45d42a3e72d888aa8ba0e22562fd

AgentTesla

dcbfc03cfe9523c25ab335f599cebcbbe8f2439ef7ab973aa9ec0330e4e7d11f

AgentTesla

+ 10'721 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

spyware keylogger trojan stealer family:agenttesla

Link:

https://tria.ge/reports/200729-kbv69tb4m6/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of SetThreadContext

Reads user/profile data of local email clients

Reads data files stored by FTP clients

Reads user/profile data of web browsers

AgentTesla

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

AgentTesla

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/397856a57872de4a988545cec0b7cbe95b385b20855bcb02660532f1f0fe50d0

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