MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcb3a08ff39258f04e54ccb4ec531754fb2ece9755d92885f7f5c298d29897e4. 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:	bcb3a08ff39258f04e54ccb4ec531754fb2ece9755d92885f7f5c298d29897e4
SHA3-384 hash:	3bdff0d8051e4a5919ed5c38a512246ab559df6bcfa47acc01199e665bbfacb6167f2e28d7adc261ed6f28996b430309
SHA1 hash:	1bd87e9615947a3e2cdde28b93109aa8302b40cb
MD5 hash:	7ad653e9427c82cac1428a49b2de1edf
humanhash:	utah-north-pasta-idaho
File name:	Purchase Order POKD006192.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	864'768 bytes
First seen:	2020-08-04 11:20:18 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	4bae7147ec04d935db5914fb885560bb (11 x AgentTesla, 3 x MassLogger, 2 x AZORult)
ssdeep	12288:yz7G/lsTGbsiZQfwgZLObQINANWz3O6Ex7FxBwWTo7dsCrMB3Fy4+K:yetNafLLOM9QKlNwW87dsC4B3Fy4h
Threatray	11'730 similar samples on MalwareBazaar
TLSH	BA05BFDEB3E08437D1B2263D7C1B6FA45C3EBD012D289A467BE4ED4C5E386503A25297
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: outgoing30.jnb.host-h.net
Sending IP: 129.232.250.46
From: Mmakgang Pule <procurement@mzansiproperties.co.za>
Subject: Payment Notification from MNR DANIEL A BARNARD_TBQ78CMG
Attachment: Payment Notification.10rar.rar (contains "Purchase Order POKD006192.exe")

AgentTesla SMTP exfil server:
mail.dbbrokers.co.za:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/38577/

Detection(s):

PUA.Win.Adware.Slugin-6803969-0

PUA.Win.Adware.Slugin-6840354-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Unauthorized injection to a recently created process

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/409235

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)

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/bcb3a08ff39258f04e54ccb4ec531754fb2ece9755d92885f7f5c298d29897e4/

Threat name:

Win32.Trojan.FormBook

Status:

Malicious

First seen:

2020-08-04 11:22:09 UTC

AV detection:

41 of 48 (85.42%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=xsz2bd7tsjmpatsuzs2oyuyxkt5s5tuxkxmsrbpx6xbjruuys7sa._file

Verdict:

malicious

Label(s):

agenttesla

hawkeyekeylogger

AgentTesla

127670364822f9ec0ec2c9c7270830fdf703f03bbdc95db93b63579f2fc991fd

AgentTesla

245d4abbb0e7f27ec6526904c2a4fb22abc8fafaa63bd80bb7193f9a9a58b204

AgentTesla

28558516b6b4912e36105c566322d9e4a47a0fca0847c55227683c51834e98e9

AgentTesla

4fa84ddee70c59516a5727fa29bf70e548550592998cfc07b9b2b80325756b35

AgentTesla

731d6bd52db80b3c422dc2e72e9c17adf0018fe1a392e67d28f642d96c02411e

AgentTesla

7c18807c7588ab38168e53f2b32aeb41c08af34c25c89250ef627a0c7e090393

AgentTesla

a5efbcb25b4339ea9e004364c443afaadb86353cce9dcd9508115bda5a57be88

AgentTesla

c82a750c5a0dcc2a923f97b3bfbba13fd302144fdcdab020f7c7c94e24892807

AgentTesla

f7c64b437d10f5483b3a78cbf4a08f22cd829c60515c312d2bd21e1a37e250ce

AgentTesla

+ 11'720 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

upx keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200804-996tedfqnx/

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 data files stored by FTP clients

Reads user/profile data of local email 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:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/bcb3a08ff39258f04e54ccb4ec531754fb2ece9755d92885f7f5c298d29897e4

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