MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 11f3dfff225ea56d89db46efa90526a1dce3a1da0ad47ee4781e6f3104c4a2ed. 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:	11f3dfff225ea56d89db46efa90526a1dce3a1da0ad47ee4781e6f3104c4a2ed
SHA3-384 hash:	325834cd79d0bf88c577f440144d81ca8b87761a791277ff1b7f226e4b356590f98509db0bace20654615d6c5aca807f
SHA1 hash:	b8ff70a6f968a5d9c54e117ce6a3e6f8df454ed9
MD5 hash:	e0342e4a70d634d8f815ce6cb50966b1
humanhash:	lamp-spaghetti-ack-quiet
File name:	INQUIRY No. 280720205467_pdf.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	674'816 bytes
First seen:	2020-07-28 13:40:18 UTC
Last seen:	2020-07-28 15:01:31 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:AYwutfN7BvQUF1XregWylEZHyOq0PGAxd5Di:AYwutF7BoUF1XregMZSqd5
Threatray	10'635 similar samples on MalwareBazaar
TLSH	96E4386D3A816828D53E2B35C1E85ED173B2B1473F02CB1EAADA0B5C5F1129F374719A
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: electronics.local
Sending IP: 103.1.12.68
From: Rodrigo Peralta <rperalta@llorente.cl>
Reply-To: Rodrigo Peralta <soomla6384@yahoo.com>
Subject: AW: AW: Inquiry
Attachment: INQUIRY No. 280720205467_pdf.rar (contains "INQUIRY No. 280720205467_pdf.exe")

AgentTesla SMTP exfil server:
mail.specialmetal.ir:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/33708/

Detection(s):

SecuriteInfo.com.CAP_HookExKeylogger.7875.16980.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a custom TCP 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/400426

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)

Initial sample is a PE file and has a suspicious name

Installs a global keyboard hook

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

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)

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

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:

agenttesla

Link:

https://mwdb.cert.pl/sample/11f3dfff225ea56d89db46efa90526a1dce3a1da0ad47ee4781e6f3104c4a2ed/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-07-28 13:42:07 UTC

AV detection:

20 of 29 (68.97%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=chz577zcl2sw3co3i3x2sbjguhoohio2blkh5zdydzxtcbgeulwq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

37c13fe1e55fbaa196cc1bb6ab1c2e30a326298687cd434f0b116c5ccb12a47e

AgentTesla

4fd96327aca2d44216adea947c36d2913c82929fc2c124750322f13ae99262ba

AgentTesla

59d49249f57fed4cf06476f15d0075dd8f5e139012a5312dad83058a5ffd6bdd

AgentTesla

72d61ba8aa584dac7ed458f0ec2d41b31b9413fbec60f19377fd2873ee859b4f

AgentTesla

74284d75ec5a248c3e828f240f148fece66ad7375a779a0c14edde6edcf6e058

AgentTesla

9dc3890b92c13e4cc8df3b4c4a6a00cb35a3bdc15b4c4d28bafbca3902525c66

AgentTesla

a8f804c2312a502e0eef99eb4582dbb7037bcf89031f707070f97a8ba53e5fb7

AgentTesla

dcbfc03cfe9523c25ab335f599cebcbbe8f2439ef7ab973aa9ec0330e4e7d11f

AgentTesla

ffb914ef6c0c0b2077f019be5f0fc486ff611af6ba5922bb4f9a44e57565b77e

AgentTesla

+ 10'625 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

spyware keylogger trojan stealer family:agenttesla persistence

Link:

https://tria.ge/reports/200728-flevj5n2z2/

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

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

Threat name:

Malicious File

Score:

0.75

Link:

https://yomi.yoroi.company/submissions/11f3dfff225ea56d89db46efa90526a1dce3a1da0ad47ee4781e6f3104c4a2ed

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