MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3770ed7e40082d700739a98f8be9a3a338be55580942c0baddc5f03e03e5a63. 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:	b3770ed7e40082d700739a98f8be9a3a338be55580942c0baddc5f03e03e5a63
SHA3-384 hash:	e0d992e3dfc3ce7f2a0bf29769c96f002ec8b831513576f543f2c483b16ac7370c5971cf0aa67642f7de404c71ee1bd2
SHA1 hash:	4892c851710cb6cbc10c2710e0361f09f251da23
MD5 hash:	9c5bde5cf326a146fc1c58d2829571b5
humanhash:	paris-nebraska-eight-skylark
File name:	Image001____________.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	823'808 bytes
First seen:	2020-08-03 07:07:04 UTC
Last seen:	2020-08-03 12:28:36 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	831ec412be4cd06baa632b18086fedb4 (12 x AgentTesla, 6 x MassLogger, 6 x Loki)
ssdeep	12288:tZnVKDTViiHWs0H/3b6Wx/wtmqOFOUW3WM7lgDXYvyy85QTxazKUS8dh0:P44isf3bXot2CWClgDovyy85Qlydu
Threatray	11'756 similar samples on MalwareBazaar
TLSH	1E05BF23B5EC4536C5262A7C9D1B56B45C2ABF13AA28B47B2FF93C480F7528138F5253
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: midea.com
Sending IP: 185.222.57.165
From: Philippe Lee <philippe.li@midea.com>
Subject: Re: Transfer Confirmation 100241703
Attachment: Image001____________.gz (contains "Image001____________.exe")

AgentTesla SMTP exfil server:
smtp.muziris.in:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/37411/

Detection(s):

Sanesecurity.Rogue.0hr.20200803-0306.UNOFFICIAL

PUA.Win.Adware.Slugin-6803969-0

PUA.Win.Adware.Slugin-6840354-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Sending a UDP request

Using the Windows Management Instrumentation requests

Reading critical registry keys

Stealing user critical data

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/407333

Signature

Contains functionality to detect sleep reduction / modifications

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found malware configuration

Initial sample is a PE file and has a suspicious name

Machine Learning detection for sample

Maps a DLL or memory area into another process

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 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/b3770ed7e40082d700739a98f8be9a3a338be55580942c0baddc5f03e03e5a63/

Threat name:

Win32.Trojan.LokiBot

Status:

Malicious

First seen:

2020-08-03 01:58:39 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

43 of 48 (89.58%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=wn3q5v7eacbnoadttkmprpu2hizyxzkvqckcyc5n3rpqhyb6ljrq._file

Verdict:

malicious

Label(s):

agenttesla

hawkeyekeylogger

AgentTesla

30a0f8b6dc30fb3a9e649149d9e92f39b50b4d9c595f9d5c4400c62caad0b7b4

AgentTesla

310cda4734ff6074a97bb0e7cd6c5ebe6aaaec58408650752b73dbae53a5e396

AgentTesla

8ec138573f2b77cd4a2772d6d2abcc2130ac1d901340505332ce78fc7096622e

AgentTesla

9bcf29ef3bbb1003db97934e2412dfb77fc1d289797a9b4eab2af243bbc8987f

AgentTesla

a97aec67e2a556ec45ea8aa3db146d119d39b14486db55ad5b930f8295eccfae

AgentTesla

c95e7d84353b77c81870d17df0d8a73387b3d3804b5db509b50176b049fa7a8b

AgentTesla

e23a268f1e3c63c4b2460a42e219a7237744ddaad6d9bf383977c85d9921843d

AgentTesla

eadde88c8f7d7dcd4174654c77714475743d46b6314f56790e04da399f62f878

AgentTesla

fe36f8b161c6e9f38fba4be32eb2b67846c9c93de9f48028762f79e5ee2b6169

AgentTesla

+ 11'746 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

upx keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200803-t7zp2jbtdx/

Behaviour

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetThreadContext

Reads user/profile data of web browsers

Reads user/profile data of local email clients

Reads data files stored by FTP clients

UPX packed file

AgentTesla Payload

AgentTesla

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

Threat name:

Kryptik

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b3770ed7e40082d700739a98f8be9a3a338be55580942c0baddc5f03e03e5a63

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