MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 89783698af3d7850d24aab49842448e97ea61977ceb7133d501057349d8cbffe. 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: 8

Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash:	89783698af3d7850d24aab49842448e97ea61977ceb7133d501057349d8cbffe
SHA3-384 hash:	0545e1e22f2b57b9f780c1c708bb81e0c3d96193cf512441c9980a04d779990eb3c07e52274e9d5c54a953d52e528fc8
SHA1 hash:	7c128d123de06af4fdb9448aab02ae952ca0896a
MD5 hash:	f19e40c4a17e876861224a3bdf4865db
humanhash:	uncle-lithium-triple-kitten
File name:	PO INOXIA-2020082.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	435'000 bytes
First seen:	2020-08-05 06:42:26 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep	6144:vHAgbCa8sGQTHsT8C55k/Bd0+gKAjWixZwlID0d4:vHX8kTM4km8Knixx3
Threatray	10'660 similar samples on MalwareBazaar
TLSH	43947C353CD3E219CD690A388875AEC6BA25769A3B518E1EB09F134C5F4365F6F0306E
Reporter	abuse_ch
Tags:	AgentTesla exe Yahoo

abuse_ch

Malspam distributing AgentTesla:

HELO: sonic301-22.consmr.mail.ir2.yahoo.com
Sending IP: 77.238.176.99
From: OSTO TRADE & CONSULTING GMBH <brother13.cn@yahoo.com>
Reply-To: OSTO TRADE & CONSULTING GMBH <brother13.cn@yahoo.com>
Subject: Re: RE: PO INOXIA
Attachment: PO INOXIA-2020082.zip (contains "PO INOXIA-2020082.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/38977/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

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/410194

Signature

.NET source code contains very large array initializations

Contains functionality to register a low level keyboard hook

Found malware configuration

Hides that the sample has been downloaded from the Internet (zone.identifier)

Injects a PE file into a foreign processes

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 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

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/89783698af3d7850d24aab49842448e97ea61977ceb7133d501057349d8cbffe/

Threat name:

ByteCode-MSIL.Infostealer.Fareit

Status:

Malicious

First seen:

2020-08-04 23:25:50 UTC

AV detection:

33 of 48 (68.75%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=rf4dngfphv4fbuskvneyijci5f7kmglxz23rgpkqcbltjhmmx77a._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

44ce0aee858d173dd0575154562f83765798c772f2d22781a107713619d77da5

AgentTesla

502875f253deea02380d3ee75353276b6dc7aad5210f968786aa9c69999f95f0

AgentTesla

51cd50a11b008b97589100b5233bf8ce7926dd49bb197ef45abd62788c5fdbcc

AgentTesla

53ee5b68eda4b568f3926e3a998d9cbdca156bbfd74ae4add5bc08f8f72f372e

AgentTesla

6ac8760908f2570c325974687806483fc02913c23a476a575362030f3926e2e5

AgentTesla

7867241670b0fd664072e1bf555bc56b8291a80e01adeebcffcc768a0e88c117

AgentTesla

a6a23d999601731d5feb9139f6e63ed206a2c45c9c6f2cd700da173b2a869661

AgentTesla

c82a5ce771ee4c6afb7406184afba40c9aa6281c54cb9d6eeef5861d476cb3e9

AgentTesla

df606c28da35e359bd59ca41514cc091ef18376114f13fa4073c58dd895bf248

AgentTesla

+ 10'650 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer persistence spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200805-ckln8ebdq6/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious use of SetThreadContext

Adds Run key to start application

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Reads user/profile data of local email clients

AgentTesla Payload

AgentTesla

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

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/89783698af3d7850d24aab49842448e97ea61977ceb7133d501057349d8cbffe

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