MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51161728627b1ccdf0ad9b9228e0d0e1bdaecb11530c53dcc10df9f31ec2255f. 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:	51161728627b1ccdf0ad9b9228e0d0e1bdaecb11530c53dcc10df9f31ec2255f
SHA3-384 hash:	02a8c9586eb94c3edf524f12cb3c30f8261985e7287693953a3f22117bfa49d9186ae22a6ee75cdedb421e88418e956d
SHA1 hash:	24986c2c848710286f23dfbadffeb4cd5eda6648
MD5 hash:	b6ad45078bf162c1023f1abe6f5c2ee6
humanhash:	pizza-pasta-bluebird-hydrogen
File name:	3454345665432_PDF.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	463'872 bytes
First seen:	2020-08-05 11:43:39 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'796 x AgentTesla, 19'697 x Formbook, 12'276 x SnakeKeylogger)
ssdeep	12288:fS8V2C8H5G89FO/RSfKnKl79X4NwBKemkf:fSq+5P9FtR7R4mQe
Threatray	10'775 similar samples on MalwareBazaar
TLSH	98A4F12D77A0554AF1BE0E3F9D700183AE12F84FDE26D24B69B62269453E69CBC70F11
Reporter	abuse_ch
Tags:	AgentTesla ESP exe geo Santander

abuse_ch

Malspam distributing AgentTesla:

HELO: hwsrv-755778.hostwindsdns.com
Sending IP: 104.168.234.182
From: Factoring y Confirming - Grupo Santander <fycuot@gruposantander.es>
Subject: Confirming - Aviso de pago
Attachment: 3454345665432_PDF.GZ (contains "3454345665432_PDF.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/39475/

Detection(s):

Win.Packed.Nanocore-9229594-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a window

Unauthorized injection to a recently created process

Creating a file

Using the Windows Management Instrumentation requests

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/411036

Signature

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Found malware configuration

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

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)

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/51161728627b1ccdf0ad9b9228e0d0e1bdaecb11530c53dcc10df9f31ec2255f/

Threat name:

ByteCode-MSIL.Trojan.FormBook

Status:

Malicious

First seen:

2020-08-05 11:45:10 UTC

AV detection:

24 of 28 (85.71%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=kelbokdcpmom34fntojcrygq4g625syrkmgfhxgbbx47ghwcevpq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

0eec03f91bdb47839b74e2349be4173e9a6597eef7bfc38d718af770251487ff

AgentTesla

0fb739ef1d92cb9e84d30184e289bdcc2e1d851d302e69665d34ce9768c3ddbc

AgentTesla

1395147cd95e267f4ce4fa6aefcf8db497052d36aee2c4d0e32e15aff514796b

AgentTesla

19a8e4f9fb01ff4333c81f78bba61e42d516c860e8974e059be82f2bf9d5a641

AgentTesla

38206868d99ebc4c53f8f33daabe052724c36d71382bcbc98a37d12f0482261f

AgentTesla

7992c7a13287cca6f8528dcd6ee08e95367634aeb1dae73f3e194afbf1fe98a9

AgentTesla

8be1266645d388fa35124c58831cbd83fdc9b6faac7ad44ddaf4b0f6b9d2fd09

AgentTesla

a16156a698c131d4f0b4e9127996873c5c9a108cebecc0fb24ccd30b847e86af

AgentTesla

ef7a8f1478e57d2dedf96a00501903b7b5a571680286502f2f329ed2c8728b2b

AgentTesla

+ 10'765 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200805-4lcvnflavx/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Reads data files stored by FTP clients

AgentTesla Payload

AgentTesla

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

Threat name:

Suspicious File

Score:

0.55

Link:

https://yomi.yoroi.company/submissions/51161728627b1ccdf0ad9b9228e0d0e1bdaecb11530c53dcc10df9f31ec2255f

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