MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8e3aa38bc5411b933613c703086a892234231639204d40df93831d6062423c7. 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

SHA256 hash:	a8e3aa38bc5411b933613c703086a892234231639204d40df93831d6062423c7
SHA3-384 hash:	5a0bcb1ab4d82f626a9cc33a861faa20ff78863d31fe407d57da89c1c938361226b002b309d7790c442f0e97cf01da04
SHA1 hash:	b2cbe7e8642e234d541c3734f328375b0473f6f3
MD5 hash:	fcad5da5a6979b13f69461436c7d70d3
humanhash:	network-montana-london-timing
File name:	Dhl Contact Form.pdf.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	744'960 bytes
First seen:	2020-08-19 10:12:08 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:x3QrPihTKSNDJkJVYMiLmnA+p+4BM/EzOU3nFtdPZcryfNvf5z76msfyaEyobpoa:xdTKEoh/nlOgthceFfl75xyESTNbQ
Threatray	9'324 similar samples on MalwareBazaar
TLSH	CDF4023232A4DE15D5BB6332CDD9500007FAF802B262EB2DBCDD224D5991BA65B137DB
Reporter	abuse_ch
Tags:	AgentTesla DHL exe

abuse_ch

Malspam distributing AgentTesla:

HELO: mail.spiact.ro
Sending IP: 81.18.71.206
From: DHL notification <lucian.grigore@rd-enginery.ro>
Subject: DHL Notification
Attachment: Dhl Contact Form.pdf.gz (contains "Dhl Contact Form.pdf.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/48369/

Detection(s):

SecuriteInfo.com.Variant.Ser.MSILPerseus.5421.16881.22015.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

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/437396

Signature

.NET source code contains potential unpacker

Found malware configuration

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

Installs a global keyboard hook

Machine Learning detection for sample

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: Suspicious Double Extension

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 an obfuscated file name to hide its real file extension (double extension)

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/a8e3aa38bc5411b933613c703086a892234231639204d40df93831d6062423c7/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-18 09:04:46 UTC

AV detection:

21 of 29 (72.41%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=vdr2uof4kqi3sm3bhrydbbvisiruemldsicnidpzhay5mbreepdq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

70e55061f4e965a512c042bc1541f3d4e5a910a493ffb63d5a123f9c82a94f70

AgentTesla

8b2bf895a6d6db530ed42449ef1691d13c85a9091993e3b6bc1530456617ce29

AgentTesla

9be04012b4927a7e93498068acaaac6e157192df66509a20079fa39084735247

AgentTesla

a5343eacd38eeb6e79c054f2a9bdf40573293e9f7f5cff05965b26cd0aa2c308

AgentTesla

cadf2a43d7f85a109aed5177e99951fba7031621fa470af37a58f283b0edc886

AgentTesla

cb50cb2c6b005d6fcc77aaa46f7788949e36caa5784868f7cd8909439b8cd8db

AgentTesla

d1b9f876eb33669ae68b5e7b0ac255044390ae1f66e748388c15da65f53c99d5

AgentTesla

e1ded6fb9a4eac20c542d03955b207e710388ec55d25d6eed7e03ff03892a07d

AgentTesla

fc87f06a5699c35bd0fd808b51c0b0558f112e5bb0158d7553a07456d3cd4ffc

AgentTesla

+ 9'314 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200819-zvk2b2fryn/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

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