MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9b823a4a7732af045884bac1c801b2924521291e92157c7e90ed573f1236f54. 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:	b9b823a4a7732af045884bac1c801b2924521291e92157c7e90ed573f1236f54
SHA3-384 hash:	886bc489751e1ef63a9ce2f38086144a933a850c50e7e966a752732ad6308c21d05614ce23b7f6220b4500380c89a6f4
SHA1 hash:	45788c1bc647a628c3ecf414109ad9702e1e3294
MD5 hash:	7d3b4301c9c66c9fdb16dd433cb8caae
humanhash:	mexico-mars-pasta-oscar
File name:	Purchanse_order.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	791'040 bytes
First seen:	2020-08-31 10:46:09 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:EGGeadpvmrnVZtklYtgUyF6pK5fG5SMDDJ1YpAYgHYlYrbXqfVl:La7vm5Lz/AVtMnJ1wLpkXo
Threatray	10'460 similar samples on MalwareBazaar
TLSH	DBF4C02A030D6B2FD82875BD249042DCD1F19BC0FE34F5D8ED9720E555D628EA7AE2C6
Reporter	abuse_ch
Tags:	AgentTesla exe Hostwinds

abuse_ch

Malspam distributing AgentTesla:

HELO: hwsrv-762686.hostwindsdns.com
Sending IP: 104.168.158.102
From: AL BADIA CEMENT <info@chenyuanglobal.com>
Subject: RFQ
Attachment: Purchanse_order.zip (contains "Purchanse_order.exe")

AgentTesla SMTP exfil server:
mail.gascuenca.es:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/53409/

Detection(s):

SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Unauthorized injection to a recently created process

Creating a file

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/455260

Signature

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

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

Multi AV Scanner detection for domain / URL

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)

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/b9b823a4a7732af045884bac1c801b2924521291e92157c7e90ed573f1236f54/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-31 03:04:38 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=xg4chjfhomvparmijowbzaa3fesfeeur5eqvpr7jb3kxh4jdn5ka._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

527bf96dc4d090f961c250f7c6411f477acfafcea3a80e83f4f567a0d497f632

AgentTesla

578df50c34d2f8f3146e5c4a457c4e9eac639070d3766ba202c84af6a790d4a7

AgentTesla

640e087a78aa77a9bb49027500f1f29f9d31f5b64c13c99b690ea813d0737fd4

AgentTesla

ae8a8ca63a358e0c9cd1ce5100464f1c1dbd2b7724632fffc5e15152c67dc6fb

AgentTesla

b881e52663ba0b4af029f185d0ff8b16c7e77f253df90a489e46b67e44c3c20f

AgentTesla

b8de7c07a62506baf48b1b5c799d33341a68117b34f3e5ee31a0ff23e87313f9

AgentTesla

dd5712ad571847f064a5dfcd49ee82e3d2b42959bef23a773512dc41af030f6e

AgentTesla

de00e60ea65a5c4f7804c137b07d6973bdf8fc17ca192035b7976362e978a8d2

AgentTesla

e847719a98762bcf7422064186c2cdbb2f58000622448c3adcb6769b7cfbea68

AgentTesla

+ 10'450 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200831-gmfp3pcaej/

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/b9b823a4a7732af045884bac1c801b2924521291e92157c7e90ed573f1236f54

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