MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b044fa4d76f9c6799b1c9a15a1f70fc687a8116f7ea4ef9282e2d50a8bca4c8e. 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:	b044fa4d76f9c6799b1c9a15a1f70fc687a8116f7ea4ef9282e2d50a8bca4c8e
SHA3-384 hash:	edb2a7720d608ee0c9ea41c194dad1f6b3ebcc1dbc860db54675e4e2c24388a066ebb230d0c72f1324c52a1a613b223a
SHA1 hash:	b9d8588df5b759a2cc19a4bef2b4d288b3dfef41
MD5 hash:	2105480cedbc61282adde16a5ff7b07d
humanhash:	kitten-nebraska-winner-eighteen
File name:	AW & Invoice.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	550'400 bytes
First seen:	2020-08-17 13:57:39 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:PL4EcmZHAFaxmVmie9bngP8rrxi+K+eLX4+pGSWbwjKFNVgr73A8nAC:T4EcmZHAFaxmVmie9bngPsY+KXLNVWbQ
Threatray	10'554 similar samples on MalwareBazaar
TLSH	85C49C5A38D0E3DEC1E64FB948149C1667BA1F2E0606990FDC7B3AD367D9BC2BD24052
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: coscon.com
Sending IP: 37.48.85.197
From: Yang Zhijian <cs_heaq@coscon.com>
Subject: COSCO SHIPPING LINES CO.,LTD
Attachment: AW Invoice.gz (contains "AW & Invoice.exe")

AgentTesla SMTP exfil server:
smtp.yandex.ru:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/47070/

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/433672

Signature

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 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/b044fa4d76f9c6799b1c9a15a1f70fc687a8116f7ea4ef9282e2d50a8bca4c8e/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-17 05:54:30 UTC

AV detection:

24 of 29 (82.76%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=wbcputlw7hdhtgy4tik2d5ypy2d2qelpp2so7euc4lkqvc6kjsha._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

34835ff5a99d333a86d2fe7770cf4ab6612b1385d7d69d99272e96f084527237

AgentTesla

43289bb160c005728b4dc1d8cd723356f1e7d2e5ba90bea7d28c3334224939c0

AgentTesla

67f95900e94aed84cb50b3597df4b89270faa3b23ff0c9c6eb2398eb69c096bb

AgentTesla

860a68354fad849f4d5886f00c701638d1226088d4ca26c07216d089f986a7bb

AgentTesla

a20df8c992413eb34262d572f57d37c34dcdaab0fca4725dfd1a910f249f46a2

AgentTesla

a91926c898c91c02d44556c60d2ed4289fcdde2e2a03c0fdcc003678aa5d767c

AgentTesla

b71b1e0152b7112c6ad660c51751d19bf245fb7739c605c9389909fa4c721d06

AgentTesla

c232e05f633d3e2bd0a1486a955d7f72eb9155408a635666306d922b333809b2

AgentTesla

ccac5881ca9beeead13f5c7f05b289e9d3013a9eea7ce8a087dcb0aade9a60e2

AgentTesla

+ 10'544 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200817-52ccct2she/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

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.

Threat name:

Trojan

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b044fa4d76f9c6799b1c9a15a1f70fc687a8116f7ea4ef9282e2d50a8bca4c8e

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